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.

 Coupler material

 BODY

 BSBM

 SOCKET

 BSBM

 SLEEVE

 BSBM

 plug material

 BSBM

 working pressure 1)

 7kgf/cm2

 maximum pressure 2)

 10kgf/cm2

 Seal(NBR) operating temperature 3) 

 -20℃~+80℃

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)