Pneumatic knife gate valve

A brief introduction:
PZ673H, PZ673X, PZ673F series Pneumatic knife gate valve Slurry and flashboard valve is one of the automatic control valve in the production process of varieties. A straight stroke piston type pneumatic actuator and knife type valve structure, equipped with a solenoid valve through the completion of the two cut off control, equipped with electric valve positioner can also complete control. The user can choose according to the actual needs. The main use of cast steel, stainless steel and other materials. Especially suitable for papermaking industry, chemical industry, coal, water, sugar and other industries to make adjustments or cut off the fluid control in the pipeline.
Two, PZ673H, PZ673X, PZ673F Pneumatic knife gate Valve characteristics:
1. knife gate slurry, dark rod and rod of both single and double seal structure; sealing structure, full circle design of the DC channel without slag, block. Processed into the bottom plate blade knife blade, a sealing ring with plane floating, floating ball arc metal sealing structure, between the gate and the metal seat is gapless hoist, on soft materials such as fiber, pulp, wood pulp with large shearing force and self-cleaning function, but also has good opening and closing function. The upper blades installed in the hard Teflon wiper can prevent dust and scratch gravel and other substances into the packing box, can significantly increase the life of blades.
2. body, filling culvert are precision casting, the whole body with flange type casting, valve plate made of stainless steel and precision processing can obtain ideal sealing effect of grinding and polishing. Compact design, small occupying space, light weight, easy installation, wear-resistant, non stick slag anti blocking measures to perfect and convenient maintenance and long service life.
3., slurry knife gate valve can be made within the V shape, U shape, triangle channel. V type gate control can be used as a regulator, the connection form of clip, flange lug, metal to metal seal, metal sealing of soft polyurethane, PTFE seal.
The 4. piston pneumatic actuator, powered by compressed air, an air pressure signal of electric - gas valve positioner or solenoid valve input, the pressure thrust on the piston, and the push rod displacement, to achieve linear motion.
5. medium: gold powder, tailings, pulp, wood pulp, fiber, dust, chemicals, sewage treatment tank, ore, slag, coal, asphalt, outlet, fruit, grain, cement slurry, slaughter wastewater etc.. Applicable temperature; soft sealing: (less than 150 DEG C (tetrafluoroethylene), polyurethane is less than or equal to 80 DEG C), seal: less than or equal to 425 DEG C. Working pressure: 0.6 ~ 1.6MPa, nominal diameter: DN40~DN900mm.
Three, Pneumatic knife gate valve Technical parameters:
Nominal pressure: 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa, 150Lb
Nominal diameter: DN50~500mm NPS 2 "~20"
Suitable temperature: 0~+200 degrees (the specific temperature range as the sealing material and the properties of the media set)
Flange: ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF, BS
Main material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3, CF3M
Seal type: hard seal, soft seal
Leakage: Seal: D (liquid level 0.1 * DN mm3/s): a soft seal (zero leakage)
Pneumatic actuator accessories: 1, installation flange 2, solenoid valve 3, air filter
Air pressure: 0.4~0.6MPa solenoid valve voltage: DC24V, AC220V
Four, Pneumatic knife gate valve Standard Specification for:
Design and manufacturing standards:
The structure of standard length: GB/T 12221-2005
Flange standard: GB/T 9113
Pressure temperature rating: GB/T 12224-2005
Test standards: GB/T 13927-2008
Five, the main components of materials:

Six, the main technical performance of the actuator:

Seven, pneumatic knife gate valve shape and connection dimensions:

Eight, ordering:
1, customers have special requirements for products, must be in the contract to provide the following instructions:
2, the length of the structure, the connection form of nominal diameter, full size, shrinkage, pipe size, and according to the medium temperature and pressure, test, inspection standards and other requirements
3, if the unit has been selected by the design model of our products, please press the model directly to our sales department order;
4, this field according to the special requirements of customers of all kinds of driving device configuration. If necessary, please contact our technical department.
5, when the occasion is very important, or more complex piping when you try to provide design drawings and detailed parameters by Zhongwei Technology Department audit checks for you.