Wafer Check Valve

Product Overview: The API 594 Wafer Check Valve (Dual Plate / Double Clip Design) is a compact, high-performance non-return valve engineered to replace traditional bulky flanged check valves. Designed with a short face-to-face structural length and lightweight wafer body, this valve dramatically simplifies installation, maintenance, and space allocation across high-pressure piping systems, wellheads, and flowlines from 2,000 PSI to 10,000 PSI.

Key Features & Advantages:

• Compact & Lightweight Design: Shorter lay length and reduced weight minimize piping stresses and installation labor compared to standard flanged valves.

• API 594 Standard Compliance: Manufactured to API 594 dual-plate design guidelines for optimal flow characteristics and reduced water hammer.

• High-Pressure Capability: Built for severe-duty service with pressure ratings ranging from 2,000 PSI up to 10,000 PSI.

• Extreme Temperature Range: Performs reliably across severe operating conditions from -75°F to +250°F (-60°C to +121°C).

• Flexible End Connections & Materials: Available in Raised Face (RF) and Ring Type Joint (RTJ) connections across NACE-compliant material grades (AA to HH).

Technical Specifications:

• Executive Standards: API 594 / API Spec 6A

• Bore / Size Range: 1-13/16" to 4-1/16"

• Pressure Ratings: 2,000 PSI – 10,000 PSI

• Temperature Range: -75°F to +250°F (-60°C to +121°C)

• Body / Trim Materials: Material Classes AA, BB, CC, DD, EE, FF, HH

• Connection Types: Raised Face (RF) & Ring Type Joint (RTJ) Flange Mounting

• Specification & Performance: PSL1 to PSL3 | PR1