KSBBFI/BSF Breather Valve with Flame Arrester

Pressure relief, vacuum relief and flame arresting combined in a single body, to API 2000 and BS 7244. The standard flame cell suits NEC group D or IEC IIA gases, with cells for other gas groups available as extras.

Type

Vent to atmosphere, with integral flame arrester

Design code

API 2000 and BS 7244

Flame cell

Standard cell suitable for NEC group D or IEC IIA gases; cells for other gas groups available as additional extras

Setting range (KSBBFI, weight loaded)

±20 mmW.C minimum to ±700 mmW.C maximum

Setting range (KSBSFI, spring loaded)

±700 mmW.C minimum to ±7,000 mmW.C maximum

Size range

50 mm to 300 mm

Connection

ANSI 150lb FF flange as standard; different connections available on request

Body materials

Aluminium, carbon steel, 304SS, 316SS, with various trims

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