Spring Loaded
ModelA21H-16/25/40/64/100-C; A21W-16/25/40/64/100-P/R; A21F-16/25/40-C/P/R
A21H-16/25/40/64/100-C; A21W-16/25/40/64/100-P/R; A21F-16/25/40-C/P/R
Product Overview
A21H valves are used on equipment and pipelines handling air, ammonia, and petroleum gas at operating temperatures below 200°C. A21W valves are used on equipment and pipelines handling corrosive gases or liquids at operating temperatures below 200°C. A21F valves are used on equipment and pipelines handling liquefied gas or petroleum gas at operating temperatures below 80°C. These valves provide overpressure protection.
| Model | Sealing Material | Body Material | Media |
|---|---|---|---|
| A21H | Alloy Steel | WCB, ZG230-450 | Air, ammonia and petroleum gas |
| A21W | Body Material (Integral Seat) | ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti | Corrosive gases or liquids |
| A21F | Fluoroplastics | WCB, ZG230-450 ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti | Liquefied gas and petroleum gas |
Technical Data
Only populated values from this Product record are displayed.
Product Datasheet
Model-specific nominal diameters, thread specifications and corresponding dimensions.
Swipe horizontally to view all dimensions →
Dimensions are reproduced from the supplied source table. Confirm the applicable drawing and units before publication or contractual use.
Operating Context
Request Engineering Review
Share the medium, required capacity, operating and set pressure, temperature, backpressure, connections, materials and applicable certification requirements.
