China Butterfly Valve-Resilient Seat Butterfly Valve With Worm Gear

    China Butterfly Valve Resilient Seat Butterfly Valve With Worm GearChina Butterfly Valves-Resilient Seat Butterfly Valve With Worm Gear，This  China butterfly valve has the function of automatically compensating for the thermal expansion and contraction of pipes for easy loading and unloading. It is used on industrial pipes of petroleum, chemical, power, paper making, water supply and drainage and municipal construction with the temperature below 425 ℃ and the nominal pressure below 1.6MPa The best device for regulating flow and breaking fluid.

    As a well-known brand manufacturer of butterfly valve in China, China Butterfly Valves has become the best choice for customers all over the world.

Nominal Diameter:         DN40–DN1200   

Nominal Pressure:         10Bar/16Bar   

Design Standard:           BS EN593/BS5155/API609/DIN3354   

FTF Dimension:              ISO 5752-20/BS EN558-20/API609   

Flange Connection:       ASME B16.1 Class125/ASME B16.5 CL150/ASME B16.47 CL150/

                                         DIN 2501 PN10-16/EN1092 PN10-16/JIS10K  

Inspection and Test:      EN12266-1/API 598/ISO5208/JIS B2003   

Material List:                    

1. Body:

    Cast Iron                       ASTM A126 CL.B/ DIN1691 GG25   

    Ductile Iron                    ASTM A536 60-40-18/ DIN1693 GGG40   

    Carbon  Steel                ASTM A216 WCB   

    Stainless  Steel             ASTM A351 CF8/CF8M   

    Bronze AL-Bronze         ASTM B148 C954   

2. Disc:

    Ductile Iron                    ASTM A536 60-40-18/ DIN1693 GGG40   

    Carbon Steel                 ASTM A216 WCB   

    Stainless Steel              ASTM A351 CF8/CF8M   

    Bronze AL-Bronze         ASTM B148 C954   

    Coating                         Nickelplate/Epoxy/EPDM/VITON/Nylon   

3. Stem:

    Stainless Steel              ASTM A182 304/316/410   

    Alloy                              Monel K500   

4. Seat:

    Elastomer                     Working temperature   

    EPDM                           -45℃-135℃   

    NBR                             -10℃-80℃   

    VITON                          -20℃-150℃   

    PTFE                           -10℃-150℃   

5. Bushing:

    PTFE   

    Bronze   

6. Pin:

    Stainless Steel               ASTM A182 304/316/410   

    Alloy                               Monel K500   

Structure and Feature:

1. Bi-directional tightness.   

2. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.

3. Simple and compact construction, quick 90 degree on-off operation.

4. Minimized operating torque, energy saving.

5. Flow curve tending to straight line. Excellent regulation performance.

6. Long service life. Standing the test of tens of thousands opening/closing operations.

7. Bubbles-tight sealing with no leakage under the pressure test.

8. Wide selection of materials, applicable for various medium. 

China Butterfly Valves-Resilient Seat Butterfly Valve With Worm Gear，TJL indusry group is a professional China valve manufacturer, Provide China Butterfly Valves, Welcome to contact us by Email：info@tjlindustry.com

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