SH4-2 Series
Fast-acting slam shut-off valve for emergency isolation in gas distribution, pipeline protection, and safety shutdown systems.
The SH4-2 Series are fast-acting slam shut-off valves designed for emergency isolation in gas distribution and process piping systems. The valve closes rapidly on detection of over or under pressure conditions, isolating the downstream system from the supply. Spring-loaded design ensures positive closure even on loss of control power. Available with manual reset and remote reset options.
Key Features
- Fast Acting Closure — Rapid closure on over or under pressure detection to protect downstream system.
- Spring Loaded — Spring loaded design ensures positive closure on loss of control power.
- Over & Under Pressure Trip — Trips on both high and low pressure conditions for complete protection.
- Manual Reset — Manual reset standard with optional remote pneumatic or electrical reset.
- Tight Shut-Off — Metal-to-metal seating provides positive shut-off for gas isolation.
Applications
- Gas distribution networks
- Pressure reducing stations
- Pipeline protection
- Industrial gas supply
- Safety shutdown systems
Technical Specifications
| Body Sizes | 1″ to 8″ — ANSI B16.5 Class 150 & 300 |
| Set Pressure Range | 0.5 Barg to 100 Barg (over and under) |
| Closure Time | < 1 second (standard) |
| End Connection | Flanged — ANSI B16.5 |
| Reset | Manual (standard), Remote pneumatic / electrical (optional) |
| Certification | ISO 9001:2015, EN 14382 |