Pneumatic with manual flange knife gate valve size

Z643H（X、F）-2.5、 6. The 10 and 16 series pneumatic with manual flange knife gate valves are one of the series of control valves produced by our company. This product continuously digests and absorbs advanced features of similar product structures and manufacturing processes at home and abroad in the production and application process, continuously improves the technological content of the product, and starts from some technical details to improve the comprehensive performance of the valve. This product can complete the action control and signal output of opening and closing positions by using accessories such as solenoid valves and proximity switches, as well as automatic control of continuous actions. Users can choose according to their actual needs. The PZ643H (X, F) series pneumatic knife type gate valve has a complete range of varieties. The main body is made of cast iron, cast steel, stainless steel, etc. The diameter ranges from DN50 to DN1000. The product is widely used in chemical, coal, sugar, sewage, papermaking and other fields, and is an ideal sealing valve. Especially suitable for the paper industry to regulate and throttle pipelines.

1. The valve adopts an integral design, with low fluid resistance and flexible and convenient operation.

2. The screw drive of the manual knife gate valve adopts a double plane bearing design, which greatly reduces the transmission friction and makes the valve open easily and smoothly.

3. The sealing seat of the knife gate valve adopts a movable seal, and uses O-ring pre tightening to provide pre tightening force to make the sealing seat tightly adhere to the valve disc, greatly reducing leakage. It has an automatic compensation function for the wear of the sealing pair during long-term use, which improves the service life.

4. Fixed guide claw, no groove design, less likely to cause medium accumulation or jamming.

5. The valve seat can choose metal hard seal or soft seal according to the needs of the medium and working conditions: the gate plate is treated with surface chrome plating or ion nitriding to make the gate plate more wear-resistant and the sealing surface has a longer service life; Soft sealing options include PTFE valve seat or reinforced PTFE valve seat, or EPDM or nitrile rubber, with good sealing performance and corrosion resistance.

6. Wide range of medium adaptability: Good sealing performance and strong economic practicality, can be operated manually, pneumatically, or electrically, with a very wide practical range.

7. The service industries include energy, petrochemicals, metallurgy, chemical engineering, mining, papermaking, environmental protection, biochemistry, pharmaceuticals, petroleum, electricity, printing and dyeing, light industry, food, tobacco, sugar production, beverages and other fields.

Description of Gas Electric Control Function1. The pneumatic knife type gate valve cylinder is controlled by a dual electric control three position five way solenoid valve, and a three position switch is used to control the gate valve to stay at the upper limit, lower limit, and any position.

2. When the gate valve stays at the upper and lower limit positions, the limit switches of the upper and lower limit positions emit a set of independent signal contacts that are normally open or normally closed. Can be used as a status indicator.

3. When the gate valve stays at the upper and lower limit positions, the limit switches of the upper and lower limit positions automatically cut off the power supply to the corresponding control coils of the solenoid valve. When the gate valve stays in the upper and lower limit positions for a long time, the electric control coil of the solenoid valve is not powered, which can avoid the heating of the solenoid coil and improve the service life of the solenoid valve, greatly improving reliability.

4. When the gate valve stays in the upper and lower limit positions for a long time; The gas source is cut off without consuming gas, but the air pressure of the locking valve cylinder remains in the cylinder, ensuring reliable stopping.

5. During the cylinder switching process, if the control power is cut off, the inlet and outlet air of the cylinder are also cut off, and the air pressure of the locked valve cylinder remains in the cylinder. If there is no leakage in the cylinder piston, solenoid valve, and joint, the gate valve can stay in any position for a long time.

This product is directly supplied by the manufacturer. If special configurations are required (can be customized), please specify the following parameters in detail when placing an order:

(For example: valve type, driving method, connection form, structural type, nominal pressure, nominal diameter, input signal, sealing surface material, valve body material, applicable temperature, whether accessories are included)