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BRV7 Direct Acting Bellows Pressure Reducing Valve
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
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Standard or Nonstandard:
Standard
Structure:
Pressure Reducing
Pressure:
Medium Pressure
Payment & Shipping
Payment Methods:
Port of Shipment:
NINGBO
Delivery Detail:
Delivery time depends on order quantity.
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Standard or Nonstandard
Standard
Structure
Pressure Reducing
Pressure
Medium Pressure
Power
Pneumatic
Material
Forged
Temperature of Media
Medium Temperature
Media
Water
Place of Origin
Zhejiang, China
Brand Name
WD
Specifications
BRV7 Direct Acting Bellows Pressure Reducing Valve
BRV7 Direct Acting Bellows Pressure Reducing Valve BRV71 BRV73
Structural Characteristic and 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 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.
BRV71 Screwed NPT connections
BRV73 Flanged PN16,ANSI 150 or JIS 10 connections.
BRV73 Flanged PN16,ANSI 150 or JIS 10 connections.
Main Technical Parameters And Indexes Of Performance
Nominal pressure |
PN1.6Mpa |
Tested pressure of shell |
2.4Mpa |
Sealing test pressure |
1.76Mpa |
Maximum upstream pressure |
1.0Mpa |
Maximum downstream pressure |
0.9Mpa |
Pressure range of outlet |
0.014-0.9Mpa |
Medium |
Water, steam, liquid, air, oxygen, nitrogen, etc. |
Operating temperature |
≤ 210 °C |
Material Of Main Component
Name of component |
Material of component |
Valve body,bottom cover,valve cover |
cast steel / CF8 |
valve flap Valve rod ,Valve seat |
CF8 |
bellows |
1Cr18Ni9Ti |
Membrane Handwheel |
Heat-resistant plastic |
Spring of main valve |
50CrVA |
Adjusting spring |
60Si2Mn |
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Business Type
Trading Company
Year Established
2009
Factory Size
Below 1,000 square meters
Total Employees
51 - 100 People
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