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SJS Series Mechanical Pump Regulator

SJS Series is excellent for use on dual mechanical pump seal systems to help control fugitive emissions, prolong seal life, increase safety, and reduce seal maintenance costs. The SJS is commonly used with the 42MW Series instrument isolator.

Pressure Rating (psig / bar)
Maximum Inlet Pressure: 500 / 34.5
Maximum Reference Pressure: 400 / 27.6
Maximum Outlet Pressure – Bias & Reference: 500 / 34.5
Bias Pressure Range: 0-100 / 0-6.9
Body Material
316 Stainless Steel
Seat Material
Pressure Reducing: Teflon®
Backpressure: Vespel®
Friction Sleeve Material
Inner: Teflon®
Outer: 316 Stainless Steel
Operating Temperature
-40°F to 165°F / -40°C to 74°C
Port Size & Type
1/4 NPTF
Flow Capacity
Cv = 0.12
Weight (without gauges)
2 lbs / 0.9 kg