One-way shut-off

Oxygen/GAS coupler is for safe cutting and high efficiency. It is made with double safety airtight structure so there is no gas leaking when removing. The plug that is put to torch has backdraft prevention valve inside avoiding the danger of backdraft due to gas mixture.

1) Can be used continuously within the working pressure

2) The maximum pressure coupler can bear and continuous use in impossible in maximum pressure.

3) The working temperature, highest and lowest temperature may differ by the working environment.

* Backdraft prevention function: prevents the danger of backdraft due to gas mix-up

KOIKE TYPE

Sortation		Item name
COUPLER		SH22(K)	5/16” HOSE	Oxygen type
		SH33(K)	5/16” HOSE	Gas type
PLUG		PFB22(K)	M16*1.5 R	Backdraft prevention plug
		PFB33(K)	M16*1.5 L	Backdraft prevention plug
		PHB22(K)	5/16” HOSE	Backdraft prevention plug
		PHB33(K)	5/16” HOSE	Backdraft prevention plug

NITTO TYPE

Sortation		Item name
COUPLER		SH21(N)	1/4” HOSE
		SH22(N)	5/16” HOSE
		SM22(N)	PT 1/4”
		SM23(N)	PT 3/8”
		SM24(N)	PT 1/2”
		SF22(N)	UNF
		SH33(N)	5/16" HOSE
		SM33(N)	PT 3/8"
		SM34(N)	PT 1/2"
PLUG		PFB22(N)	M16*1.5 R	Backdraft prevention plug
		PFB33(N)	M16*1.5 L	Backdraft prevention plug
		PHB22(N)	5/16” HOSE	Backdraft prevention plug
		PHB33(N)	5/16” HOSE	Backdraft prevention plug
		PH22(N)	5/16” HOSE	Through type plug(chromium plating)
		PH33(N)	5/16” HOSE	Through type plug(chromium plating)
		PF22(N)	UNF(9/16")	Through type plug(chromium plating)