BQ341 type worm gear drive, as both ends straight-through flange connections, according to its seal material differs character (W, H, M, M1) respectively belong to the following four conditions:

1.BQ341M1 type pulverized coal injection alumina powder conveying special valve, it is to control the dust and gas fluid and two phase fluid including particle and powder conveying solid medium ideal equipment. Applied to metallurgy, blast furnace pulverized coal injection and pulverizing system and the dust removal system, the special double eccentric type pulverized coal injection valve has the

2. BQ341 W is adapted to the media such as water, steam, water, pulp valve;

3.BQ341M slurry mixed fluid is special valve, solve solution in industrial production and pulp control problems of two phase fluid pipe, in solution easy sedimentation, fouling, crystal precipitation and pulp, with impurity fluid effects such as process line, has unique advantages, open force is small, can break when opening and closing scale obstacles smoothly closed, sealed performance is good, so in the metallurgy, chemical industry, the ash transportation departments such as widely used.

4.the BQ341 H petrochemical gas valve, in view of the petroleum and chemical industry the use of high pressure, full of strong inflammable, explosive, corrosive characteristics, is suitable for various fields of transportation, as well as natural gas, oil field gas, gas, coke oven gas, water gas, liquefied gas and other medium; Pipelines and liquefied petroleum gas storage with the design of the sealing performance is good, resistance to abrasion and easy to be crystallized media using a variety of solution, performance is superior to the ball valves, gate valves, especially for gas containing impurities, gas, such as tea and tar, easy fouling and process, and coke oven gas, water gas, city gas pipeline network, pressure station. Close it light, sealed performance is good, can remove the surface scale of obstacle, wear resistance, resistance to high temperature environment to use better than ball valve.

following advantages:

A. cut-through: one-way seal and eccentric structure, especially suitable for pulverized coal injection, alumina conveying of gas-solid two phase flow medium, open the valve core and valve seat from, circulation are deposited there will be no jam phenomenon;

B. light switch, open the valve core and valve seat from, without any contact, small starting torque, flexible rotation, closing, hemisphere and the seat of the dissectible can remove scale and adhesive on the surface of the seal, seal was reliable;

C. valve belongs to hard seal structure, seal use wear-resistant alloys, including material Cr - Mo - V through special processing is made, the fluid does not directly flush valve core, valve wear resistance, long service life.

D. make spherical eccentric structure can automatically compensate the wear of sealing surface differ, keep the valve sealing performance, long service life, safe and reliable, and not in use for a period of time after the leakage due to wear and tear;

 material and the code: