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  • 3-Stage Air Valve (with Cushioned Disc)

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3-Stage Air Valve (with Cushioned Disc)

3-Stage Air Valve (with Cushioned Disc)

  • Model:3SAV-10/3SAV-16/3SAV-25/3SAV-10Q/3SAV-16Q/3SAV-25Q/3SAV-10P/3SAV-16P/3SAV-25P
  • Specification:DN50-DN500
  • Temperature:-20℃~80℃
  • Medium:Water, and media similar to water.
  • Pressure:PN1.0-PN2.5Mpa
  • Connection method:flang/thread
  • Driving method:automatic (float lever drive)
  • Material:Cast iron, ductile iron, stainless steel
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3-Stage Air Valve (with Cushioned Disc)Overview

Overview

3-Stage Air Valve (with Cushioned Disc) is a high-performance exhaust valve specially developed for sewage, wastewater, and suspended solids medium pipeline systems. It has undergone comprehensive reinforcement design on the basis of standard composite exhaust valves, ensuring reliable high-speed exhaust, micro exhaust, and automatic air replenishment functions even under harsh working conditions containing fibers, particles, and corrosive components through anti blocking structures, enhanced corrosion-resistant materials, and optimized gas-liquid separation chambers. This effectively solves the problems of air resistance, air hammer, and negative pressure damage in sewage pipelines, and guarantees the continuous and stable operation of the system. Specially applied to the highest point or local protrusion of pipeline systems containing solid impurities and corrosive gases, such as municipal sewage treatment plants, industrial wastewater pipelines, mine drainage systems containing slag slurry, food processing wastewater pipelines, and building and domestic sewage risers. It is an essential key equipment for ensuring smooth exhaust and safe operation of such complex medium pipeline systems.

3-Stage Air Valve (with Cushioned Disc) product diagram


3-Stage Air Valve (with Cushioned Disc)Characteristic

Features:

Three-stage intelligent air management:

The first stage (large amount of air intake/exhaust): when the pipeline is filled with water or emptied, the main valve port is fully opened to realize high-speed suction or discharge of air.

The second stage (micro exhaust): when the system operates stably, the independent micro exhaust valve continuously discharges the accumulated dissolved gas.

The third stage (buffer protection): provide damping at the end of high-speed action through the buffer disc, stably absorb the kinetic energy of the float ball, and eliminate the impact noise and abrasion.

Core technology of buffer disc:

A special elastic disc is provided at the high-speed exhaust port or on the movement path of the float. When the float ball quickly rises and closes under the action of air flow, the disc provides nonlinear buffer force, significantly reduces the impact stress, protects the float ball mechanism and prolongs the service life of the valve for several times.

High pressure and high flow adaptability:

The valve body is made of high-strength cast iron or cast steel, and the structure is optimized through finite element analysis. The main exhaust port is large in size and can handle the air throughput under extreme flow. It is applicable to high-pressure (such as PN16-PN40) and large-diameter (DN50-DN300) pipelines.

High-reliability sealing:

The main seal adopts wear-resistant rubber - metal composite structure, and the micro exhaust valve adopts precision float and hard seal. The introduction of buffer technology ensures that the sealing pair can be aligned well and sealed reliably after numerous times of violent opening and closing.

Full working condition protection and low maintenance:Integration of vacuum, water hammer (bridging water hammer) and air lock removal. The modular design makes it easy to disassemble and replace the easy-to-check parts such as the buffer disc, greatly reducing the whole life cycle maintenance cost.    

3-Stage Air Valve (with Cushioned Disc)structure principle

part name drawing

No.序号Part部位Material材料
1Cover Assembly盖组件
1aDomed Nut圆顶螺母Stainless Steel 316 316不锈钢
1bCover盖子Polypropylene 聚丙烯
1cWasher垫圈Stainless Steel 316 316不锈钢
1dNut螺母Stainless Steel 316 316不锈钢
2Flange泛滥PVC
3Strainer Assembly滤网组件
3aBolt螺栓Stainless Steel 304 不锈钢
3bStrainer Ring滤网环PVC
3cStrainer滤网Stainless Steel 304 / 316 不锈钢
4Body Assembly阀体组件
4aBody阀体Reinforced Nylon 增强尼龙
4bSpring Housing弹簧套Acetal 乙缩醛
4cSpring弹簧Stainless Steel 302 不锈钢
4dO-ring O型环NBR
4eSpring Cover 弹簧盖Reinforced Nylon增强尼龙
5Flap Assembly阀瓣组件
5aDisk Seal阀盘密封EPDM
5bFlap阀瓣Reinforced Nylon 增强尼龙
5cFlap Lock Right 右阀瓣锁Reinforced Nylon 增强尼龙
5dPan Head Philips十字槽沉头螺钉Stainless Steel 316 不锈钢
5eFlap Lock Left 左阀瓣锁Reinforced Nylon 增强尼龙
6Spacer Assembly垫片组件
6aSpacer Seal垫片组件EPDM
6bSpacer 垫片Reinforced Nylon 增强尼龙
6cBody Seal 本体密封EPDM


3-Stage Air Valve (with Cushioned Disc)technology parameter


3-Stage Air Valve (with Cushioned Disc)standard size

Standard requirements for external dimensions

1. The structural length of the valve shall be in accordance with the standard GB13927

2. Connecting flanges according to the standard GB/T 17241.6


Outline drawing of 3-Stage Air Valve (with Cushioned Disc)

Outline dimension table

产品代号Product codeDNH
WHEX-D31C-005050350
WHEX-D31C-008080380
WHEX-D31C-0100100400
WHEX-D31C-0150150480
WHEX-D31C-0200200550
WHEX-D31C-0250250630
WHEX-D31C-0300300700
WHEX-D31C-0350350750