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No Emission WCB Duo Check Valve Wafer Type Fire Safe Design For Hazardous Services

China TEKO Industry Co., Limited certification
China TEKO Industry Co., Limited certification
Dear Peter, Highly appreciate your sound service. The valves have well arrived and looks every well. Regards, Andrea

—— Mr. Andrea Arredondo

Hi, my friend. Finally we got the bidder and nice to cooperate with you.You prefession and quick reaction was the firm support for the business.

—— Mr.Hiep Le Hao



Good da, we just got the appoval from our customer. Your experiences helped a lot in the project. The final drawing is also very professional. Cheers!

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No Emission WCB Duo Check Valve Wafer Type Fire Safe Design For Hazardous Services

No Emission WCB Duo Check Valve Wafer Type Fire Safe Design For Hazardous Services
No Emission WCB Duo Check Valve Wafer Type Fire Safe Design For Hazardous Services

Large Image :  No Emission WCB Duo Check Valve Wafer Type Fire Safe Design For Hazardous Services

Product Details:
Place of Origin: Made in China
Brand Name: TEKO
Certification: CE/PED, API
Model Number: H76X
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: By negotiation
Packaging Details: By export wooden cases
Delivery Time: 15 working days after deposit
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 350 tons per year
Detailed Product Description
Trim Material: Trim5,Tirm8 OR Trim10 Retainerless: Yes
Port Size: 2"-36" Structure: Retainerless Duo Check
Design Standard: API 594 Installation: Vertical Or Horizontal
High Light:

wafer type check valve


wafer swing check valve

Silent Retainerless No Emission WCB Wafer Duo Check Valve For Hazardous Services


The retainerless design means that they do not drill completely through the body of the valve to enable installation of the hinge-pin and stop-pin of a dual-plate check. It eliminats the possibility of outside leakage



Retainerless dual-plate check valves for a broad range of applications.

  • Retainerless valve body; meaning, no penetration through the body wall
  • Fire safe design
  • Self-seating design that reduces dragging along the seat surfaces
  • Lapped seating surfaces that exceed API 598 seat leakage requirements for metal-seated valves
  • An uninterrupted gasket surface
  • Shock bumpers minimize shock-force on internal components
  • Immediately responsive spring design to changes in flow characteristics


Features and benefits


Lightweight and Compact Wafer Design Installs between mating flanges with 10 to 20% the weight of flanged swing checks in popular sizes - Saves money in initial valve cost and provides lower installation cost.
Dual Plate, Flat Seat Design Plate heel is lifted first by design to prevent seat wear. Employs two spring Ioaded plates with flat seats - Gives superior performance and bubbletight shutoff with resilient seats.
Independent Spring Action Maximum deflection of 140°, provides improved valve response and longer life - Saves money with longer valve life and improved system performance by reducing water hammer.
Independent Plate Suspension with Unique Hinge Design (larger sizes) Improves valve response and reduces friction forces by 66% - Further assurances of non-slam performance with faster valve response.
Simple, External Body Geometry Configuration simplifies valve insulation - Saves money.
Variety of Body Designs Available - Lug and Double Flange Provides options to suit application needs - Eases your selection process by utilizing the industry leader as your single source.
Wide Variety of Materials Versatility for many services - Satisfies more application needs.
Flexibility in Installation Position Provides more rigidity than pipe, eliminating concerns of pipe bending loads of flanged valves - Safety against thermal or seismic catastrophes.
Body Strength and Rigidity Some sizes suitable for horizontal or vertical up positions -Simplifies piping design, eliminates constraints that swing checks create.
Retainerless Duo-Chek Design Eliminates Body Penetrations For critical service applications, prevents possible escape of unwanted and/or hazardous materials to atmosphere - Safety in critical services eliminates and/or environmental concerns. Standards in Lug and Double Flange Designs.
Vertical Hinged Design In horizontal position flow allows plates to function freely and full open under lower flow conditions as compared to swing check - Reduces pressure loss, improves dynamic response and eliminates valve chatter.


Contact Details
TEKO Industry Co., Limited

Contact Person: sales

Tel: +8613660157288

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