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Spring Bellows Pressure Reducing Valve (GABRV71)

Spring Bellows Pressure Reducing Valve (GABRV71)
Price: US $ 1/Piece
Trade Terms: FOB,CIF,EXW
Min Order: 1/Piece
Pay Type: T/T,Paypal,Western Union
Structural Characteristic&Purpose.

This pressure reducing valve is robust direct acting bellows pressure reducing valve designed for use on steam,air and inert industrial type gases.The valve is available in four nominal sizes:DN25,DN32 ,DN40 and DN50. Set the outlet pressure through adjusting spring, the opening of valve flap enlarged when the outlet pressure reduced, the opening of valve flap decreased when the outlet pressure reached to the set pressure. The valve pressure of the medium acts on the area of corrugated tube and transduce to adjusting spring, realizing the function of pressure reducing and regulating.
This reducing valve is designed in meet of the need of energy saving. It has the characteristics of multi-function and light. You can adjust the pressure by rotating the plastic hand wheel, no need to use tool, the connection and installation is very convenient. The internal structure use corrugated tube, the sealing face has filtering mesh protecting device, which protect the internal parts from damage, and greatly prolong the service life.

Working Principle.

In operation the valve will modulate as a result of a downstream pressure signal fed through the sensing orifice in the valve stem . This pressure acts on the control bellows generating a force which is balanced by the compressed control spring.The internal forces generated as a result of both upstream and downstream pressures acting on the area of the valve head are minimised by use of a balancing bellows . A graphite reinforced PTFE bush incorporated in both the pushrod/balancing bellows assembly and bottom cap assembly provides two point guiding.

Note: The maximum upstream pressure is 10 bar and it is recommended that the pressure turndown is limited to about 10:1.
GABRV71 Screwed NPT connections
GABRV73 Flanged PN16,ANSI 150 or JIS 10 connections.
 
The GABRV71 and GABRV73 are supplied with one of three colour coded springs:
Grey:                             for pressure control                                 0.14 to  1.7 bar g
Green:                            for pressure control                                1.4   to   4.0 bar g
Orange:                           for pressure control                                3.5  to    9.0 bar g
 
Main Technical Parameters&Indexes OPerformance. 

Nominal pressurePN1.6Mpa
Tested pressure of shell2.4Mpa
Sealing test pressure1.76Mpa
Maximum upstream pressure1.0Mpa
Maximum downstream pressure0.9Mpa
Pressure range of outlet0.014-0.9Mpa
MediumWater, steam, liquid, air, oxygen, nitrogen, etc.
Operating temperature210

Material Of Main Component.

Name of componentMaterial of component
Valve body, bottom cover, valve covercast steel / CF8
valve flap,Valve rod, Valve seatCF8
bellows1Cr18Ni9Ti
Membrane Hand wheelHeat-resistant plastic
Spring of main valve50CrVA
Adjusting spring60Si2Mn
 
Connecting Dimensions.
 
DNGAA1
DN251134174
DN321 1/4134179
DN401 1/2134186
DN502134186

Prod Model: GABRV71
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Model No: Gabrv71
Size: 1"-2"
Category: Pressure Reducing Valve
Connecting Type: Threaded
Material: C.S
Medium: Steam.,etc
Working Temperature: Below 250 Deg C
Usage: Pressure Reducing
Application: Steam System and Air Compressor System
Yongjia Goole Valve Co., Ltd is a specialized and modernized company. As industrial valves, filters and pipe fittings supplier and project service provider, we are willing to provide you with high quality and perfect fluid control solutions, to create a new intelligent system with high efficient, energy saving and environmental protection characteristics, so as to help you make full use of your energy.

We manufacture and offer:

Safety relief valve(Our hot products, we have price & performance advantages about safety valves, and we can offer you the best price and quality you want): Spring loaded safety valve, high pressure and high temperature safety valve, pilot operated safety valve, DIN Standard Safety Valve, etc...

Pressure Reducing Valve: Pilot Operated reducing valves, Direct Acting and Bellow Type Reducing Valves. etc.

Steam Trap: Free Float steam trap, Lever Ball Float steam trap, thermodynamic and thermostatic steam trap, inverted bucket steam trap, etc.

Besides, Other valves and pipe fittings like DIN Bellow sealed globe valves, Y Type Strainer also can be offered by us.

Our products are widely used in petroleum, chemical, metallurgy, power stationand some other fields. We can also design and manufacture the non-standard products according to Customers' requirements.

Our Products are in strict accordance with ISO 9001 International Quality Management System. We also have a complete inspection system to ensure the quality of our products. From the Market Researching to Designing and developing, from the material purchasing to furnishing, inspection and testing, from delivery to after sale service, every step is processed under the Standard Management. In order to produce the superior industrial valve and let the national-made valve replace imported valve, we always stick to the following principles: Ensure the Quality for Survival, Ensure the Continuous Innovation for Development, and ensure the high efficient service for Customers' satisfaction.

We would like to serve our esteemed customers with superior products, reasonable price and complete sales services. We pledge we will be your most reliable business partner always.

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