Hebei Huayu Special Rubber Co.,Ltd

PRODUCT DESCRIPTION Hammer union importing international advanced technology, is forged with high-strength alloy steel, strict heat treatment process can ensure that the union have uniform metallurgical structure and pressing ability and the material meets ASTM and AISI Standard and the technology indexes conform to API Spec 6A, the product adopts some end connections of pipeline thread, tubing thread, butt-weld and compress-seal. The type mainly consists of: fig100, fig200, fig206, fig207,fig400, fig602, fig1002, fig1003, fig1502. Fig 50. Orange Nut - Orange Subs These low pressure and suction union of Fig-50 are made from carbon steel. The nut and O-ring are common in both sizes. Available in 4" or 5" sizes in threaded & socket welded connection. These unions are suitable for 500 PSI wp. Nominal pipe size Total length Nut radius Material Weight in mm in mm in mm nut subs lbs kgs 5 127 5 1/2 139.7 5 1/4 133.35 CF SF...

PRODUCT DESCRIPTION Structure:  The hose consists of an inner tube, reinforcement layer, middle layer and rubber cover. Feature:  The hose body length decreased, the diameter increase and on the expansion state after hose enduring internal upright pressure. Under this conditions, the hose accomplishes the hole sealing function. Application: A. Apply to coal mine and clear dust. B. Apply to engineering construction and leak prevention construction underground. C. Apply to tunnel exploitation and pour cast underground and underwater. Inside Diameter Outside Diameter Expansion Range Hole Radius Working Pressure Burst Pressure mm mm mm mm MPa MPa 22±0.5 39±2 +8-4 50 6 29.4 22±0.5 39±2 +8-2 50 6 29.4 32±0.5 48±2 +8-4 56 6 29.4 32±0.5 48±2 +8-2 56 6 29.4 38±0.8 54±2 +8-4 65 4 16 38±0.8 54±2 +8-3 65 4 16 45±0.8 60±2 +8-4 75 4 16 45±0.8 60±2 +8-3 7...

PRODUCT DESCRIPTION Structure: Consists of high pressure expansion hoses, middle steel pipe, sliding sealing coupling and pressure injection coupling. Application: Water injection at coal seam, gas suction and discharge. Technical Parameter: 1. Diameter: 60~150mm(can be customized) 2. Working pressure: 1~6Mpa(can be customized) 3. Operating speed of fluid: 5-8 tons per hour, the amount of gas depending on concentration and pressure. 4. Expansion index: 60~100% Functions: 1. Water injects into the coal seam and releases partial gas, effectively reduces the amount of gas at coal seam. 2. Once the effect of water injection is reached, it can reduce over 80% of dust power and improve working atmosphere, protect from dust explosion. 3. It can moist coal seam and protect coal from self-flaming. 4. Once the system of suction and discharge drilling hole is adopted, the amount of gas and drilling cuttings could be obviously increased, effectively releases gas pressu...

PRODUCT DESCRIPTION Use:  Coal injection, dust-fall, coal pressure reduction, coal-crack, methane drainage, etc. Function: 1. Moisture enters into coal mass, releasing some gas, and reducing the gas content in the coal body. 2. It can reduce the 80% dust, improve workers' working environment, and completely eradicate dust explosion accidents when water injection reaches the desired impact. 3. Wetting coal mass to prevent the spontaneous ignition of coal body. 4. High pressure water injection, breaking coal mass, reducing cost, and enhancing the workers feeling of safety. 5. Use the hole sealing device to efficiently prevent the gas stress and explosion. Structure:  It is made of high pressure expansion hose, safety valve, and rapid-acting coupling. Techincal Parameter Hole-sealing diameter:  30~120mm(also can be processed according to customers' needs ) Working pressure:  1-8MP(processed according to the customers' needs) Start-up pressure of...