Differential / Bias Regulators

Pressure Reducing Regulators

Relief Valve / Backpressure Regulators

Pressure Reducing Regulators

Relief Valves / Backpressure 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
  • C130.4

Temperature Capabilities

  • Nitrile: -20° to 180°F (-29° to 82°C)

Type 75A Pressure Reducing Regulator

The Type 75A regulator is designed to reduce domestic or industrial water pressure, thus protecting plumbing fixtures and meters from high pressure surges. The Type 75A is self-contained, requiring no external control line for operation. Downstream pressure is directly registered under the diaphragm. As the downstream pressure increases, the diaphragm force overcomes the spring compression, causes the valve disk to rise, and reduces flow through the regulator.

Specs

Features

  • High Capacity
  • Compact, Rugged Construction
  • Easy In-Line Maintenance
  • Corrosion Resistance


Body Size and End Connection Styles

  • 1/2, 3/4, 1 and 1-1/2 (DN 15, 20, 25 and 40) with integral cast seats
  • 2 and 2-1/2-inch (DN 50 and 65) with threaded-in seats

Pressure Registration

  • Internal

Maximum Inlet Pressure

  • 200 psig (13,8 bar)

Maximum Outlet (Casing) Pressure

  • 10% above spring setting, or 5 psig (0,34 bar) above setting, whichever is greater

Outlet Pressure Range

  • 20 to 80 psig (1,4 to 5,5 bar)

Temperature Capabilities

  • -20 to 150°F (-29 to 66°C)

Type 92W Pressure Reducing Regulator

The Type 92W pilot-operated, pressure reducing regulator is used in applications that require close control and high capacity. This dependable regulator is piston actuated for better performance in high cycle applications.

Specs

Features

  • ANSI Class IV Shutoff
  • Easy Installation
  • Easy, In-Line Maintenance
  • Application Flexibility

Body Size and End Connection Styles

  • Cast Iron Body
    • 1, 1-1/2, and 2-inch (DN 25, 40 and 50) body size NPT end connections
    • 1, 2, 3 and 4-inch (DN 25, 50, 80 and 100) body size 125B FF or 250B RF flanged end connections
    • 1-1/2 and 2-1/2 (DN 40 and 65) body size 125B FF or 250 RF flanged end connections
  • Stainless Steel or Steel Body
    • 1, 1-1/2 and 2-inch (DN 25, 40, and 50) body size NPT end connections
    • 1, 2, 3 and 4-inch (DN 25, 50, 80 and 100) body size 150 RF, 300 RF, or PN 16/25/40 end connections
    • 1-1/2 and or 2 1/2-inch (DN 40 and 65) body size 150 RF or 300 RF flanged
    • 6 x 4(1) body size 300 RF flanged end connections

      (1)This is a 4-inch WCB steel body with 6-inch 300 RF flanged end connection

Temperature Capabilites

  • Cast Iron: -40 to 406° F (-40 to 208°C)
  • Stainless Steel or Steel: -20 to 650°F (-29 to 343°C)


Maximum Inlet Pressure

  • Cast Iron: 250 psig (17,2 bar)
  • Stainless Steel or Steel: 300 psig (20,7 bar)

Outlet Pressure Ranges

  • 2 to 250 psig (0,14 to 17,2 bar) in several ranges for each pilot

Differential Pressures

  • Maximum: 150 psig (10,3 bar) or body rating, whichever is lower
  • Minimum: 20 psig (1,4 bar)

Pressure Registration

  • External

Approximate Shipping Weights

  • 1-inch (DN 25): 32 lbs / 15 kg
  • 1 1/2-inch (DN 40): 44 lbs / 20 kg
  • 2-inch (DN 50): 55 lbs / 25 kg – 67 lbs / 30 kg
  • 2 1/2-inch (DN 65): 90 lbs / 41 kg
  • 3-inch (DN 80): 115 lbs / 52 kg
  • 4-inch (DN100): 165 lbs / 75 kg

Type 92C Self-Powered Control Valve

The Type 92C regulator is a cost effective pressure reducing regulator used in steam service. This regulator is available with a Type 6392 pilot or without a pilot for use as a pressure-loaded regulator. The pilot-operated version uses inlet pressure as the operating medium; no separate air supply is required. The pressure-loaded version is used where remote adjustment of the regulator pressure setting is required.

Specs

Features

  • Soft Seats Available for Tight Shutoff
  • Outlet Equals Inlet Pressure Ratings
  • Ease of Installation
  • In-Line Maintenance


Body Size and End Connection Styles

  • 1/2, 3/4, or 1-inch (DN 15, 20 or 25) body size NPT

Pressure Registration

  • Outlet pressure registers under the main valve diaphragm through a pitot tube in the main valve and (for pilot-operated regulators) under the pilot diaphragm through a downstream control line.

Maximum Inlet Pressures

  • Cast Iron: 250 psig (17,2 bar)
  • Steel: 300 psig (20,7 bar)

Outlet Pressure Ranges

  • 5 to 150 psig (0,3 to 10,3 bar)

Maximum Temperature Capabilities

  • Cast Iron: 406° F (208° C)
  • Steel: 500° F (260° C)

Approximate Weight

  • 1/2, 3/4, and 1-inch: Cast Iron and Steel with Pilot (20 lb / 9.1 Kg)
  • 1/2, 3/4, and 1-inch: Cast Iron and Steel without Pilot (16 lb / 7.3 Kg)

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)

Types 627W and 627WH Pressure Reducing Regulators

The Type 627W and Type 627WH are direct-operated pressure reducing regulators for liquid service. They are available in 3/4, 1, and 2-inch body sizes and in construction materials to match liquid applications.

Specs

Features

  • In-Line Maintaince
  • Tight Shutoff Capability
  • Versatility
  • Rugged Construction
  • Stainless Steel Construction

Body Size and End Connection Styles

  • Ductile Iron
    • 3/4, 1-inch (DN 25), or 2-inch (DN 50) body size NPT screwed end connections
    • 1-inch (DN 25)or 2-inch (DN 50) body size NPT screwed end connections
  • Steel or Stainless Steel
    • 3/4, 1-inch (DN 25), or 2-inch (DN 50) body size NPT screwed end connections
    • 1-inch (DN 25)or 2-inch (DN 50) body size 150 RF, 300 RF, 600 RF, or PN 16/25/40

Maximum Inlet Pressure

  • 627W: 550 psig (37,9 bar) with Nylon Disk or 350 psig (24,1 bar) with Elastomer Disk
  • 627WH: 900 psig (62,1 bar) with Nylon Disk or 700 psig (48,3 bar) with Elastomer Disk

Maximum Outlet (Casing) Pressure

  • 627W
    • Ductile Iron: 465 psig (32,0 bar)
    • Steel or Stainless Steel: 1500 psig (130 bar)
  • 627WH
    • Steel or Stainless Steel: 1500 psig (130 bar)

Outlet Pressure Ranges

  • 627W: 10 to 150 psig (0,69 to 10,3 bar) in four ranges
  • 627WH: 140 to 500 psig (9,7 to 34,5 bar) in two ranges

Pressure Registration

  • Internal or External

Types 655 and 655R Actuators

The Type 655 and 655R direct-acting diaphragm actuators, in combination with Fisher valve bodies, provide control for a wide variety of pressure regulation applications. The Type 655 is used for pressure reduction service on push-down-to-close bodies, and the Type 655R is primarily for pressure relief use on push-down-to-open bodies. This actuator can be used with Fisher E-body control valves.

Specs

Features

  • Severe Service Capability
  • Operation Versatility
  • Service Versatility
  • Broad Actuator Spring Selection
  • Fast Response
  • Remote Sensing
  • High Temperatures


Maximum Rated Travels

  • Sizes 3A and 4A: 7/16-inch (11,1 mm) plus 1/8-inch (3,2 mm) for seating
  • All other sizes: 3/4-inch (19,1 mm) plus 1/8-inch (3,2 mm) for seating


Actuator Temperature Capabilities

  • Up to 180°F (82°C) with standard diaphragm material. For fluid and temperature capabilities of nonstandard diaphragm material, please consult your Northeast Controls Sales Engineer.

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 Capabilites

  • 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 Capabilites

  • 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)

Relief Valves / 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 414 Relief Valve / Backpressure Regulator

The Type 414 pilot-operated relief valve/backpressure regulator is used for high-pressure nonaqueous liquid applications. The construction is suitable where pressures on the valve outlet will be essentially atmospheric.

They Type 414-6305B is used in nonaqueous applications where the pilot exhaust will be vented though the main valve outlet piping into a pressurized line.

Specs

Features

  • High Capacity
  • Excellent Reseating Capability
  • Minimal-Bleed Pilot
  • Tamper-Resistant
  • High Pressure

Body Size and End Connection Styles

  • 1, 2, 3, 4 or 6-inch (DN 25, DN 50, DN 80, DN 100, or DN 150) body size with ANSI Class 150 RF, 300 RF, 600 RF, or PN 16/25/40 flanged end connections.

Maximum Relief (Inlet) Pressure

  • 1480 psig (102 bar) or body rating limit, whichever is lowest


Relief Set Pressure Range

  • 100 to 1200 psig (6,9 to 82,7 bar) in three ranges

Minimum Pressure Drop

  • 100 psi (6,0 bar)

Pressure Registration

  • External

Temperature Capabilites

  • Nitrile (NBR)O-Rings and Urethane Wiper Ring: -20 to 180°F (-29 to 82°C)
  • Fluoroelastomer (FKM) O-Rings and Urethane Wiper Ring: 0 to 180°F (-18 to 82°C)
  • Fluoroelastomer (FKM) O-Rings and TFE Wiper Ring: 0 to 350°F (-18 to 177°C), limited to 180°F (82°C) for hot water

Types 655 and 655R Actuators

The Type 655 and 655R direct-acting diaphragm actuators, in combination with Fisher valve bodies, provide control for a wide variety of pressure regulation applications. The Type 655 is used for pressure reduction service on push-down-to-close bodies, and the Type 655R is primarily for pressure relief use on push-down-to-open bodies. This actuator can be used with Fisher E-body control valves.

Specs

Features

  • Severe Service Capability
  • Operation Versatility
  • Service Versatility
  • Broad Actuator Spring Selection
  • Fast Response
  • Remote Sensing
  • High Temperatures


Maximum Rated Travels

  • Sizes 3A and 4A: 7/16-inch (11,1 mm) plus 1/8-inch (3,2 mm) for seating
  • All other sizes: 3/4-inch (19,1 mm) plus 1/8-inch (3,2 mm) for seating


Actuator Temperature Capabilities

  • Up to 180°F (82°C) with standard diaphragm material. For fluid and temperature capabilities of nonstandard diaphragm material, please consult your Northeast Controls Sales Engineer.

Types 1808 and 1808A Relief Valve or Backpressure Regulator

The Type 1808 globe-style and 1808A angle-style pilot-operated backpressure regulators or relief valves are economical, compact devices used in gas or liquid service to maintain pressure on oil and gas separators, and in pressure relief applications in gas distribution systems.

Specs

Features

  • Simple, Reliable Design
  • Compact and Lightweight
  • Convenient Installation in any Position
  • Quick Disassembly
  • Optional External Registration for Reduced Buildup
  • High Capacity

Body Size and End Connection Style

  • 2-inch NPT screwed

Maximum Relief (Inlet) Pressure

  • 150 psig (10,3 bar), including buildup

Relief Set Pressure Range

  • 5 to 125 psig (0,34 to 8,6 bar)

Wide-Open Sizing Coefficients
Type 1808: Cg 1410, Cv: 40.1, C1: 35.2
Type 1808A: Cg: 1808, Cv: 51.7, C1: 35

Temperature Capabilites

  • -20 to 180°F (-29 to 82°C)

Pilot Tubing and Connections

  • 1/4-inch NPT with or without P590 Series Filter

Options

  • Upstream control line construction

Approximate Weight

  • 1808: 22 pounds (10 kg)
  • 1808A: 25 pounds (11 kg)