Red Heavy Duty Emergency Shutdown Valve - Pneumatic Flow Control 6-36" Size ANSI 150-2500 Class Fast Action
Price:
EXW Fob shanghai
MOQ:
1
Delivery Time:
6-8 weeks
Brand:
veson
Product Description
Red Heavy Duty Emergency Shutdown Valve Overview
The emergency shutdown valve (ESDV) is a critical safety component designed to immediately shut off fluid flow in pipelines during hazardous situations. Also known as SDV, ESV, or ESD, this pneumatic flow control valve provides fast-acting protection for industrial fluid systems.
Key Safety Features
- Tight Shut-Off: Zero to minimum leakage with seat testing compliance to API 508 and ISO 5208 standards
- Fire-Safe Design: Fire-rated construction meeting API 607 for soft-seated valves or API 6FA/6D standards
- Fast Action: Rapid closure within 10 seconds of activation, with 1-2 seconds per inch of valve size
- Minimum Flow Disturbance: Equal percentage characteristic for precise flow control with minimal process turbulence
- Fail-Safe Operation: Pneumatic/hydraulic spring-return actuator ensures closure during power failure
- Manual Field Reset: On-site manual operation and reset capability for safety verification
Technical Specifications
Valve Configuration
Trunnion mounted full port ball valve with side entry forged body construction
Performance Parameters
| Parameter | Specification |
|---|---|
| Size Range | 6" - 36" |
| Pressure Ratings | ANSI Class 150 - 2500 |
| Shut-Off Class | Soft seat: Class VI | Metal seat: Class V |
| Closing Time | < 2 seconds (size-dependent) |
| Actuator Type | Single-acting, spring return pneumatic |
| End Connections | RFFE, RTJ, weld end |
Operational Modes
Full Open Position - Normal Operation
The full bore ball valve design provides minimal pressure differential and process fluid turbulence, functioning virtually like a straight pipe section during normal operations.
Full Closed Position - Emergency Situation
When setpoint pressure is exceeded, the ESDV fully closes within seconds, providing tight shutoff with its double-seated design to prevent hazardous escalation.
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Company
Veson Valve Ltd.
Contact Person
Judy.Zhao