Main Features: The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation...
Type Available: Wafer type
Shaft: 416, 410,stainless steel.
Sealing: NBR, EPDM or customized.
Materials Standard:API DIN and etc.
Pressure Range: From PN1.0 to 1.6 (150LB)
Sizes Available: DN25mm to DN1200mm (1" to 48")
Body: Cast iron, ductile iron（GGG25/GGG20/GGG50）
Disc: Ductile iron (nickel coated), GGG25/GGG20/GGG50/aluminum bronze, stainless steel.
Basic Design: API609, BS5155, EN593, MSS SP-67
Face to Face Dimension: API609, DIN3202K1, ISO 5752, BS5155, EN558
Flanged End Dimension:AS 2129 "D", "E",BS 10 "D" "E",JIS 5K/10K/16K,ASME B16.1 125LB/ ASME B16.5 150LB,BS4504 PN6/PN10/PN16,DIN2501 PN6/PN10/PN16,ISO 7005 PN6/PN10/PN16.
Top Flange: ISO5211 or customized.
Suitable Temperature: -15℃-150℃
Suitable Mediums: Fresh or waste water, sea water, sewage, vapor, air, oil, etc.
The main characteristics:
1 Small in size and light in weight...Easy installation and maintenance. It can be mounted wherever needed.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow cure tending to straight line. Excellent regulation performance.
5. Long service life. Standing the test of tens of thousands opening/closing operations.
6. Bubbles-tight sealing with no leakage under the pressure test.
7. Wide selections of materials, applicable for various medium.
8. Stem and disc are connected by means of pinless structure with more reliable performance.
9. Disc seat and body of non backed slim-disc butterfly valve are connected by frameless structure to overcome leakage on the connecting position of flange sealing surface.
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of Cast Iron body Butterfly Valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.