Full Pressure High Speed Exhaust Valve

QSPl.0 (1.6, 2.5, 4.0) type full-pressure, high-speed exhaust valve, installed on water pipelines below 1.0 (1.6, 2.5, 4.0) MPa. Water temperature lower than 80 ℃, thermal circulation water pipelines. It used to discharge Air and some steam in the pipeline to eliminate the increase of water resistance caused by gas storage in the pipeline, the rupture of the pipeline caused by the gas explosion water hammer, etc. When the vacuum is generated in the pipeline, it can automatically inject gas to prevent sewage from seeping into the pipeline and Deformation of thin-walled steel pipes, etc.

Special Note

During the test run of urban water supply pipe network and new water supply system. Pipe burst or water hammer damage accidents are prone to occur. Studies have shown that poor exhaust pipes are the main cause of accidents. However, the existing high-speed exhaust valves (including double-port exhaust valves and composite double-port exhaust valves) can only discharge unpressurized gas at high speed. It is almost inevitable, therefore, ordinary high-speed (double-port) exhaust valves cannot meet the needs of pipeline exhaust, resulting in many bursts of urban water supply pipelines and frequent accidents.

This full-pressure high-speed double-port exhaust valve is different from ordinary high-speed (double-port) exhaust valves in terms of structure and principle. For the gas in the pipeline, no matter whether there are multiple water columns or alternate gas columns. It can be discharged from the pipeline at high speed with or without pressure. The use of this valve will relieve you of the risk of trial run of new pipelines and the difficulty of exhausting; It reducing the accidents of pipe network bursts, reducing resistance and energy saving, reducing pressure shocks, and improving the safety and reliability of the entire water supply system and various equipment.

1. Gas storage status in the pipeline

2. Causes of gas storage in the pipeline

(1) Newly built pipelines pass water for the first time.

(2) Accident maintenance venting.

(3) The gas enters the pipeline after the local pipeline network stops water due to insufficient water supply.

(4) The pressure fluctuation caused by the user opening and closing the large gate causes negative pressure in the pipeline, and the exhaust valve injects gas.

(5) Gas release of water in flow.

3. Limitations of ordinary high-speed (dual-port) exhaust valves

Ordinary high-speed exhaust valves have two parts: high-speed exhaust and microporous exhaust. The structure of the high-speed exhaust part is shown in the figure above: Only the first stage of unpressurized gas can be discharged at high speed. When the first stage of gas is exhausted, the floating ball floats up and blocks the exhaust port. The second stage of gas is pressurized gas. Although the pressure may not be large, it is generally enough Hold the float so that it cannot fall down, and make the valve lose its high-speed exhaust function.

Product Specification

Application

It is used in urban water supply network and new water supply system。

Package&Transport

Regarding the packaging materials and methods of products, we will strictly follow customer requirements and international export standards. And according to the actual situation, choose the most effective transportation method to ensure the safety of the product and quickly reach the customer.

After-sales service

We provide comprehensive and timely after-sales service, no matter in terms of transportation, product quality, installation, etc., we will answer customers' questions 24 hours a day and provide effective solutions until customers are satisfied.

QA

Q1: Wonder if you accept small orders?

A1: Don't worry. contact us whenever necessary. In order to get more orders and give our customers more conveners, we accept small orders.

Q2: Can you send the product to my country?

A2: Sure, we can. If you don't have your own freight forwarder, we can help you.

Q3: What's your payment terms?

A3: 30% deposit in advance, 70% balance before shipment.

Q4: How long is your production lead time?

A4: It depends on the product and order quantity.

Q5: When can I get the quotation?

A5: We usually quote you within 24 hours after we get your inquiry. If you need a quotation urgently. Please call us or tell us in your mail so that we will regard your inquiry priority.

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