Daily maintenance of sanitary grade quick install valve

During the operation of the sanitary grade quick installation valve, the bolts and screws on the valve body should be kept intact, and no looseness is allowed. If the fastening nut on the handwheel is found loose, it should be tightened in time to avoid losing the handwheel.Packing gland does not allow skew or no pre - tight clearance.To be susceptible to rain, snow, dust, sand and other dirt in the environment of the sanitary valve, the valve stem to install protective cover.The scale on the sanitary grade quick installation valve should be kept complete, accurate and clear, the seal, cap, pneumatic accessories should be complete and complete, in addition is not allowed in the operation of the sanitary grade quick installation valve to knock, stand or support the weight.

In general, the sanitary quick-loading valve cannot be placed in the following environment:

1, outdoor equipment, there is wind, sand, rain, sun erosion.

2. Flammable, explosive gas or dust environment.

3. Humid and hot belt and dry tropical environment.

4. Medium temperature is above 480℃ and below -20℃.

Daily sanitary grade quick installation valve maintenance

1, should be stored in a dry and ventilated room, both ends of the passage must be blocked.

2, long-term storage should be regularly checked, although it is stainless steel material, but still to remove surface dirt, extend the life.

3. After installation, regular inspection shall be conducted. Main inspection items:

(1) sealing surface wear.

(2) whether the internal sealing ring is damaged, if any damage should be replaced in time.

(3) sealing performance test.

What are the precautions for the use of sanitary grade quick installation valve products

1, before the installation of the sanitary grade quick-install valve, should carefully check the used model, specification and design;

2. According to the model number of the sanitary grade quick-install valve and the factory manual, can the check be used under the required conditions?

3, when lifting, the rope should be tied to the valve body and bonnet flange connection, and do not tie on the handwheel or stem, to avoid damage to the stem and hand wheel;

4, in the horizontal pipeline installation, the valve stem should be vertical upward, not allowed to install the valve stem downward;

5. During installation, do not use the forced pair connection method, so as to avoid damage caused by uneven stress;

6, open stem gate valve should not be installed in the underground damp place, to avoid stem corrosion.