Gwxdf3204y Bidirectional Flow Hard Screw Ball Valve

• Customized: Customized
• Certification: ISO, API, CE
• Power: Pneumatic
• Pressure: Medium Pressure
• Brand: Xuan Cheng
• Work Temperature: Normal Temperature
• Model NO.: GWXDF3204Y
• Material: Carbon Steel
• Medium: Water, Steam, Gas, etc
• Structure: Through
• Connection Mode: Flange
• Seal: Hard Seal
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: xc
• Origin: China
• HS Code: 8412310090
• Production Capacity: 10000

Product Description

Most of the valves in GWXDF3204Y bidirectional flow hard rotary ball valve
 pipe network system are mainly used to cut off and adjust the medium. This part of the valve accounts for a large proportion and a large amount in the whole system, requiring the valve to be durable and cost-effective. At the same time, it should be able to adjust and load off the medium when it is flowing forward, and prevent the medium from backflowing when the pressure difference is changed or repaired. That is, it has bi-directional cutting function. Recently, this part of the valve in the pipe network system, the main applications are globe valve, gate valve, butterfly valve and ball valve. The globe valve and gate valve, has a good two-way cutting function, sealing performance and service life are good, are one of the ancestors of the valve, but the globe valve is subject to the congenital limitation of the closure door structure, the appearance of large operating torque is large, can not produce large caliber, the largest on the market only to DN400; Gate valve is no adjustment function, to adjust the flow there is a major risk of gate plate falling off, and large caliber gate valve also with its huge shape and height, in the manufacturing and transportation difficulties. Compared with the gate valve, the butterfly valve has the characteristics of short opening and closing time, small operating torque, small installation space and light weight, and part of the division of labor uses the butterfly valve instead of the gate valve. However, the sealing performance of the butterfly valve has not fully met the market requirements, except that the center line rubber butterfly valve can be bidirectional sealing within a certain pressure range, other structures are basically one-way flow. The middle line structure is limited by rubber and can not be popularized. After improvement, the two-way butterfly valve with stainless steel elastic plate structure appears on the market, but its price is high. At present, it is mainly used in oil, natural gas, gas and other media of more important pipelines, in the general pipe network, especially the water system application is very little. The main advantages of

GWXDF3204Y bidirectional flow hard screw ball valve are: 1, not only
can be reliably shut off in the forward pressure, in the reverse pressure or reverse pressure is much greater than the forward pressure can also be reliably shut off; 2, the two sealing surfaces of the sealing
pair can be formed according to the different hardness needs of space plasma spraying, Ethernet laser sputtering, vacuum protection and other advanced processes such as surfacing martensitic stainless steel, austenitic stainless steel, cemented carbide, cermet, artificial diamond and other gradient functional materials; 3, can automatically
correct the center (self-adaptive), and can automatically overstep compensation wear; 4. When closed,
make full use of the energy of the medium in the valve, automatically apply a very high sealing pressure, so that the high hard sealing pair can achieve reliable zero leakage; 5. There is no friction between instant closing
and instant opening sealing pair. When opening, the projected section of the spool continues to shrink and retreat, and the initial retreat is faster than the retraction. When closed, the projected section of the spool continues to expand and advance. When closed, the expansion rate is greater than the forward rate, and when closed at the end, the forward rate is greater than the expansion rate. It has the characteristics of eccentric half ball valve, globe valve and wedge gate valve; 6, its main structure
is similar to the butterfly valve, with the characteristics of the butterfly valve structure is short, small size, so it can manufacture large caliber, large caliber, large caliber valves; At the same time
, the valve has the functions and advantages of butterfly valve, half ball valve, gate valve and globe valve, and has its own unique powerful functions and advantages. Small size, light weight, transportation, installation, maintenance and repair convenient, reliable operation and a series of advantages, has become a major technical revolution in the valve industry