Regorge Preventer Flange Connection Prevent The Medium to Flow Backwards

Introduction:

Regorge Preventer is one kind strictly defined in the pipeline the water only can unifiow the water power cxxitrol aggregate unit, its function is in any situation prevented in the pipeline the medium flows backwards, achieved avoids flowing backwards the pollution goal.

This vavle is suitable on system such as petroleum, chemical industry, foodstuff, medicine, papemaking, water and electricity, shipping, plumbing, the smelting and sources of energy etc the pipe route. Can regard on gas, liquid, semifluid as well as solid powder pipes and power lines and the container of many kinds of corrosiveness and non-corrosiveness adjusts and dams a river the equipment use. Especially extensively being in high layer of building fire protection system reaches other to show in the pipes and power lines system of valve of vavle switch state.

Parameter:

Main dimensions and weight

Main Material:

Working Principle:

Regorge Preventer the principle of work is has flcjwed enters when the water check valve because the mechanical resistance using the medium and has flowed the loss of head but the reduced pressure, causes the inlet pressure to be higher than the draw-off valve cavity the pressure, but on the draw-ofF valve diaphragm pressure is the inlet pressure, on the diaphragm the pressure is bigger than the draw-off valve cavity and the spring resistance, the draw-off valve maintenance closure, the medium normally flows, when the inlet pressure and the draw-off valve cavity pressure difference is smaller than 0.02MPa, the medium is at the critical state which flows backwards, by now on the draw-off valve diaphragm the pressure was smaller than the draw-off valve cavity and the spring pressure, the drawoff valve automatically opens, will ftaw backwards outside the medium eduction tube, simultaneously the massive air admission valve cavity, formed the air room partition, ceased the medium to flow backwards, Is bigger than when 0.02MPa draw-off valve automatic shut-off.

After the valve the pipe network hydraulic pressure elevates when surpasses the valve advance water end hydraulic pressure, if second unidirectional make a round trip;goes to the valve seal to be complete, the water body cannot flow backwards, this time draw-off valve closure not drainage, when the second Jianxi check valve seal malfunctions when has the leakage,frie draw-off valve opens the drain- ing water decompression.

FAQ:

Q1. What is your payment term?
A: T/T 30% down payment, balance to be paid before shipment. or L/C.

Q2: What is your main market?
A: Western Europe, North America, Janpan,,

Q3: Can I get samples from your factory?
A: Yes, sample is free, but the express charge is yours.

Q4: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems.

Q5.Are you manufacturer or trading company?
A.We are manufacture(cast iron) and trade company.

Q6. what’s the payment term?
A. We accept T/T, L/C,WESTERN UNION

Q7. What’s the delivery time ?
Pattern needs 30-60 days, sample need 30-50 days.
The first order need 60 days

Q8. What is the standard of package?
A. Export standard package or special package according to customer requirement.

Q9. Do you accept OEM business?
A. Yes, we are OEM supplier.

Q10. what kind of certificate you have ?
A .We have ISO9001, ISO14001,PED,SGS