Model JA SIL 3 Rated

Model JA SIL 3 Rated

The Model JA is an inline valve that holds a bubble-tight, open position until flowing pressure acting on the unbalanced stem area puts an axial force on the pin. At set point, the pin buckles and the valve closes for a bubble-tight seal. This model isolates pressure to prevent downstream damage to equipment and proves it is environmentally friendly by eliminating air and ground pollution common with conventional relief valves.

Model JA SIL 3 Rated

Set Pressure: 25-3,750 Psi
Accuracy: + / – 5%
Connections: Standard flange connections available.
Seals: Available for high & low temperatures, viton standard.
Standard Materials: Body mild steel with stainless steel trim, other materials optional.

SIL Scope

Flange Sizes: 3” – 10”
Pressure Ranges: 50 – 2500 psi*

*Varies depending on size and flange combination



The Model J-A SIL 3 Rated isolation valve closes at set pressure to prevent damage to downstream equipment from excess pressure including meter houses and line transitions.

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