冷凝压力调节阀 英文说明书:压力调节阀

PRV series

Product description

PRV series condensing pressure control valves are normally installed on the coolant pipe of a condenser (usually on the entrance). Because the PVR series can adjust the flow rate of the coolant by sensing the refrigeration recycling pressure according to changes in condenser pressure, the result is a significant improvement in coolant use efficiency. In this manner, PRV series vales are able to provide on demand cooling. When condenser pressure is raised in the compressor, the valves will be opened automatically so that there is more coolant moved into the condenser to quicken the refrigeration cooling process. Alternately, coolant levels will become lower with the pressure falling and valves being closed automatically, therefore the condensing pressure is kept within a normal operating range.

PRV series valves adjusting method: The adjusting lever can be rotated when regulating, the controlling pressure raises by rotating clockwise, alternately by rotating counter clockwise the pressure drops.

Type parameter

Opening

Kv Max. Max. test

Max. working pressure Adjusting range working

pressure m 3/h pressure Medium Max. (℃) pressure （MPa ）(MPa) (MPa)

(MPa) (MPa)

0.8 2.5 3.2

R134a R22

PRV-032G

R407C

PRV-040G PRV-050G PRV-065G …… PRV-010G PRV-015G

0.7-2.5

PRV-020G PRV-025G PRV-032G PRV-040G PRV-050G PRV-065G ……

1.5-2.9

R410A

High pressure

3.2 5.0

7.1 9 11.8 13.52 ……

R404A/507

9 11.8 13.5 …… 0.8 2.5

5．2

0.75

7.1 5.0

Type

Refrigerant

PRV-010G PRV-015G PRV-020G PRV-025G

Low pressure

Kv value indicates the flow rate when the medium pressure through valve is 1bar , unit=m

3/h，density ρ=1000kg/m3

PRV series

Dimension

Type PRV-010Ｇ PRV-015G PRV-020G PRV-025G PRV-032G PRV-040G PRV-050G PRV-065G

Condenser port 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth 6mm(1/4in) bell mouth

Liquid port

3/8 G1/2 G3/4 G1 G1-1/4 G1-1/2 G2 G2-1/2 G3

Dimension (mm) Length (L)

100 84 84 100 110 110 120 125 130

Height (H)

170 204 204 220 230 230 250 265 270

PRV-080G

Installation

1、The capillary tube can be connected to the top of the condenser when installing, the entry port to the corresponding cooling pipe, exit port to the coolant entry port of the condenser.

2、The pressure is set to 7.5 bar by factory, users can adjust it properly. You can rotate the adjusting lever when regulating, the controlling pressure raises by rotating clockwise, alternately by rotating counter clockwise the pressure drops.

Overall dimension

PRV series

Additional parts

Type ZTG

T001 T001 T002

T

01

Details Copper tube Picture 1:

One end is 7/16″, one end

is pin valve

T

Picture 2:

Both ends are 7/16″

Copper tube ￠

One meter Two meters Five meters

￠3 ￠5 ￠6

010205

Picture 1 Picture 2

in valve Bell mouth

Size (inch) 1/4〞 3/8〞 1/2〞 5/8〞 3/4〞 7/8〞 1〞

Pipe diameter (mm)

6 10 13 16 19 22 25