Dual Plate Check Valve – API 594/6D, Wafer/Flanged Ends, Class 150–2500LB

The Dual Plate Check Valve by TEJI is engineered for efficient, space-saving non-return applications across industrial, water treatment, environmental, and building utility systems. Designed to prevent reverse flow, this valve incorporates a dual plate swing mechanism supported by a spring, ensuring quick closure with minimal pressure drop.

The compact one-piece body enhances structural strength, while the split disc construction allows for simple maintenance and component replacement. The sealing surfaces can be welded with wear-resistant alloy or lined with rubber, enabling compatibility with a wide range of mediums and service conditions.

Conforming to API 594, API 6D, and ISO 14313, this check valve supports Class 150 to 2500LB pressure ratings and is suitable for both horizontal and vertical pipeline installations. It is widely used in clean water, steam, gas, and chemical systems, particularly where reliable backflow prevention is critical.

Specifications:

– Valve Type: Dual Plate Spring-Assisted Check Valve
– Size Range: 2” to 24” (DN50 to DN600)
– Pressure Class: Class 150 to 2500LB (PN1.0 to PN42.0 MPa)
– Temperature Range: Based on material selection
– Body Material Options: WCB (A105), LCB (LF2), CF8 (F304), CF8M (F316), CF3 (F304L), CF3M (F316L), etc.
– End Connections: Wafer and Flanged
– Disc Type: Dual plate with spring-assisted swing
– Design Standards: API 594, API 6D, ISO 14313
– Face-to-Face: ASME B16.10, EN558
– Pressure-Temperature Ratings: ASME B16.34
– Inspection & Testing: API 598, EN12266
– Seat Options: Welded alloy sealing, rubber-lined sealing
– Construction: One-piece body with renewable split disc
– Installation: Horizontal or vertical pipelines
– Applications: Water supply, drainage, steam lines, chemical media, and clean process lines
– Features:
 – Compact, lightweight design
 – Rapid disc closure
 – Low pressure drop
 – Long service life
 – Easy to install and maintain

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com