Shanghai Nellway Valve Co., Ltd.

Steam system

Steam system

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3/4 inch high pressure ball valve
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3/4 inch high pressure ball valve
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Steam system valves usually have temperatures above 300°C and pressures up to 10MPa, so the sealing and leakage requirements for the valves are usually higher. For valves that need to be resistant to high temperatures and high pressures, our valve seat sealing surfaces usually use carbide sealing surfaces, which require chromium-molybdenum steel, stainless steel and other alloy materials. The valves usually use bellows globe valves, bellows gate valves, steam pressure reducing valves, steam Regulating valve, etc.

WORKING CONDITION​

Our valves are widely used in various fields. For different fields, the pipeline media will be different. According to the temperature, corrosiveness and characteristics of different media, corresponding valves are selected. You can also contact us to customize a valve that meets your working conditions.

Cement plant

Cement plant valves are mostly made of cast steel. The valves are required to withstand high temperatures and pressures, and are corrosive under special working conditions. Common valves include gate valves, globe valves, check valves, ball valves, gate valves and other conventional valves.

Hydropower station

Special valves for hydropower stations are mainly used in turbine water inlet pipes. They are characterized by automated control valves, mainly electric control, pneumatic control valves, etc. Water turbine water inlet valves mostly use electric ball valves, electric butterfly valves, hydraulically controlled butterfly valves, hydraulically controlled ball valves, etc. as water turbine water inlet valves, which are used for overhaul and maintenance of water turbines and other related power generation equipment.

Natural gas

Natural gas working conditions have very strict requirements for pipeline valves. In natural gas working conditions, we must pay attention to requirements such as explosion prevention and leakage prevention, fire prevention and anti-static. Under normal natural gas working conditions, fireproof and anti-static ball valves will be selected, and electric actuators or pneumatic actuators shall be explosion-proof, or Adopt gas-hydraulic linkage actuator. The valve adopts welding connection or flange connection.

Petroleum industry

Special valves for oil pipelines use ball valves, flat gate valves, globe valves and other high-pressure resistant valves. Special valves for oil fields are mainly divided into anti-sulfur mud valves, soft-sealed mud valves, high-pressure wellhead gate valves, hard-sealed mud valves, anti-theft clamp valves, and cannonball valves. , downhole sealing device, differential pressure oil seal gate valve, throttle cut-off vent valve, grinding wheel type regulating valve and other categories.

Steam system

Steam system valves usually have temperatures above 300°C and pressures up to 10MPa, so the sealing and leakage requirements for the valves are usually higher. For valves that need to be resistant to high temperatures and high pressures, our valve seat sealing surfaces usually use carbide sealing surfaces, which require chromium-molybdenum steel, stainless steel and other alloy materials. The valves usually use bellows globe valves, bellows gate valves, steam pressure reducing valves, steam Regulating valve, etc.

Waterworks

Special valves for water plants, referred to as water valves, are generally made of ductile iron, cast steel, etc., and the sealing ring is made of nitrile rubber. Common water plant valves are: multi-function hydraulic control valve, pressure reducing valve, safety relief valve, Soft seal gate valve, remote control float valve, butterfly valve, etc.

Insisting on good quality valves is the principle of our company and the basic principle and reason for success in any situation. We are a reliable valve manufacturer. Contact us for a free consultation.

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