Installation location of reciprocating compressor outlet check valve
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I would like to ask everyone, there are three reciprocating water and gas compressors, two open and one standby. Should the outlet check valve be installed at the front or rear end of the stop valve? Why?
Our compressors and pumps are installed in front of the valve for easy maintenance and replacement. Please see below. http://bbs.hcbbs.com/viewthread.php?tid=107705&extra=&highlight=%B1%C3%B3%F6%BF%DA&page=1
I feel like it should be placed in front of the valve so it's easier to replace. Because the air flow at the outlet of the reciprocating compressor is pulsating, the check valve needs to open and close frequently. Although it is not fully opened and closed, it has a certain impact on the life of the check valve.
I think it is much better to have specific drawings when buying a compressor and install it according to the drawings.
It is installed in front of the valve in the drawings and on site. I just don't understand why? After reading the answers on floors 1 and 2, it seems that it is just for the convenience of maintenance. Thank you everyone for participating in the discussion. There seems to be no objection for the time being. In addition, I would like to ask again whether the check valve can be of the swing type, because the lift type wears out too quickly. This post was last edited by eastnow on 2009-3-27 12:10 ]
Our compressor check valve is an air valve type.
Should be installed before the outlet valve.
Go to the site and take a look. Some one-way valves are designed after the stop valve, and some are designed in front of the stop valve. This post was last edited by Zhongyuan people on 2009-3-28 09:13 ]
The requirements for the reciprocating pump valve are relatively strict and should be before the outlet valve. But there is a question that I don’t quite understand. Will it cause trouble when replacing it?
They are all installed on the machine side. If installed on the system side, if it breaks down, the system must be shut down for maintenance.
The maintenance and replacement of the one-way valve should be considered. The system should be able to be removed separately as the standard.
I feel like it should be placed after the valve, between the compressor and the valve. Generally, the outlet valve does not open and close frequently. Check valve opens and closes frequently. Because the air flow at the outlet of the reciprocating compressor is pulsating, the check valve needs to be opened and closed frequently. Compared with the valve, the check valve is easily damaged. It is placed behind the valve for easy replacement. This post was last edited by cailong123 on 2009-4-8 11:02 ]
Our company's check valve is installed in front of the outlet valve, but some companies install it after the outlet valve.
Installed in front of the outlet valve, a gas valve type check valve is generally used.
For installation location refer to the following standard HGT 20570.18-95
Our configuration is compressor---MOV--CV--SDV
It is usually installed in front of the valve to facilitate the inspection and maintenance of the check valve.