pneumatic knife gate valve

Design stanard: MSS SP-81, JB/T8691
Flange connection: ANSI B16.5, JIS10K, PN10, PN16
Body material: GGG40, GGG50, A536, Ductile iron
Disk / stem material: SS201,SS304,SS304L,SS316,SS316L,SS2205, SS904L, SS2507
Size range: DN50(2'')-DN1600(64'')
rising stem or no-rising stem
Actuator: handle wheel, lever, gear, hydraulic, electrical, Pneumaitc cylinder
Double acting cylinder or spring return cylinder, switches, limit switches,
positioner, solenoid valve, air filter etc. fail safe system
Seat material: NBR, EPDM, VITON etc.
customized design on request:
Deflection cone, flush ports

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Product Detail

Ductile iron knife gate valve is a commonly used fluid control valve, widely used in petroleum, chemical industry, water treatment, comprehensive utilization and other fields.

The following are the characteristics and operating instructions of the ductile iron knife gate valve:

The material of the valve body of the ductile iron knife gate valve is ductile iron, which has high toughness and strength, so that it can still work normally under conditions such as high pressure, high temperature, high vibration, and strong corrosion.
The valve blade is made of stainless steel, which is corrosion-resistant, wear-resistant and has a long service life.
The blade adopts a spring-type sealing structure, which has good sealing performance, small opening and closing torque, and easy operation.
It can realize the true closed control of zero leakage, zero jamming and zero pollution, and has excellent fluid control ability.

Instructions for use:

1. When selecting a model, it is necessary to select the appropriate valve material, nominal diameter, etc. according to the actual working pressure, temperature, medium and other requirements.
2. Before installation, carefully check whether the valve is in good condition and whether the operation is flexible, and carry out necessary cleaning and derusting treatment.
3. When using, follow the operating procedures provided by the manufacturer. Do not exceed the working pressure and temperature range of the valve. When opening and closing the valve, it should be smooth and orderly to prevent damage caused by rapid switching.
4. Carry out regular maintenance, remove internal impurities, regular lubrication, etc.

In short, the ductile iron knife gate valve has the advantages of simple structure, convenient operation, high pressure resistance, corrosion resistance, long service life, etc., and is an economical and practical fluid control valve.