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Explosion Proof Wave Safety Pressure Reducing Valves For Avoid Water Hammer

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Explosion Proof Wave Safety Pressure Reducing Valves For Avoid Water Hammer

Brand Name : OEM
Model Number : FA49H
Certification : ISO 9001
Place of Origin : Shanghai , China
MOQ : 1pcs
Price : negotiation
Payment Terms : T/T advance or L/C at sight
Supply Ability : 90,000pcs per month
Delivery Time : 1usually within 35 days after received your payment
Packaging Details : Usually packing by plywood case suit for sea delivery
Product Name : Explosion-Proof wave valve
Application : Water, oil, gas etc.,
Size : DN40 ~DN200
Pressure : PN16~PN40
Standard : DIN / BS / AWWA / JIS
Body : carbon steel / stainless steel
Trim : Stainless steel / F6 Steillie
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Explosion-Proof Wave Safety Valve (FA49H) For Avoid Water Hammer



The explosion-proof wave safety valve can eliminate the water shock & prevent water hammer.

Installed in the beginning of the pipeline to prevent water hammer and protect the equipment.


The explosion proof valve is a safety valve which can eliminate the shock wave and can block

the water hammer shock wave, and the product is composed of a plurality of groups of safety

valves, and the function of the safety valve can not be achieved.


The exit of the product is installed in the water supply pipe and the head of civil air defense to

transport medium, to block wave and wave combination, to prevent internal shock wave into the

system engineering facilities, so as to eliminate the destructive shock wave, to protect the system

facilities normal operation and safety protection purpose.


Under normal conditions the valve is normally open, medium normal flow, when the shock wave into

the valve, the main valve valve to overcome the impact of spring strength, rapid closure of the shock

wave in the outer end, just enter the shock wave in the wave valve under the action of the wave

chamber, resolve the destructive force of shock wave, through the barrier and resolve to achieve the significance of protection.


Main parts material
Body, bonnet: carbon steel/ Stainless steel
Spring: stainless steel

Installation instructions
All kinds of FA49H explosion-proof safety valve should be installed vertically.
FA49H type explosion-proof wave safety valve outlet should be no resistance, to avoid pressure phenomenon.
FA49H type explosion proof safety valve should be specially tested before installation, and check its sealing performance.
The safety valve of wave FA49H explosion-proof in use should be regularly checked.


Description:
A27H type are used for the equipment and pipeline of water, air, steam etc. medium what the working temperature are less than 200 . A27Y type are used for the equipment and pipeline of the quality with corrode me-dium what the working tempe-rature are less than 200 . Take for extra pressure devices.
Explanation of materials for main parts
NO.Name of partA27H MaterialsA27W-P MaterialsA27W-R Materials
1BodyHT350ZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti
2Nozzle35ZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti
3Adjusting ring2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
4Disc2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
5Spring50CrVA50CrVA Coated Teflon50CrVA Coated Teflon
6Stem2Cr132Cr131Cr18Ni9Ti
7Adjusting bolt452Cr131Cr18Ni9Ti
8CapZG200-400ZG200-4001Cr18Ni9Ti
Sealing surface of materialD507 Depositing D507Co Depositing stellite
10Adjusting nutQ235-A2Cr131Cr18Ni12Mo2Ti
Sealing surface of material"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

Dimensions (mm)
Nominal diameterDimensions (mm)
DN (mm)doRcLL1GH
15101/2"40651/2"135
20153/4"45703/4"140
25201"45761"155
322511/ "558511/ "170
403211/ "558511/ "310
50402"671002"322
655021/ "7611221/ "344
80653"1101353"395

Capacity : 2000 Nm3/hr
Medium: Feed Gas as per below gas composition

Pipe Size : 4”
Flanged connection ratings 150 # WNRF
Operating pressure : 2 barg
operating temp : 60 deg C
Design temp : 90 deg C
Design pressure : 4 barg
Set Pressure 4 barg
Back pressure : N.A
Relieving Temp : 80 deg C
MOC: Carbon Steel

Sizing for PCV failure

Gas property of Methane


PRVS FOR P305A/B
Ø Body Material: Carbon Steel
Ø Trim material: stainless steel
Ø Inlet rating and connection – 2”X150#
Ø Outlet rating and connection – 2”X150#
Ø Orifice area – F
Ø Operating pressure – 10Kg/cm2
Ø Set pressure – 15Kg/cm2
Ø Fluid – LUBE OIL
Ø Temperature: 45oC


Pressure Relief Valve, Body Material: Carbon Steel, Trim material: stainless steel


The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed. The valves also can be used to sustain upstream pressure to a preset pressure value.


Explanation of materials for main parts
NO.Name of partA21H-C/A21F KA21Y-C MaterialsA21W-P/A21F-P KA21Y-P MaterialsA21Y-R Materials
1Union201Cr18Ni9Ti1Cr18Ni12Mo2Ti
2Union nut352Cr131Cr18Ni9Ti
3Nozzle351Cr18Ni9Ti1Cr18Ni12Mo2Ti
4Body2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
5Disc2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18nI9Ti+PTFE1Cr18Ni12Mo2Ti
6Spring washer2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
7Spring50CrVA50CrVA Coated Teflon50CrVA Coated Teflon
8Locking nutQ235-A2Cr131Cr18Ni9Ti
9Spring guide2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti
10Adjusting nutQ235-A2Cr131Cr18Ni12Mo2Ti
Sealing surface of material"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

Dimensions (mm)
Type(DN)dodDoMd1D1LL1H

Nominal

diameter

KA21Y-16C A21H-16C A21H-4015121520M27 1.5G1/2"30357666
A21W-16P A21W-40P KA21Y-16P20162025M33 1.5G3/4"34408768
25182531M39 1.5G1"4050100105
A21Y-6415101525M39 1.5G1"445010066
A21Y-64P A21Y-10020102031M39 1.5G1"445010068
A21Y-100P25122531M39 1.5G1"4450100105
A21W-16015820/M24 2G1"4450100261
/160P20825/M33 2G1"4450100261
25828/M36 2G1"4450100285

Explanation of materials for main parts
NO.Name of partA28H MaterialsA28Y-P MaterialsA28Y-R8 Materials
1BodyHT200ZG1Cr18Ni9TiCF8M
2Nozzle35ZG1Cr18Ni9TiCF8M
3Adjusting ring2Cr131Cr18Ni9Ti316
4Disc2Cr131Cr18Ni9Ti316
5Spring50CrVA50CrVA Coated Teflon50CrVA Coated Teflon
6Stem2Cr132Cr13316
7Adjusting bolt452Cr13316
8CapZG200-400ZG200-400CF8M
Sealing surface of materialD507Co
Depositing D507Depositing stellite
10Adjusting nutQ235-A2Cr131Cr18Ni12Mo2Ti
Sealing surface of material"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

Product Tags:

pressure sustaining valve

      

pump control valve

      
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