TP41YF sleeve blowdown stop valve,sleeve blowdown stop valve, stop valve

TP41YF Sleeve blowdown stop Valve Product Introduction:

Evolved from the gate, the use of gear rotation 90 degrees to drive the valve stem lift to achieve the purpose of opening and closing.

Simple structure, good sealing, and small size, light weight, less material consumption, small installation size, especially the drive, sewage valve pn≤20mpa high-pressure boiler regular sewage, can be five channels at the same time, can also be a channel sewage.

Design features:

The use of cage speed palace throttling device can weaken the valve and reduce the bath sound of the downstream fluid, the piston compound seal, the sealing and throttling area is separated, so that the sealing pair reduce erosion, the seal adopts double sealing structure to seal the valve to achieve no leakage, with durable service life.

Product working principle:

1, valve opening (sewage process) :

a. Turn the handwheel stem counterclockwise to drive the spool gradually upward, the sealing surface is removed, the guide seat on the spool gradually moves out of the seat hole, forming a narrow gap. The medium enters the seat through the symmetrical throttle hole on the seat, and a small amount of medium can flow out through the narrow gap to gradually reduce the system pressure.

b. Continue to turn the handwheel counterclockwise, the spool moves upward, the throttle hole on the flow guide seat moves out of the seat cavity, and more media is smoothly discharged through the flow guide seat and valve sleeve throttling.

c. Continue to turn the handwheel counterclockwise, the valve core is moved upward to the fully open position, at this time, the medium pressure is greatly reduced, a large number of impurities can be directly discharged from the valve sleeve throttling hole, and form eddy current at the inverted sealing seat, constantly clean the sealing surface to prevent impurities from sticking to the sealing surface.

2, valve closing process:

A. Turn the valve clockwise, the valve stem drives the spool down, at this time the discharge has ended, the system pressure is low, the throttle hole area on the valve sleeve is gradually reduced, the guide sleeve is close to the seat, and the flow direction of the medium is changed, the medium is throttled at a certain speed through the spool and the valve to make the sealing surface, and gradually strengthen the cleaning of the sealing surface.

b. Continue to turn the handwheel, the guide seat on the spool enters the seat hole, forming a narrow slit throttling, as the discharge is near the end, the impurities in the medium have been less, the narrow gap between the guide sleeve and the seat prevents the remaining small impurities from flowing into the sealing surface, the medium quickly flows out through the narrow gap, thoroughly clean the sealing surface, and ensure that the sealing pair contact zero leakage.

c. Continue to turn the handwheel, valve spool and seal seat contact. Achieve sealing.

Simple structure, good sealing, and small size, light weight, less material consumption, small installation size, especially the drive, sewage valve pn≤20mpa high-pressure boiler regular sewage, can be five channels at the same time, can also be a channel sewage.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition