China Butterfly Valve-DIN PTFE Butterfly Valve

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

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                             PTFE/F46/PFA/NYLON

    Sealing bush                Silica gel/NBR/EPDM

5. Bushing                        High polymer

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.