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永嘉工奥阀门有限公司

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 永嘉工奥阀门有限公司

China/Zhejiang

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Current:Home » Product Categories » » Full Lift Safety Valve
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Full Lift Safety Valve
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Product:
Brand: Goole 
Price: Negotiable 
MOQ:  
Total supply:
Delivery time: From the date of payment from the buyer within days of delivery
update time: 2024-04-21 01:00  Valid to:Long-term effective
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 BWA42Y Jacketed Bellow Type Backpressure Balanced Safety Valve  

is often used for the pipelines with toxic or corrosive medium.It's often supplied with closed bonnet with or without lever.We Goole can also offer jacketed bellow type balanced Full Lift safety valve which is used for equipment of polysester, ethylene, urea, etc. This safety valve is equipped with a heating jacket and steam purging connectors to ensure safe operation of the system.
Jacketed Bellow Type Backpressure Balanced Full Lift Safety Valve (GBWA42Y)


 
BWA42Y Jacketed Bellow Type Backpressure Balanced safety valve  should be used in the following condition:
1.When a double tightness barrier is required by the process fluid in the secondary pressure zone of the safety relief valve.
2.When the valve is subjected to a back pressure of between 10% and 50% of the set pressure.
3.When a conventional safety relief valve discharges against a back pressure,the opening pressure is the set pressure with atmospheric back pressure augmented by the actual superimposed back pressure just before the valve opens.
 
If  the back back pressure is variable,then the opening pressure of a conventional valve will also be variable.
 
To solve this problem,it is highly recommended to use a BWA42Y Jacketed Bellow Type Backpressure Balanced safety valve . The effective area of the bellows is substantially the same as the seating area of the disc on the nozzle and the bellows is vented to atmosphere through a hole drilled into the bonnet wall.The opening pressure of the safety relief valve is then independent of the back pressure.

   BWA42Y Jacketed Bellow Type Backpressure Balanced safety valve Dimension

Size (Inlet X Outlet)

 

L

L1

H

3/4 "×1 1/2 "

130

124

420

1"×2(2 1/2 ")

134

125

440

1 1/2 " ×2 1/2 "(3)"

150

140

560

2"×3"

155

150

590

3"×4"

185

170

740

4"×6"

225

200

890

6"×8"

256

240

180

6"×10"

282

269

1130

8"×10"

310

280

1280

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