Hebei Huahui Valve Co., Ltd

Everyone knows that butterfly valves have soft seals and hard seals. Today, butterfly valve manufacturers will tell you whether butterfly valves are more suitable for soft seals or hard seals. Let's learn about them with   Butterfly Valve Supplier . Soft seal: The two sides of the seal pair are made of metal materials on one side, and elastic non-metallic materials on the other side, which is called "soft seal". The sealing performance of the seal is good, but it is not resistant to high temperature, easy to wear, and has poor mechanical properties. Such as: rubber; tetrafluoroethylene, etc. The soft sealing seat is made of non-metallic materials and has certain strength, hardness and temperature resistance. The sealing performance is good, and zero leakage can be achieved, but the service life and temperature adaptability are poor. Hard seal: The two sides of the sealing pair are made of metal materials or other hard materials, which is called "hard seal". This...

As a   Butterfly Valve Supplier , share with you. A butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close and adjust the fluid channel. Today, the butterfly valve manufacturer will take you to understand the applicable places and characteristics of the butterfly valve. Let's learn about it with the editor. "Where are the butterfly valves used?" "Butterfly valves are generally used for various water fluids, such as domestic water, fire water, process water, circulating water, chilled water, sewage, etc.. Butterfly valves can also be used for some powder materials. Butterfly valves cannot be used To adjust the flow rate. It can be used for automatic switching valves." "On official roads with large diameters, butterfly valves are generally used to control flow. For example, on DN1000 pipelines, if gate valves or stop valves are used, how big the valve should be Ah. But butterfly valves are rarely us...

As a   Butterfly Valve Supplier , share with you. A butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close and adjust the fluid channel. Today, the butterfly valve manufacturer will take you to understand the applicable places and characteristics of the butterfly valve. Let's learn about it with the editor. "Where are the butterfly valves used?" "Butterfly valves are generally used for various water fluids, such as domestic water, fire water, process water, circulating water, chilled water, sewage, etc.. Butterfly valves can also be used for some powder materials. Butterfly valves cannot be used To adjust the flow rate. It can be used for automatic switching valves." "On official roads with large diameters, butterfly valves are generally used to control flow. For example, on DN1000 pipelines, if gate valves or stop valves are used, how big the valve should be Ah. But butterfly valves are rarely us...

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...

BS5163 Resilient Seated Gate Valve Big Size Gate Valve   Features 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. Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. Stainless steel stem with rolled threads for high strength. The valve can replace stem seals under pressure. Full bore. Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance. Big Size Gate Valve Standard Design standard BS5163, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 3 Hydraulic test standard EN1074-1 and 2 /EN12266   Seat:1.1*PN(in bar), Body:1.5*PN(in bar)