A manufacturer of ship coupler, nipple, manifold and etc
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) | |
