valve sealing material is the key part of the valve sealing, it be direct contact with the valve sealing surface. What is the Industrial Valves sealing material, we know that the valve sealing ring material with metal materials and nonmetal materials. Below to introduce all kinds of sealing material applied standard, and its common types of valves

1, styrene-butadiene rubber

styrene-butadiene rubber resistant to acid and alkali, high temperature resistance, good corrosion resistance and other comprehensive can natural rubber. The application of styrene-butadiene rubber temperature t&le commonly; 150 ℃, natural rubber t≤ Class 60 ℃, vulcanized rubber to PN≤ 1 mpa cut-off valve, cut-off valve, diaphragm valve, butterfly valves, check valve, such as clip pipe valve valve sealing.

2, polyester

polyester with small friction resistance, good corrosion resistance and other properties. Polyester t&le to temperature; Class 90 ℃, PN≤ 32 mpa gate valve, globe valve, etc.

3, ptfe

ptfe t&le to temperature; Class 232 ℃, PN≤ 6. 4 mpa cut-off valve, globe Industrial Valves, gate Industrial Valves, etc.

4, pig iron

pig iron to temperature t≤ Class 100 ℃, PN≤ 1. 5 mpa, liquefied gas and raw oil cut-off valve, globe valve, plug valves, etc.

5, babbitt

t - babbitt to temperature Class of 70 ~ 150 ℃, PN≤ 2. 5 CPA ammonia with globe valve.

6, alloy copper

there are 6 - copper alloy common raw materials 6 - Tin bronze and 58-3 2 - 2, manganese copper, etc. Copper alloy wear-resisting performance is good, suitable temperature t≤ Class 200 ℃, PN≤ 1. Water and steam in 5 mpa, common cut-off valve, globe valve, check valve, plug valves, etc.

7, chromium stainless steel plate

common chromium stainless steel panel with 2 cr13 and 3 cr13 after heat treatment, corrosion resistant performance is good. Common in temperature t≤ Class 450 ℃, PN≤ 32 mpa materials such as water, steam and oil on the valve.

8, chromium, nickel titanium stainless steel plate

chromium nickel titanium common type 1 cr18ni9ti stainless steel plate, its corrosion resistance, abrasion resistance and heat resistance performance is good. Suitable temperature t≤ Class 600 ℃, PN≤ 6. 4 mpa steam, such as sodium cyanide, used to stop valve, gate valve, etc.

9, high frequency quenching steel

common model is 38 crmoala, high frequency quenching steel after nitriding, have excellent corrosion resistance and abrasion resistance. Common in temperature t≤ Class 540 ℃, PN≤ The power station valve for 10 mpa.

10, boronizing

boronizing by oil circuit board or raw materials production and processing immediately piston valve itself out of the plane, then carry out boronizing metal surface treatment, surface wear resistance is very good. For the power filter valve.

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