Hebei Huahui Valve Co., Ltd

Butterfly valve, also called flap valve, is a regulating valve with a relatively simple structure. Today,   Butterfly Valve Supplier   will tell you about the installation and maintenance of butterfly valves. Butterfly Valve 1. Before valve installation, the following work should be completed: A. Check carefully whether the valve usage is consistent with its performance specifications. B. Check the valve channel and sealing surface for debris, and remove it in time. C. After opening the box, the valve must be installed in time. Do not loosen any fastening screws on the valve at will. D. Hard seal and soft seal are equipped with standard flanges. E. Before installation, the installation and commissioning personnel should carefully read the operating instructions, pneumatic and electric instructions, and strictly follow the instructions and wiring diagrams for installation, operation, debugging and wiring. F. When the user requires pressure test, be sure to use the flanges at bo...

NRS Resilient seated gate valve Gland type DIN3352 F5 Product Description DIN3352 F5 Iron Gland Type NRS Resilient Seat Gate Valve  DN50-DN600  cast iron gate valve  Features 1. The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. 2. Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. 3. Stainless steel stem with rolled threads for high strength. 4. The valve can replace stem seals under pressure. 5. Full bore. 6. Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.  cast iron gate valve Standard Design standard DIN3352 F5, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 15 Hydraulic test standard EN1074-1 and 2 /EN12266   Seat:1.1*PN(in ...

BS3464 Metal Sluice Seat Gate Valve Product Description Sluice Gate Valve | BS CAST IRON NON-RISING STEM,METAL SEATED,GATE VALVE BS3464 PN16 What are Sluice Gate Valves? The sluice gate valve is a true end-of-pipe valve, designed to return water with minimal leakage from the drain pipe to the sewage tank to the distribution box; the gate is a true end-of-pipe valve, with the smallest leakage in various applications The back and forth water flows from the drain pipe to the sewage tank and then to the distribution tank. Sluice Gate Valves features 1. Nodular cast iron design. Contrary to manufacturing parts, our castings are less likely to fail over time. 2. Independent assembly. Our unique assembly does not require guide rails to guide the disc, so installation is easy. 3. High fixed pressure tolerance. Since the rated pressure of the gate is 50psi, its gate performance is better than the industry standard. Each gate is designed with finite element analysis function, which can measure s...