News - Knife type gate valve

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Company Name:
Xiamen Freede Industry Co., Ltd.
Contact Person: Carlos Hu
Tel: 86-592-5237455
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Email: freede@sino-freede.com
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http://www.freedevalve.com

Home > News > Knife type gate valve

Knife type gate valve - 2014-01-20 10:05:03

Knife gate valve has a simple and compact structure , reasonable design, lightweight materials, reliable sealing , light and flexible , small volume, channel flow, flow resistance , light weight , easy to install , easy to disassemble , etc., to solve the common valve, flat gate valves , globe valves, control valves, butterfly valves, ball valves , such as the weight of large, flow resistance , a large area , it is difficult to install other difficult problems , and can replace common valve shut-off valve , pressure at work can 1.0MPa-2.5MPa, use working temperature -29-550 ℃ under normal circumstances . Knife gate valve with cut function can scrape the surface of the adhesive seal material , seal leakage is automatically cleared debris , stainless steel gate to prevent corrosion.

Knife gate valve is made in accordance with the different caliber dark bar and the next shot two forms ( dark bar DN50 ~ 900mm, the next shot DN50 ~ 900mm).

Knife gate valve can be made inside the V -shaped, triangular , pentagonal channels. V- gate can be used as a modulating control .

Knife gate valve is connected in the form of clip-on flange lug , sealed with a metal on metal seal , metal on polyurethane , with a reinforced PTFE soft seal .

Knife gate valve can be divided according Transmission : manual ( hand wheel , manual zipper ) , worm gear ( spur gear , bevel gear ) , pneumatic, electric , hydraulic, etc;

Knife gate valve according to the control mode can be divided into : manual control, pneumatic control , solenoid control, analog remote computer control.

Scope of knife gate valve

Knife gate valve for mining coal power plants , slag , urban sewage treatment, food, paper , pharmaceutical, petroleum, chemical oil, water, steam piping , connect or disconnect the line of grout , gold powder , ores , slag , coal , pulp , wood pulp, tailings , fibers, dust , chemicals, sewage treatment , sedimentation tanks, asphalt, bunker export , fruits , grains, slaughterhouse waste and other media.

Knife gate valve Features

1. Can enhance the sealing surface of the gate , you can scrape the adhesive material of the sealing surface , automatically remove debris.

2. Stainless steel gate prevents seal leakage due to corrosion , grinding polishing for better sealing effect. Processed into the bottom of the knife blade -shaped plate of soft materials such as fiber , pulp , wood pulp with a cut-off function , and opened and closed with good effect . Blades installed at the upper end of a hard Teflon scraper device to prevent dust, gravel and other substances into the stuffing box and scratch resistance , can significantly increase the life of blades .

3. Stainless steel body strong and durable , designed to enhance the body stiffener body strength , using open and close more quickly headed screw .

4. Whole stainless steel to prevent corrosion damage . Body filler Han are precision casting , which the body uses the whole cast flange type , material can be selected according to user needs 304,316,316 L, WCB, 2Crl3, seal with PTFE PTFE material , corrosion resistance, wear-resistant, non-stick residue.

5. All- round DC channel design does not exist slag, no jamming .

6. Seal stuffing box design science , so that the seal is safe and effective , and durable.

7. Short length of the structure , you can save raw materials , the installation space, but also effectively support the pipeline strength.

8. Triangular bracket save raw materials , need to ensure the mechanical properties .

9. Guide block knife gate valve gate valve on the right to make sport . Ram extrusion block to ensure an effective seal .

10. Knife gate valve drive mechanism can be arbitrarily chosen .

11. V -type gate can be used as a regulating valve.

12. Compact design, small footprint , light weight , inexpensive, easy to install , anti-blocking measures to improve wear resistance , ease of maintenance , ease of use and long life, and can be arbitrarily chosen drive.

13. Valve plate 5 has support points , the valve plate has a good self- alignment . When the valve is closed, and subjected to backpressure valve plate does not shift.

Keywords:butterfly valve ,knife gate valve,ball valve,globe valve,slurry gate valve

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