SCARXThe composite exhaust valve for sewage is a barrel type valve body with stainless steel floating ball and plug inside. The valve is installed at the pump outlet or in the water supply and distribution pipeline to discharge the accumulated air in the pipeline in a large amount, so as to improve the efficiency of water pipe and water pump. In case of negative pressure in the pipe, the valve can quickly inhale air to ensure that the pipeline will not be damaged due to negative pressure. The pressure level is 1.0MPa.        
This product is used in the high point of Zui or the place with closed air on the sewage pipeline. The pipeline can be dredged by removing the gas in the pipe to achieve normal operation. If the exhaust valve is not installed, the pipeline will be blocked at any time, which means that the water outlet capacity of the pipeline can not meet the design requirements. Secondly, when the pipeline is running with power failure and pump stop, the negative pressure of the pipeline will cause pipeline vibration or rupture, and the exhaust (suction) valve will quickly draw air into the pipe to prevent pipeline vibration or rupture.

 

           The composite exhaust valve for sewage is a barrel type valve body with stainless steel floating ball and plug inside. The valve is installed at the pump outlet or in the water supply and distribution pipeline to discharge the accumulated air in the pipeline in a large amount, so as to improve the efficiency of water pipe and water pump. In case of negative pressure in the pipe, the valve can quickly inhale air to ensure that the pipeline will not be damaged due to negative pressure. The pressure level is 1.0MPa.        
This product is used in the high point of Zui or the place with closed air on the sewage pipeline. The pipeline can be dredged by removing the gas in the pipe to achieve normal operation. If the exhaust valve is not installed, the pipeline will be blocked at any time, which means that the water outlet capacity of the pipeline can not meet the design requirements. Secondly, when the pipeline is running with power failure and pump stop, the negative pressure of the pipeline will cause pipeline vibration or rupture, and the exhaust (suction) valve will quickly draw air into the pipe to prevent pipeline vibration or rupture.

1. Working pressure: 1.0MPa
2. Medium: clear water
3. Service temperature: normal temperature

Part name	texture of material	Part name	texture of material
valve body	cast iron（HT200）	sealing material	Butadiene rubber
Floating ball and valve	stainless steel（304）	Lever frame	stainless steel（304）

 

Nominal diameter DN（mm）	H	D	D1	Z	Ф-d
50	490	165	125	4	19
80	590	200	135	8	19
100	750	220	180	8	19
150	820	285	240	8	23
200	1000	340	295	8	23
250	1200	395	350	12	23

(1) In strict accordance with the requirements of the contract, to provide qualified products that meet the design standards.
(2) Strictly check and control the quality of raw materials, components and accessories.
(3) Ensure that the processing technology of the equipment is perfect and the detection means are complete. Products will never leave the factory with defects.
(4) Be fully responsible for the supply, quality, equipment performance, technical interface, service and other aspects of the subcontractor. The key parts specified in the contract must meet the requirements of relevant qualification and be approved by the demander.
(5) Provide relevant department standards and drawings to the supervision unit according to the contract, provide convenience for the supervision, and inform the demander and the supervision representative of the shutdown parts of the supervision equipment 7 days in advance. The supervision assigned by the demander is to urge us to produce qualified products according to the standards, but it does not reduce all our quality responsibilities.
(6) The quality defects in the process of equipment manufacturing shall be timely reported to the demander and the supervision representative without concealment. If the equipment defect exceeds the standard specified in the contract, the supplier shall replace it unconditionally. In the process of installation and trial operation, if there are quality problems of the equipment, the problems should be dealt with first, and then the responsibilities should be clarified. Everything should be based on the requirements of project progress.
(7) In case of any accident, we will replace and repair the supplied equipment free of charge as soon as possible until the demander is satisfied.
(8) In case of missing parts or missing parts caused by other reasons in the process of unpacking, we are responsible for making up the missing parts for free as soon as possible. We shall be responsible for the quality problems found during the installation and commissioning of the equipment and in the operation of the equipment in the future.
(9) Provide the demander with all technical data and drawings according to the contract on time. Have the obligation to invite the demander to participate in our technical design audit when necessary.
(10) According to the time required by the demander to the site for technical services, guide the demander to install, trial run and trial production according to the requirements of our technical data and drawings.
(11) For the supporting equipment related to the contract equipment purchased by the demander first, we will actively provide the technical conditions and data meeting the equipment interface requirements.
(12) Strictly implement the minutes or agreements of the meeting held by both parties on relevant issues.
(13) According to the provisions of the contract, free business training courses on equipment installation, commissioning, use and maintenance technology shall be held for the demander.
(14) Strengthen pre-sale, in-sales and after-sales services, and implement "24-hour service", "advanced service", "whole process service" and "life-long service" in the whole process of product manufacturing, installation, commissioning and overhaul.
(15) After receiving the quality problem information reflected by the demander, reply within 24 hours or send service personnel to the site as soon as possible, so as to ensure that the user is not satisfied with the quality and the service does not stop.
(16) Free for the product to provide lifelong maintenance, where our factory users, have established a detailed user file, our factory after-sales service. Regular return visit and inspection system are implemented to guide the daily maintenance of users, and timely point out and solve possible faults.
(17) At any time to meet the demander's requirements for spare parts, lifetime to provide users with high-quality and low-cost spare parts.