Differential / Bias Regulators

Pressure Reducing Regulators

Relief Valve / Backpressure Regulators

Pressure Reducing Regulators

Relief Valves / Backpressure Regulators

Vacuum Applications

Vacuum Breakers

Vacuum Regulators

Differential / Bias Regulators

Pressure Reducing Regulators

95 Series Pressure Reducing Regulator

The 95H Series regulators are compact, rugged, direct-operated, pressure reducing regulators.  These units are available in 1/4 through 2-inch (DN 6 through 50) body sizes and are offered with several different end connection styles.  They are designed to handle inlet pressures up to 600 psig (41,4 bar).

The 95L Series regulators are compact, rugged, direct-operated pressure regulators for outlet pressures of 2 to 30 psig (0,14 to 2,1 bar).  The units are available in 1/4 through 1-inch sizes and are offered in several different end connection styles.  These regulators are designed to handle inlet pressures up to 300 psig (20,7 bar).

Specs

Features

  • Versatility
  • Optional Elastomer Seats for Tight Shutoff
  • In-Line Maintenance
  • High Stability
  • Compact, Rugged Construction


Body Size and End Connection Style

  • Cast Iron Body
    • 95H Series: 1/4, 1/2, 3/4, 1, 1-1/2 or 2-inch (DN 6, 15, 20, 25, 40 or 50) body size NPT end connection
    • 95L Series: 1/4, 1/2, 3/4 or 1-inch (DN 6, 15, 20 or 25) body size NPT end connection
  • Steel or Stainless Steel
    • 95H Series: 1/4-inch (DN 6) body size NPT end connection
    • 95H Series: 1/2, 3/4, 1, 1-1/2 or 2-inch (DN 15, 20, 25, 40 or 50) body size NPT, 150RF, 300RF, SWE, or PN 16/25/40 end connection
    • 95L Series: 1/2, 3/4 or 1-inch (DN 15, 20 or 25) body size NPT, 150RF, 300RF, or PN 16/25/40 end connection

Maximum Inlet Pressure

  • 95H Series: 600 psig (41,4 bar)
  • 95L Series: 300 psig (20,7 bar)

Outlet Pressure Ranges

  • 95H Series: 5 to 400 psig (0,34 to 27,6 bar) in several ranges
  • 95L Series: 2 to 30 psig (0,14 to 2,1 bar) in three ranges

Pressure Registration

  • 95 Series: Internal

Relief Valve / Backpressure Regulators

98 Series Relief Valve or Backpressure Regulator

The 98H Series backpressure/relief valves are direct-operated.  The Type 98HD uses additional pressure loading to maintain relief differential pressures or backpressures.

The 98L Series are direct-operated backpressure/relief valves that are used in a variety of liquid or gas applications, such as pump recirculation, general backpressure, and relief applications.  The Type 98LD uses additional pressure loading to maintain relief differential pressures or backpressure.

Specs

Features

  • Highly versatile
  • Close, stable regulation
  • Compact, rugged design
  • Wide material selection
  • In-line maintenance
  • Hastelloy C and Monel materials available
  • Chemically compatible elastomers
  • NACE construction available

Body Size and End Connection Style
98H Series

  • Cast Iron
    • 1/4 (DN 6) body size NPT end connections
    • 1/2, 3/4, 1-1/2, 2 (DN 15, 20, 25, 40 or 50) body size NPT end connections
  • Steel or Stainless Steel
    • 1/4 (DN 6) body size NPT end connections
    • 1/2, 3/4, 1-1/2, 2 (DN 15, 20, 25, 40 or 50) body size NPT, 150 RF, 300 RF, SWE, PN 16/25/40

98L Series

  • Cast Iron
    • 1/4 (6 DN) body size NPT end connections
    • 1/2, 3/4 or 1 (DN 15, 20 or 25) body size NPT end connections
  • Steel, Stainless Steel, Monel or Hastelloy C
    • 1/4 (DN 6) body size NPT end connection
    • 1/2, 3/4, or 1 (DN 15, 20 or 25) body size NPT end connections

Maximum Relief (Inlet) Pressures

  • 98H: 300 psig (20,7 bar)
  • 98HH and 98HD: 400 psig (27,6 bar)
  • 98L: 125 psig (8,6 bar)
  • 98LD: 150 psig (10,3 bar)

Relief Set or Differential Pressure Ranges

  • 98H and 98HD: 5 to 200 psig (0,34 to 13,8 bar) in four ranges for each body size
  • 98HH: 150 to 375 psig (10,3 to 25,9 bar) in one range
  • 98L Series: 2 to 38 psig (0,14 to 2,62 bar)


Approximate Weights
Type 98H:

  • 1/4 and 1/2-inch (DN 6 and 15) Body: 7 lbs (3,18 kg)
  • 3/4 and 1-inch (DN 20 and 25) Body: 16 lbs (7,26 kg)
  • 1-1/2 and 2-inch (DN 40 and 50) Body: 55 lbs (25 kg)

Type 98L:

  • 1/4-inch (DN 6) Body: 6 lbs (2,80 kg)
  • 1/2-inch (DN 15) Body: 13 lbs (5,90 kg)
  • 3/4 and 1-inch (DN 20 and 25) Body: 30 lbs (13,6 kg)

Pressure Reducing Regulators

Types 67SS and 67SSR Pressure Reducing Regulators

The Types 67SS and 67SSR instrument supply regulators are typically used to provide reduced pressures to pneumatic and electropneumatic controllers and other instruments. These direct-operated regulators are suitable as pilot supply regulators for most air or gas applications.

Specs

Features

  • Compact, Rugged Design
  • In-Line Maintenance
  • Token Internal Relief (Type 67SSR)
  • Pressure Gauges Available
  • High-Pressure Inlet Capability
  • Second Outlet Pressure Tapping
  • Panel Mount Available

Body Sizes and End Connection Styles

  • 1/4-inch NPT screwed

Approximate Shipping Weight

  • Up to 1.5 pounds (0,7 kg)

Maximum Inlet Pressure (Body Rating)

  • 67SS and 67SSR: 400 psig (27,6 bar)

Maximum Outlet (Casing) Pressure

  • 50 psig (3,4 bar) over outlet pressure setting or 110 psig (7,6 bar) whichever is greater

Outlet Pressure Ranges

  • 3 to 100 psig (0,21 to 6,9 bar) in four ranges

Flow Coefficients

  • Wide-Open Cg: 8.5
  • Wide-Open Cv: 0.28
  • C1: 30.4

Temperature Capabilities

  • Nitrile: -20° to 180°F (-29° to 82°C)
  • Fluoroelastomers (FKM): 0° to 300°F (-18 to 149°C)

95 Series Pressure Reducing Regulator

The 95H Series regulators are compact, rugged, direct-operated, pressure reducing regulators.  These units are available in 1/4 through 2-inch (DN 6 through 50) body sizes and are offered with several different end connection styles.  They are designed to handle inlet pressures up to 600 psig (41,4 bar).

The 95L Series regulators are compact, rugged, direct-operated pressure regulators for outlet pressures of 2 to 30 psig (0,14 to 2,1 bar).  The units are available in 1/4 through 1-inch sizes and are offered in several different end connection styles.  These regulators are designed to handle inlet pressures up to 300 psig (20,7 bar).

Specs

Features

  • Versatility
  • Optional Elastomer Seats for Tight Shutoff
  • In-Line Maintenance
  • High Stability
  • Compact, Rugged Construction


Body Size and End Connection Style

  • Cast Iron Body
    • 95H Series: 1/4, 1/2, 3/4, 1, 1-1/2 or 2-inch (DN 6, 15, 20, 25, 40 or 50) body size NPT end connection
    • 95L Series: 1/4, 1/2, 3/4 or 1-inch (DN 6, 15, 20 or 25) body size NPT end connection
  • Steel or Stainless Steel
    • 95H Series: 1/4-inch (DN 6) body size NPT end connection
    • 95H Series: 1/2, 3/4, 1, 1-1/2 or 2-inch (DN 15, 20, 25, 40 or 50) body size NPT, 150RF, 300RF, SWE, or PN 16/25/40 end connection
    • 95L Series: 1/2, 3/4 or 1-inch (DN 15, 20 or 25) body size NPT, 150RF, 300RF, or PN 16/25/40 end connection

Maximum Inlet Pressure

  • 95H Series: 600 psig (41,4 bar)
  • 95L Series: 300 psig (20,7 bar)

Outlet Pressure Ranges

  • 95H Series: 5 to 400 psig (0,34 to 27,6 bar) in several ranges
  • 95L Series: 2 to 30 psig (0,14 to 2,1 bar) in three ranges

Pressure Registration

  • 95 Series: Internal

95B Series Bronze Pressure Reducing Regulators

The 95B Series bronze, direct-operated, pressure reducing regulators are designed to meet the needs of a variety of specialty and demanding applications. These compact, large-capacity regulators are available in 1/2, 3/4, 1, 1-1/2, and 2-inch (DN 15, 20, 25, 40, and 50) sizes with NPT screwed end connections. They are designed to handle pressures up to 350 psig (24,1 bar) and temperatures from -325 to 350°F (-198 to 176°C).

Specs

Features

  • Bronze construction
  • Cryogenic temperature applications
  • Specialty gases
  • Oxygen cleaning
  • Versatile
  • Compact, rugged construction


Body Size and End Connection Style

  • 95BL: 1/2-inch (DN 15) NPT
  • 95BH: 1/2, 3/4, 1, 1-1/2 and 2-inch (DN 15, 20, 25, 40 and 50) NPT

Maximum Inlet Pressure

  • 95BL: 250 psig (17,2 bar)
  • 95BH: 350 psig (24,1 bar)


Maximum Allowable Operating Inlet Pressure

  • 95BL Bronze: 250 psig (17,2 bar)
  • 95BH
    Bronze: 
    350 psig (24,1 bar)
    Cast Iron:
     250 psig (17,2 bar)

Outlet Pressure Ranges

  • 95BL: 2 to 30 psig (0,14 to 2,1 bar) in three ranges
  • 95BH: 5 to 150 psig (0,34 to 10,3 bar) in several ranges

Shutoff Classification Per ANSI/FCI 70-2-1975 R1990

  • Metal Seats: Class IV (standard)
  • Elastomer Seats: Class VI or better
  • Teflon: Class V

Pressure Registration

  • Internal


Approximate Weight

  • 95BL:  18 lb (8,1 kg)
  • 95BH
    1/2-inch (DN 15) Body:
     10 lb (4,5 kg)
    3/4 and 1-inch (DN 20 and 25) Bodies:
     20 lb (9,1 kg)
    1-1/2 and 2-inch (DN 40 and 50) Bodies:
     73 lb (33,1 kg)

627 Series Pressure Reducing Regulators

The 627 Series direct-operated pressure reducing regulators are for low-and high-pressure systems. The 627 Series can be used as farm-tap or small city gate regulators, monitoring regulators, or high-pressure industrial gases.

Specs

Features

  • Internal Relief Valve Available
  • Relief Operation Indicator
  • Easy to Maintain
  • Installation Adaptability
  • Application Versatility
  • Tamper-Resistant
  • Wide Range of Flow Capabilities
  • Tight Shutoff Capability
  • NACE Configuration Available
  • DVGW Approved

Body Sizes and End Connection Styles

  • 3/4-inch (DN 20)
    Ductile Iron: NPT
    WCB Steel:  NPT, 300 RF or 600 RF flanged
  • 1 or 2-inch (DN 25 or 50)
    Ductile Iron:  NPT
    WCB Steel:  NPT, 150 RF, 300 RF, 600 RF, or PN 16/25/40 flanged

Maximum Inlet Pressure

  • 2000 psig (138 bar) for NPT steel
  • 1480 psig (102 bar) for raised-face flanged steel
  • 1000 psig (69 bar) for ductile iron

Maximum Outlet (Casing) Pressure

  • 1500 psig (103 bar)

Outlet Pressure Range

  • 5 to 500 psig (0,34 to 34,5 bar) in six ranges

Pressure Registration

  • Refer to Bulletin

Shipping Weights

  • Ductile Iron or Steel Casings:  10 lb (4,5 kg)
  • Aluminum Casings: 6.3 lb (2,8 kg)

1098-EGR & 1098H-EGR Pressure Reducing Regulators

Type 1098-EGR and 1098H-EGR regulators provide accurate pressure control in a variety of applications: natural gas systems; fuel gas supply to industrial boilers, furnaces and mixers; and commercial or industrial businesses such as steel mils, asphalt plants, and shopping centers.  This regulator is used with a Type 6352, 6353, 6354 or 61 Series pilot.

The superior performance of this regulator is due to the amplifying effect of the pilot and the two-path control system.  Changes in outlet pressure act quickly on the actuator diaphragm to provide fast response to changes.  The pilot amplifies system changes, positioning the main valve for precise control.

Specs

Features

  • Labor-Saving Trim Maintenance
  • Ease of On-Site Maintenance
  • No Atmospheric Bleed
  • Noise Reduction Capability
  • Travel Indicator
  • NACE Configurations Available
  • Fixed Factor Billing
  • RegFlo” Compatible

Body Sizes and End Connection Styles

  • Cast Iron
    1 or 2-inch (DN 25 or 50) body sizes: NPT or ANSI Class 125FF or 250RF
    3, 4 or  6-inch (DN 80, 100 or 150) body sizes: ANSI Class 125FF or 250RF
  • Steel or Stainless Steel
    1 or 2-inch (DN 25 or 50) body sizes: NPT, BSP, ANSI Class 150RF, 300RF, 600RF, BWE, SWE, or P/N 16/25/40
    3, 4, 6, 8×6 or 12×6-inch (DN 80, 100, 150, 200×150 or 300×150) body sizes: ANSI Class 150RF, 300RF, 600RF, BWE, or P/N 16/25/40

Maximum Inlet Pressure

  • 400 psig (28 bar) or body rating limit whichever is lower

Maximum Outlet (Casing) Pressure

  • 1098: 115 psig (7,9 bar) depending upon actuator size
  • 1098H: 400 psig (27,6 bar)

Outlet Pressure Ranges

  • 2-inches w.c. to 300 psig (5 mbar to 20,7 bar) in 19 ranges

Pressure Registration

  • External

Temperature Capabilities

  • Neoprene or Nitrile: -20 to 150°F (-29 to 66°C)
  • Fluoroelastomer (FKM): 0 to 300°F (-18 to 149°C)

Shipping Weights

Body Size Inches (DN)

Approximate Shipping Weight, Pounds (kg)

1098 Size 30 Actuator

1098 Size 40 Actuator

1098 Size 70 Actuator

1098H Size 30 Actuator

1 (25)

55 (25)

65 (29)

140 (64)

80 (36)

2 (50)

75 (34)

85 (39)

160 (73)

100 (45)

3 (80)

115 (52)

125 (57)

200 (91)

140 (64)

4 (100)

165 (75)

175 (79)

250 (113)

190 (86)

6 (150)

350 (159)

360 (163)

435 (197)

375 (170)

For larger sizes, please contact a Northeast Controls Sales Engineer.

1301 Series High-Pressure Regulators

The proven reliability and accurate regulation of the Type 1301F and 1301G direct-operated regulators are used for numerous high-pressure applications with inlet pressures up to 6000 psig (414 bar).  These regulators are available in brass or stainless steel construction.  Their rugged design offers versatility for a wide range of applications.

Specs

Features

  • Durable Stainless Steel Diaphragm
  • Spare Valve Disk Provided
  • ANSI Class VI Shutoff
  • Sour Gas Service Capability

Body Size and End Connection Style

  • 1/4-inch (DN 6) NPT

Maximum Inlet Pressure

  • 6000 psig (414 bar)

Maximum Outlet Pressure

  • 1301F: 250 psig (17,2 bar)
  • 1301G: 550 psig (38 bar)

Outlet Pressure Ranges

  • 1301F: 10 to 225 psig (0,69 to 16 bar) in three ranges
  • 1301G: 200 to 500 psig (13,8 to 34,5 bar)

Pressure Registration

  • Internal

Temperature Capabilities

  • Nylon Valve Disk and Neoprene Gaskets: -20° to 180°F (-29° to 82°C)
  • (PTFE) Valve Disk and Fluoroelastomer (FKM) Gaskets: -20° to 400°F (-29° to 204°C)
  • (PTFE) Valve Disk and Ethylenepropylene (EPDM) Gaskets: -40° to 300°F (-40° to 149°C)

Approximate Weight 8 pounds (3.6 kg)

Y690A Series Tank Blanketing Valve

The Y690A Series Gas Blanketing Regulator System reduces a high-pressure gas, such as nitrogen, to maintain a protective environment above any liquid stored in a tank or vessel. The regulator system replaces the volume of vapors with a volume of blanketing gas to prevent the internal vessel pressure from decreasing, when liquid is being pumped out or when the vessel is suddenly cooled, causing vapors to contract. In both cases a slight positive vessel pressure prevents outside, air, moisture and other contaminants from entering the vessel. The Type Y690A is a direct-operated regulator used for accurate pressure control on very low pressure blanketing systems. Downstream pressure is sensed through a pitot tube installed in the lower casing of the regulator, thus no external control line is required. The Type Y690AM uses a control line to more accurately control the pressure if the regulator is mounted away from the tank.

Specs

Features

  • Easy Conversion Between Constructions
  • Sour Gas Service Capability
  • Inlet Pressure Equals Outlet Pressure
  • Corrosion Resistance
  • Multiple Applications

Body Sizes

  • 3/4 or 1-inch (DN 20 or 25)


Maximum Allowable Inlet Pressure

  • 150 psig (10,3 bar)


Maximum Outlet Pressure (Casing)

  • 150 psig (10,3 bar)

Maximum Emergency Outlet Pressure to Avoid Internal Parts Damage

  • 150 psig (10,3 bar)

Material Temperature Capabilities

  • Nitrile (NBR): -20 to 180º F (-29 to 82ºC)
  • Fluoroelastomer (FKM): 40 to 300ºF (4 to 149ºC)
  • Ethylenepropylene (EPDM): -20 to 300ºF (-29 to 149ºC)
  • Perfluoroelastomer(FFKM): -20 to 300ºF (-29 to 149C)

Pressure Setting Adjustment

  • Adjusting

Spring Case Connection

  • 1/4-inch NPT


Diaphragm Case Connection

  • 1/2-inch NPT

Type Y692 Tank Blanketing Valve

The Accu-Pressure Type Y692 gas blanketing regulator is a pressure reducing self-operated regulator with internal registration requiring no downstream control line. It is used for accurate pressure control on very low pressure blanketing systems. Blanketing with low pressure gas helps prevent corrosion, helps control emissions from the blanketed product and helps protect against any contamination to the blanketed product by atmospheric conditions.
The regulator will maintain a positive vessel pressure reducing the possibility of vessel wall collapse. The Type Y692 is available in 1-1/2 or 2-inch (DN 40 or 50) body sizes.

Specs

Features

  • In-Line Inspection and Maintenance
  • Accuracy of Control
  • Speed of Response
  • Ease of Installation

Body Sizes and End Connection Styles

  • Cast Iron
    • 1-1/2-inch (DN 40) body size NPT end connection
    • 2-inch (DN 50) body size NPT or 125 FF end connections
  • Steel or Stainless Steel
    • 1-1/2 or 2-inch (DN 40 or 50) body size NPT, SWE, 150 RF, 300 RF, or PN 16/25/40 end connections
  • Hastelloy C
    • 1-1/2 or 2-inch (DN 40 or 50) body size 150 RF end connections

Temperature Capabilites

  • Nitrile: -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
  • Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)

Maximum Inlet Pressure

  • 150 psig (10,3 bar)

Maximum Outlet (Casing) Pressures

  • Operating: 3 psig (0,21 bar) above outlet pressure setting
  • Emergency: 15 psig (1,0 bar)


Outlet Pressure Ranges

  • 1-inch w.c. to 10 psig (2,5 mbar to 0,69 bar) in seven ranges

Pressure Registration

  • Internal (standard) or External

Relief Valve / Backpressure Regulators

Type 63EG-98HM Relief Valve or Backpressure Regulator

The Type 63EG-98HM can be used for gas applications up to 450ºF (232ºC).  Perfluoroelastomers are an option that offers superior resistance to heat and chemicals.

Specs

Features

  • High capacity
  • Highly versatile
  • Fast response time
  • Noise reduction option
  • Chemically compatible elastomers
  • Wide material selections
  • NACE construction available

Body Size and End Connection Styles

  • 2-inch (DN 50) body with NPT, 125 FF, 150 RF, 250 RF, 300 RF, 600 RF, or PN 16/25/40 end connections
  • 3, 4 or 6-inch (DN 80, 100 or 150) body with 125 FF, 150 RF, 300 RF, 600 RF, or PN 16/25/40 end connections
  • 8 x 6-inch (DN 200 x 150) body with 150 RF, 300 RF or 600 RF flanged end connections

Maximum Inlet Pressure

  • 450 psig (31 bar), including build-up

Maximum Differential Pressure

  • 400 psig (28 bar)

Relief Set Pressure Ranges

  • 15 to 375 psig (1,0 to 25,9 bar) in five ranges

Temperature Capabilites

  • Fluoroelastomers (FKM): 0º to 300º F (-18º to 149º C)
  • Perfluoroelastomer (FFKM): -20º to 450º F (-29º to 232º C)
  • Ethylenepropylene (EPDM): -40º to 275º F (-40º to 135º C)

98 Series Relief Valve or Backpressure Regulator

The 98H Series backpressure/relief valves are direct-operated.  The Type 98HD uses additional pressure loading to maintain relief differential pressures or backpressures.

The 98L Series are direct-operated backpressure/relief valves that are used in a variety of liquid or gas applications, such as pump recirculation, general backpressure, and relief applications.  The Type 98LD uses additional pressure loading to maintain relief differential pressures or backpressure.

Specs

Features

  • Highly versatile
  • Close, stable regulation
  • Compact, rugged design
  • Wide material selection
  • In-line maintenance
  • Hastelloy C and Monel materials available
  • Chemically compatible elastomers
  • NACE construction available


Body Size and End Connection Style

98H Series

  • Cast Iron
    • 1/4 (DN 6) body size NPT end connections
    • 1/2, 3/4, 1-1/2, 2 (DN 15, 20, 25, 40 or 50) body size NPT end connections
  • Steel or Stainless Steel
    • 1/4 (DN 6) body size NPT end connections
    • 1/2, 3/4, 1-1/2, 2 (DN 15, 20, 25, 40 or 50) body size NPT, 150 RF, 300 RF, SWE, PN 16/25/40

98L Series

  • Cast Iron
    • 1/4 (6 DN) body size NPT end connections
    • 1/2, 3/4 or 1 (DN 15, 20 or 25) body size NPT end connections
  • Steel, Stainless Steel, Monel or Hastelloy C
    • 1/4 (DN 6) body size NPT end connection
    • 1/2, 3/4, or 1 (DN 15, 20 or 25) body size NPT end connections

Maximum Relief (Inlet) Pressures

  • 98H: 300 psig (20,7 bar)
  • 98HH and 98HD: 400 psig (27,6 bar)
  • 98L: 125 psig (8,6 bar)
  • 98LD: 150 psig (10,3 bar)

Relief Set or Differential Pressure Ranges

  • 98H and 98HD: 5 to 200 psig (0,34 to 13,8 bar) in four ranges for each body size
  • 98HH: 150 to 375 psig (10,3 to 25,9 bar) in one range
  • 98L Series: 2 to 38 psig (0,14 to 2,62 bar)

Approximate Weights
Type 98H:

  • 1/4 and 1/2-inch (DN 6 and 15) Body: 7 lbs (3,18 kg)
  • 3/4 and 1-inch (DN 20 and 25) Body: 16 lbs (7,26 kg)
  • 1-1/2 and 2-inch (DN 40 and 50) Body: 55 lbs (25 kg)

Type 98L:

  • 1/4-inch (DN 6) Body: 6 lbs (2,80 kg)
  • 1/2-inch (DN 15) Body: 13 lbs (5,90 kg)
  • 3/4 and 1-inch (DN 20 and 25) Body: 30 lbs (13,6 kg)

Type Y695A Vapor Recovery Valve

The Y695A backpressure/relief valves are direct-operated and are used to maintain a constant inlet pressure or vessel pressure with the outlet flowing to atmosphere or to a system whose pressure is lower than the inlet.

The Type Y695AM has a blocked throat and O-ring stem seat to allow for external pressure registration.  The lower diaphragm case is tapped 1/2-inch NPT for control line connection.

Specs

Features

  • Ease of inspection and maintenance
  • Precise control
  • Rugged construction
  • Simplicity
  • NACE construction available

Body Sizes

  • 3/4 or 1-inch (DN 20 or 25)

Maximum Inlet Pressure

  • 150 psig (10,3 bar)

Relief Set Pressure Range

  • 2-inches w.c. to 7 psig (5 mbar to 0,48 bar) in six ranges

Pressure Registration

  • Type Y695A: Internal
  • Type Y695AM: External

Temperature Capabilities

  • Nitrile (NBR): -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 10 149°C)
  • Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)
  • Ethylenepropylene (EPDM): -20 to 275°F (-29 to 135°C)

Type Y696 Vapor Recovery Valve

The Type Y696 is a direct-operated backpressure/relief valve with internal registration requiring no downstream control line. The Type Y696 is used to sense an increase in pressure and vent excessive pressure to atmosphere.

Specs

Features

  • Ease of inspection and maintanence
  • Precise control
  • Rugged construction
  • Simplicity
  • Low setpoint

Body Sizes and End Connection Styles

  • Cast Iron
    • 1-1/2 or 2-inch (DN 40 or 50) body size NPT end connection
  • Stainless Steel
    • 1-1/2 or 2-inch (DN 40 or 50) body size NPT, 150 RF, 300 RF, or PN 16/25/40 end connections
  • Hastelloy C
    • 1-1/2 or 2-inch (DN 40 or 0) body size 150 RF end connection


Flow Coefficients

  • Wide-Open Cg: 515
  • Wide-Open Cv: 14.7
  • C1: 35

Temperature Capabilites

  • Nitrile: -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
  • Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)
  • Ethylenepropylene: -20 to 275°F (-29 to 135°C)

Maximum Inlet Pressure

  • 15 psig (1,0 bar)

Relief Set Pressure Ranges

  • 2-inches w.c. to 7 psig (5 mbar to 0,48 bar) in six ranges
    Pressure Registration – Internal

Vacuum Applications

Vacuum Breakers

Y690VB Series Vacuum Breaker

The Y690VB Series vacuum breakers are used for precise control of small capacity, low-pressure service applications where an increase in vacuum must be limited. These direct-operated vacuum breakers come in 3/4 or 1-inch (DN 20 or 25) body sizes and have a 1/4-inch (6,4 mm) or 1/2-inch (12,7 mm) orifice.

Specs

Features

  • Common Spare Parts
  • Tamper-Resistant Adjustment
  • Easy Conversion
  • Precision Control of Low-Pressure Settings
  • Corrosion Resistance

Body Sizes

  • 3/4 or 1-inch (DN 20 or 25)

Maximum Allowable Inlet (Positive) Pressure

  • 150 psig (10,3 bar)

Maximum Outlet (Casing) Pressure

  • Full Vacuum

Maximum Emergency Outlet Pressure to Avoid Internal Parts Damage

  • 150 psig (10,3 bar)

Spring Case Connection

  • 1/4-inch NPT screwed

Orifice Size

  • 1/4-inch (6,4 mm) or 1/2-inch (12,7 mm)

Pressure Registration

  • Type Y690VB: Internal
  • Type Y690VBM: External

Material Temperature Capabilities

  • Nitrile (NBR): -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
  • Ethylenepropylene (EPDM): -20 to 300°F (-29 to 149°C)
  • Fluoroelastomer (FKM): -20 to 300°F (-29 to 149°C)

Type Y692VB Vacuum Breaker

The Y692VB Series vacuum breakers are used in applications where an increase in vacuum must be limited. An increase in vacuum (decrease in absolute pressure) beyond a certain value registers on the diaphragm of the Y692VB Series, moving the disk away form the seat. This permits atmosphere or a positive pressure to enter the system and restore the controlled vacuum to its original pressure setting.

Specs

Features

  • Precision Control of Low-Pressure Settings
  • Corrosion Resistance
  • Tamper-Resistant Adjustment

Body Sizes and End Connection Styles

  • Cast Iron
    1-1/2-inch (DN 40) body size NPT end connection
    2-inch (DN 50) body size NPT or 125 FF end connections
  • Steel or Stainless Steel
    1-1/2 or 2-inch (DN 40 or 50) body size NPT, SWE, 150 RF, 300 RF, or PN 16/25/40 end connections
  • Hastelloy C
    1-1/2 or 2-inch (DN 40 or 50) body size 150 RF end connections

Pressure Registration

  • Y692VB: Internal
  • Y692VBM: External

Maximum Allowable Inlet Pressure

  • 1-3/16-inch (30,2 mm) Orifice: 13 psig (0,9 bar)
  • 3/4-inch (19,1 mm) Orifice: 30 psig (2,1 bar)

Maximum Outlet (Casing) Pressure

  • 8 psig (0,55 bar) vacuum

Vacuum Control Pressure Ranges

  • 1-inch w.c. to 3 psig (2 to 207 mbar) in six ranges

Temperature Capabilities

  • Nitrile: -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
  • Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)
  • Ethylenepropylene (EPDM): -20 to 275°F (-29 to 135°C)
  • Silicone: -40 to 300°F (-40 to 149°C)

Vacuum Regulators

Type Y695VR Vacuum Regulator

The Y695VR Series vacuum regulators are used where a decrease in vacuum must be limited. A decrease in vacuum (increase in absolute pressure) on the diaphragm moves the disk away from the seat, allowing a higher vacuum source to return the system to the setpoint.

Specs

Features

  • Precision Control of Low-Pressure Settings
  • Corrosion Resistant Materials
  • Rugged Construction
  • Wide Material Selection

Body Sizes and End Connection Styles

  • Ductile Iron
    3/4 or 1-inch (DN 20 or 25) body size NPT end connection
  • Stainless Steel
    3/4 or 1-inch (DN 20 or 25) body size NPT, SWE, 150 RF, 300 RF, or PN 16/25/40
  • Hastelloy C
    3/4 or 1-inch (DN 20 or 25) body size 150 RF end connections

Flow Coefficients

  • Wide-Open Cg: 120
  • Wide-Open Cv: 3.43
  • C1: 35

Pressure Registration

  • Y695VR: Internal
  • Y695VRM: External

Maximum Control Pressure

  • Full Vacuum

Maximum Downstream Pressure

  • Full Vacuum

Vacuum Control Pressure Range

  • 0 to 13 psig (0 to 0,88 bar) in six ranges

Temperature Capabilities

  • Nitrile: -20 to 180°F (-29 to 82°)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°)

Y696VR Series Vacuum Regulator

The Y696VR Series vacuum regulators are used where a decrease in vacuum must be limited, such as between a tank and vacuum source to control vacuum in a tank. A decrease in vacuum (increase in absolute pressure) on the diaphragm moves the disk away from the seat, allowing a higher vacuum source to return the system to the setpoint.

Specs

Features

  • Precision Control of Low-Pressure Settings
  • Installation Adaptability
  • Wide Material Selection
  • High Capacity
  • Corrosion Resistant Materials

Body Sizes and End Connection Styles

  • Cast Iron
    1-1/2 or 2-inch  (DN 40 or 50) bodies with NPT end connections
  • Steel or Stainless Steel
    1-1/2 or 2-inch (DN 40 or 50) bodies with NPT, SWE, 150 RF,  300 RF or PN 16/25/40 end connections
  • Hastelloy C
    1-1/2 or 2-inch (DN 40 or 50) bodies with NPT, 150 RF or 300 RF

Maximum Control Pressure

  • Full Vacuum

Maximum Downstream Pressure

  • Full Vacuum

Vacuum Control Pressure Ranges

  • 1-inch w.c. to 3 psig (2 mbar to 0,21 bar) in six ranges

Pressure Registration

  • Type Y696VR: Internal
  • Type Y696VRM: External

Temperature Capabilities

  • Nitrile (NBR): -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
  • Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)
  • Ethylenepropylene (EPDM):  -20 to 275°F (-29 to 135°C)
  • Silicone (VMQ): -40 to 300°F (-40 to 149°C)

Approximate Shipping Weights

  • Cast Iron:  45 pounds (20 kg)
  • Steel, Stainless Steel, or Hastelloy C:  57 pounds (26 kg)

Volume Booster

2625 and 2625NS

Volume booster used in conjunction with a positioner on a throttling control valve to increase stroking speed. The booster incorporates fixed deadband, soft seat construction and an integral bypass restriction to eliminate positioner saturation problems that can occur with volume boosters that do not have these features. Fast response. Adjustable response. Efficient operation.