Wafer Type · Dual Plate · Torsion Spring · API 594

Wafer Dual Plate Check Valves for Compact, High-Speed Backflow Prevention

150LB~900LB, sizes 2″ to 60″ (DN50~1500mm), available in WCB, CF8, CF8M per ASME B16.34 and API 594 — short face to face, horizontal or vertical installation, quick-close dual torsion spring design.

Overview

Wafer dual plate check valve is one type of check valve with butterfly type disc, which can be mounted on the piping end as exhaust valve. Wafer type dual plate check valve is with two torsion springs added to each of pair valve plates, which close the plates quickly and automatically when the mediums flow back, preventing the medium from flowing back. The wafer butterfly check valve can be mounted onto both horizontal and vertical direction pipelines. Flowspec Luokai can manufacture the wafer dual plate check valve in accordance with ASME B16.34 and API594. Just feel free to contact us now to get best prices. 30 years of experience. High quality. Big stock. Fast delivery.

1. Features

Small in size, light weight, compact structure, easy maintenance
Quick action prevents of medium back flow
Short face to face and good rigidity
Easy installation, can be mounted horizontally and vertically
Tightly sealed, without leakage
Safe and reliable operation, high interference-resistance

2. Technical Specifications

150LB / 300LB / 600LB / 900LB
Size: 2″ ~ 60″ (DN50~1500mm)
Materials: A216 WCB, S.S.304 (CF8), S.S.316 (CF8M)
Applicable medium: water, sewage, sea water, air, steam, oils, food, corrosive liquids
Applicable temperature: -196℃~+540℃ (higher temperature is available upon request)