| ITEM | COMPONENT | MMATERIAL | QUANTITY |
| 1 | NUT | STAINLESS STEEL | 8 |
| 2 | GASKET | STAINLESS STEEL | 8 |
| 3 | BODY | U-PVC | 1 |
| 4 | BAFFLE | U-PVC | 1 |
| 5 | LINKAGE | U-PVC | 1 |
| 6 | GASKET | EPDM·NBR·FPM | 1 |
| 7 | BODY | U-PVC | 1 |
| 8 | SCREW | STAINLESS STEEL | 8 |
| 9 | BONNET | U-PVC | 1 |
SIZE: 3";
CODE: X9121
DESCRIPTION: Foot Valve (Baffle Type Cartridge)
| SIZE | NPT | BSPT | BS | ANSI | DIN | JIS | |||
| Thd./in | d1 | d1 | d1 | d1 | D | L | H | ||
| 80mm (3") | 8 | 11 | 89 | 89 | 90 | 89 | 107.4 | 174 | 277.6 |
Concept of foot valve
The foot valve is also called a check valve. It is a low-pressure flat valve. Its function is to ensure the one-way flow of the liquid in the suction pipe and make the pump work normally. When the pump stops working intermittently for a short time, the liquid cannot return to the water source tank to ensure The suction pipe is filled with liquid to facilitate the start of the pump.
The foot valve is divided into:spring foot valve,pump foot valve,water pump foot valve：
The foot valve is equipped with multiple water inlets on the valve cover and equipped with a screen to reduce the inflow of debris and reduce the probability of clogging of the foot valve. Although the foot valve is equipped with an anti-clogging screen, the foot valve is generally suitable for cleaning media, and the foot valve is not suitable for media with excessive viscosity and particles.
