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Relevant requirements for valve parts

Views:91     Author:JOC MACHINERY CO., LTD.     Publish Time: 13-10-2021      Origin:https://www.jocmachinery.com/

Valve parts are the important parts that make up the valve, which is very important to the quality of the valve. So what are the relevant requirements for valve parts? Let's take a look together next.

Here is the content list:

Installation requirements for valve parts

Assembly requirements for valve parts

Valve parts acceptance requirements

Installation requirements for valve parts

1. Before installing the valve, carefully check whether the model and specifications of the valve parts used are consistent with the design;

2. According to the model of valve parts and factory manual, check whether the valve can be used under the required conditions;

3. When the valve is hoisted, the rope should be tied to the flange connection between the valve body of the valve parts and the bonnet, and must not be tied to the handwheel or valve stem, so as not to damage the valve stem and handwheel.

4. When installing a valve on a horizontal pipeline, the valve parts should be vertically upward, and the valve parts are not allowed to be installed downward;

5. When installing the valve, the valve parts shall not be connected by a forced pairing, to avoid damage due to uneven force;

6. Rising stem gate valves should not be installed in damp underground places to avoid corrosion of valve parts.

Assembly requirements for valve parts

The cleaned valve parts must be sealed and stored to facilitate valve installation. The valve installation process requirements are as follows:

1. The valve parts installation workshop must be clean or set up a temporary clean area, such as newly purchased color striped cloth or plastic film, etc., to prevent the valve parts from entering dust during the installation process.

2. Valve parts assemblers must wear clean cotton overalls, cotton caps, no leakage of hair, clean shoes on feet, plastic gloves on hands, and degreasing.

3. Valve parts assembly tools must be degreased and cleaned before assembly to ensure cleanliness.

Valve parts acceptance requirements

1. The model required for the acceptance of valve parts should be marked with the national standard number requirement. If it is a corporate standard, it should indicate the relevant description of the valve parts acceptance model.

2. The working pressure of the valve must be greater than or equal to the working pressure of the pipeline. Under the premise of not affecting the price, the acceptable working pressure of the valve parts acceptance requirement should be greater than the actual working pressure of the pipeline.

3. The acceptance standard of gate valve parts needs to be judged according to the manufacturing standard, and the national standard number on which the gate valve parts are based should be indicated. If it is a corporate gate valve parts standard, the purchase contract should be accompanied by corporate documents.

The above is about valve parts installation requirements, if you are concerned about valve parts, gate valve parts, and ball valve parts If you are interested, you can contact us. Our website is http://www.jocmachinery.com. I look forward to your coming and hope to cooperate with you.

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