Payment & Shipping Terms:
custom iron casting,
ductile iron casting
Long service life
Double flange butterfly valve integrated the advantages of eccentric flange butterfly and wafer butterfly valve. Eliminated the defects between them, valve body inner lining Vulcanized rubber. Achieve an perfect seal performance. Widely used in the water supply or drain system of water plant, power plant, steel mill, paper making or chemical industries, along with good adjustment features.
|Ductile Iron(DI), Gray Cast iron(CI), Cast Steel(WCB), Stainless steel(CF8/CF8M)
|Ductile iron nylon coating(N),Plated ductile iron(D), CF8(P), CF8M(R),Aluminum bronze(T)
|EPDM , NBR. PTFE, VITON, EP, EPDM ,EPDM
|416SS 316SS 304SS CS45#coating with Ni,P
Aluminum handle or Malleable iron handle
Matters need attention for installation
1. Pipeline wafer type flange standard should be in accordance with the standard of butterfly valve, dedicated flange of butterfly valve is recommended for wafer type connection flange.
2. Users should check the working conditions if it is accordance with the butterfly valve.
3. Lumen and sealing surface should be cleared up before installation, no waste adhering.
4. Both side of valve seat extruded as seal washer of flange, no need to use seal washer for butterfly valve
5. The butterfly valve could be installed at horizontal, vertical and any other angles of pipelines, and could be used in two-way.
6. The butterfly valve can not be installed at the corners of pipeline, no handstand installation allowed.
7. The butterfly valve must be closed when installing, to assure valve plate not to impact with the pipeline flange.
8. Verify flange welded without defects. Can not weld after installation to avoid to scald rubber articles and antiseptic coatings.
9. For abnormal situations on switching, should check it out, remove faults, do not open or close the valve with external force.
With a dedicated, sophisticated technical team and stable reliable sources, customer satisfaction has always been achieved. Quality is the key element of our commitment to deliver fantastic goods by understanding the customers' needs and solving their problems. Our high standard Management System ensures that customer s' specific requirements are met.
Our goal is to transform GSC into a global, well-known company as a high technology industry accessory supplier within a short time through innovation and perfect service.
GSC is highly recognized by its business partners and customers all over the world and has seen rapid development in many different areas. We will continue to supply high standard products for the mutual benefit of our company and our business partners for a successful future development.