Can a hose be used to supply air to pneumatic valves?
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Whether a hose can be used to supply air to pneumatic valves depends on the environment?
It’s not allowed in explosion-proof environments; other options can be used as temporary substitutes
Please refer to the table below: 4.0.1 Selection Table for Pneumatic Signal Pipelines – Material and Type. Pipe routing behind the control panel, Control room, General areas, Corrosive environments: Copper tube – O, O, O, *; Copper tube with PVC coating – *, O, O, O; Copper pipe cable with PVC coating – *, *, O, O; Stainless steel tube – *, *, O, O; Polyethylene tube – O, *, *, *; Polyethylene pipe cable – *, *, O, O; Nylon tube – O, *, *, *; Nylon pipe cable – *, *, O, O. Note: “0” indicates suitability; “*” indicates unsuitability.
I would like to ask which standard this comes from?
Hoses can be used in non-explosion-proof areas
Hoses can be used in non-explosion-proof areas
Stainless steel pipes are used in most explosion-proof areas, while copper pipes are used in a few
Use a plastic hose for the melt cut-off valve