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Combustion 911
Supplying and Serving the Combustion Industry
an Olsträd Engineering Company

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Overpressure Shut-off Valve JSAV 50 to 100Regulator JSAV Overpressure Shut-off Valve

  • Senses excess pressure downstream from the pressure regulator
  • Broad adjusting range for the response pressure
  • Low pressure loss
  • Vent pipe may not be required
  • CE certified models available
  • Requires use of VSBV safety relief valve

Description

Use the JSAV to protect against high pressure for valves downstream from a gas regulator. The gas supply is shut off if the downstream pressure exceeds the spring setpoint of the over pressure shut-off valve. It is suitable for natural gas, clean coke oven gas, and LPG.

The VSBV is a safety relief valve that reduces temporary pressure surges caused by fluctuations in system operation downstream from the pressure reducing regulator. It is required for use with the Regulator JSAV Overpressure Shut-off Valve.

Ordering Information

Model and Description Model Connection Pressure Test Point Max inlet pressure Price Cart
JSAV 25TN40-0
Connection: 1″ NPT internal thread; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 25TN40-0 1″ NPT internal thread No 60 psig (4 bar)
JSAV 40TN40-3
Connection: 1½″ NPT internal thread; Pressure Test point: Screw at Inlet and Outlet; Max Inlet pressure: 60 psig (4 bar)
JSAV 40TN40-3 1½″ NPT internal thread Screw at Inlet and Outlet 60 psig (4 bar)
JSAV 50TA40-0
Connection: 2″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 50TA40-0 2″ ANSI flange No 60 psig (4 bar)
JSAV 80TA40-0
Connection: 3″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 80TA40-0 3″ ANSI flange No 60 psig (4 bar)
JSAV 100TA40-0
Connection: 4″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 100TA40-0 4″ ANSI flange No 60 psig (4 bar)

All JSAV models are set at the factory to 1.7 psig (120 mbar).

For all other configurations Contact Combustion 911

Accessories

Model and Description Price Cart
JSAV 25/40 SPRING 01
Spring 7-24 " w.c. (18-60 mbar), black
JSAV 25/40 SPRING 03
Spring 0.9-1.6 psi (60-110 mbar), red
JSAV 25/40 SPRING 04
Spring 1.5-3 psi (100-210 mbar), d-green
JSAV 25/40 SPRING 05
Spring 2.9-5.1 psi (200-350 mbar), yellow
JSAV 25/40 SPRING 06
Spring 4.1-7.3 psi (280-500 mbar), white
JSAV 50-100 SPRING 01
Spring 0.5-1 psi (35-70 mbar), l-blue
JSAV 50-100 SPRING 02
Spring 0.9-2.5 psi (60-170 mbar), red/brown
JSAV 50-100 SPRING 03
Spring 1.7-3.2 psi (120-220 mbar), violet
JSAV 50-100 SPRING 04
Spring 2.8-5.8 psi (190-400 mbar), orange/yellow
JSAV 50-100 SPRING 05
Spring 4.4-8 psi (300-550 mbar), orange/green

Comes standard with purchase of corresponding JSAV model.

For all other parts Contact Combustion 911

Jump to JSAV model page

Model:

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  All Products
JSAV Model
Pressure test point screw and inlet and outlet
Adjusting Springs for JSAV 25 and 40
Adjusting Springs for JSAV 50-100
JSAV 25TN40-0
Price:
Connection: 1″ NPT internal thread; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 40TN40-3
Price:
Connection: 1½″ NPT internal thread; Pressure Test point: Screw at Inlet and Outlet; Max Inlet pressure: 60 psig (4 bar)
JSAV 50TA40-0
Price:
Connection: 2″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 80TA40-0
Price:
Connection: 3″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 100TA40-0
Price:
Connection: 4″ ANSI flange; Pressure Test point: No; Max Inlet pressure: 60 psig (4 bar)
JSAV 25/40 SPRING 01
Price:
Spring 7-24 " w.c. (18-60 mbar), black
JSAV 25/40 SPRING 03
Price:
Spring 0.9-1.6 psi (60-110 mbar), red
JSAV 25/40 SPRING 04
Price:
Spring 1.5-3 psi (100-210 mbar), d-green. Shipped with JSAV 25/40 models.
JSAV 25/40 SPRING 05
Price:
Spring 2.9-5.1 psi (200-350 mbar), yellow
JSAV 25/40 SPRING 06
Price:
Spring 4.1-7.3 psi (280-500 mbar), white
JSAV 50-100 SPRING 01
Price:
Spring 0.5-1 psi (35-70 mbar), l-blue
JSAV 50-100 SPRING 02
Price:
Spring 0.9-2.5 psi (60-170 mbar), red/brown. Shipped with JSAV 50-100 models.
JSAV 50-100 SPRING 03
Price:
Spring 1.7-3.2 psi (120-220 mbar), violet
JSAV 50-100 SPRING 04
Price:
Spring 2.8-5.8 psi (190-400 mbar), orange/yellow
JSAV 50-100 SPRING 05
Price:
Spring 4.4-8 psi (300-550 mbar), orange/green

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