Breeching Inlet

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The breeching inlet can only be used in dry riser systems. The inlet connection is installed at the entrance of fire building, while the outlet connection is installed at a special spot.
It meets the standard of BS 5041 Part-3: 1975, and the inlet meets the standard of BS 336: 1989, including drain valve and check valve whose rated pressure is PN16.

Specification:
Standard Certificate to BS 5041-3 Approve by BSI
Body Ductile Cast iron
Drain valve 1" gate valve BS 5154
Non – return Test 1.7 bar
Inlet Copper alloy to male instantaneous coupling with NRV to BS 336
Outlet 4" flange for 2-way,6" flange for 4-way
Blank cap Plastics or Rubber
Surface Red or yellow painting
Test pressure 30 bar
Working pressure 20 bar

Size	H(mm)	W(mm)	D(mm)	Connections
DN100	225	300	100	2*BS336
DN100	225	300	100	2*2.5''BSP
DN150	215	330	150	4*BS336
DN150	215	330	150	4*2.5''BSP

Certificate

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