Pressure maintenance valve of non-adjustable screw unit
Basic product information : | |
Product name | Constant pressure valve |
Test pressure | 4.5Mpa
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Check seal test pressure | 0.2Mpa(Reverse inlet) |
Open pressure difference | 0.36-0.5(±0.03)Mpa |
Temperature arrangement | -30°C +150°C |
Suitable medium | R22. R507. R407C. R410A etc. Refrigerants and other refrigerating oil; |
Company information
We are specialized in Semi-hermetic compressor ,HVAC pipe valve,like ammonia valve ,Bitzer/carrier/copeland compressor service valve since 1992 .Passed CE,SGS,TUV,ISO9001 certificate . Product exports Italy ,USA,Singapore and other countries.
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Specifications | Model | H | H1 | H2 | L | L1 | ΦA |
1" | BYF-25 | 172.5 | 146.5 | 65 | 91 | 24.5 | Φ28.8 |
1.5" | BYF-25 | 285.5 | 234.5 | 118 | 136 | 35 | Φ49 |
2" | BYF-25 | 289.5 | 235.5 | 123.5 | 147.5 | 40 | Φ55 |
2.5" | BYF-25 | 353 | 288.5 | 130 | 164.5 | 40 | Φ80 |
3" | BYF-25 | 408.5 | 349.5 | 158 | 173.5 | 40 | Φ80.5 |
4" | BYF-25 | 456.5 | 381.5 | 161.5 | 203 | 50 | Φ106 |
5" | BYF-25 | 321.5 | 461.5 | 161 | 277 | 45 | Φ134 |
Note:
1.External balance tube should used by metal tube, which the diameter is greater than 4mm above,to avoid any line carefully throttling effect,and make the constant pressure valve when using the opening pressure is less than the design value.
2.Inlet of constant pressure valve is perpendicular to the ground,Angle shall not be more than 15dgresss.
3.Ensure the installation and the system to prevent impurities will be constant pressure valve thumb jammed and damaged seals,constant pressure valve failure.
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Liyongda refrigeration machinery co.,ltd is a large general valve manufacturer in China. Different valve products, models, materials and technology requirements.The price of the specific products is subject to the real-time inquiry. Please contact and consult the buyer before placing the order.
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