Brand Name: liyongda
Model Number: 1.5 /2/2.5/3/4
Place of Origin: Zhejiang, China (Mainland)
Basic product information
Basic product information : |
|
Product name |
Pressure remain valve |
Opening pressure difference : |
0.36+/-0.03Mpa |
The maximum bearing capacity : |
2.8mpa |
Temperature arrangement |
Under 30 degree ~above 120 degree |
Pressure loss : |
0.01Mpa |
Suitable medium : |
R22,R134A,R407C,R410A |
Size (inch) |
1.5 / 2/ 2.5/ 3/ 4 |
Company information We are specialized in Semi-hermetic compressor ,HVAC pipe valve,like ammonia valve ,Bitzer/carrier compressor service valve since 1992 .Passed CE,SGS,TUV,ISO9001 certificate . Product exports Italy ,USA,Singapore and other countries.
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Product : pressure relief valve (adjustable/unadjustable)
Model list :
SIZE(Inch) |
φA |
φB |
φC |
φD |
φE |
F |
F1 |
F2 |
H |
L |
L1 |
G |
I |
φK |
Z-Md |
Z-φd |
1-1/2 |
49 |
60 |
75 |
52 |
76 |
22 |
6 |
5 |
226 |
88 |
118 |
109 |
108 |
105 |
4-m16 |
4-φ18 |
2 |
63 |
70 |
90 |
63 |
91 |
22 |
6 |
5 |
235 |
96.5 |
123 |
122 |
122 |
120 |
4-m16 |
4-φ18 |
2-1/2 |
79 |
90 |
110 |
82 |
111 |
22 |
6 |
5 |
287 |
103 |
130 |
134 |
135 |
140 |
4-m16 |
4-φ18 |
3 |
90 |
100 |
120 |
93 |
121 |
25 |
6 |
5 |
346 |
117 |
158 |
152 |
152 |
160 |
4-m20 |
4-φ22 |
4 |
110 |
125 |
145 |
115 |
146 |
26 |
6 |
5 |
279 |
131 |
161 |
171 |
171 |
185 |
4-m20 |
4-φ22 |
Application :
1.Help starting compressor under low temperature
. The valve is used for condensing unit system .which help start compressor available in low temperature .Because in low temperature .the high pressure terminal of compressor lock of high pressure .Then the pressure difference is locked between high pressure terminal and low pressure terminal . the compressor can not be started for this problem . And the compressor will be damaged .The valve helps to provide enough pressure difference for starting compressor .
2.For checking and turn off in cooling system .
When compressor is closed ,it can cut the connection between compressor and discharge pipe ,which avoid of high pressure gas back flow.