Size : 25 NB to 450 NB
Pipe Material : 106 grade B Sch 40 from 25 NB to 150 NB
Flanges Used : ASTM A 105/IS 2062
Hydro Test : at 29.8 Kg/cm2
Spark Test : 15 KVA
PIPE : 1. SEAMLESS CS ASTM A106 GR.B, SCH.-40, 2. ASTM A312 TP 304, SCH.-40
FLANGE : 1. IS 2062 / ASTM A105, 2. ASTM A351 GR. CF8
It is a standard metal valve that has a thick plastic layer bonded to the inside surfaces. This plastic lining shields the metal from the fluid.
The internal lining creates a protective barrier between the process media and the metal valve body
You use these mostly in chemical plants. They are common for handling strong acids, bleach, sulfuric solutions and in semiconductor manufacturing cleanrooms.
You get the same corrosion protection as a solid titanium or alloy valve, but at a much lower price point, making it a more cost-effective option.
The outer body is usually cast iron or carbon steel. For the inside lining, manufacturers use fluoropolymers like PTFE or PFA.
Check your chemicals first. You also need to look at the exact temperature of the liquid and if the system runs under a vacuum.
You need to check for leaks around the seals. It is also smart to inspect the internal plastic for cracks during scheduled shutdowns.
Yes. You can get them as ball valves, butterfly valves or diaphragm types, depending on how you need to control the flow.