Safety Valves

News:

We have changed the order numbers for articles with set pressure, i.e. all blow-off and safety valves. The ordering code for the component-tested safety valve 351 illustrates the systematics.

Example

If you previously ordered the safety valve DN 8 with connection G ¼ with 10 bar with 351.227, then this now corresponds to 351.227-10.0. If you additionally require a test certificate (works certificate 2.2 to EN 10204:2004), this would be order number 351.227-10.0E.

Downloads

Safety valves serve to blow out non-poisonous and nonflammable gases into the atmosphere in order to protect pressure tanks against overpressure.

Please note: Only safety valves that have been set and sealed by us can be delivered with the component symbols, it is thus absolutely necessary to indicate the setting pressure in bar. As functional test, safety valves may be aerated by the way of pulling the hauloff bolt. Repairs may only be carried out by the manufacturer.

Definitions

Set pressure = start-to-leak pressure	Beginning of audible leaking
Opening pressure	Valve completely open, maximum blow-off / deflation
Closing pressure	Valve is closed and sealed (tight)
Opening pressure difference	Difference between start-to-leak pressure and opening pressure
Closing pressure difference	Difference between start-to-leak pressure and closing pressure

Examples

Set pressure	12,0 bar
Opening pressure (+10%)	13,2 bar
Closing pressure (-10%)	10,8 bar

News:

Example

Downloads

Cataloque pages (PDF)

Safety valves article master data (Excel)

Definitions

Examples

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