L18 - Check Valves
Features and Benefits
- Ball-type and diaphragm check valves are available to meet a variety of specifications.
- Either valve type provides positive drip-free shut-off to maintain line pressure during on-and-off spraying cycles.
- Ball-type valves feature a choice of 5, 10 or 20 psi (0.35, 0.7 or 1.5 bar) rated stainless steel springs.
- Diaphragm-type valves offer line flows without pressure drop through the valve.
AB
Ball-type
1/8" to 1/4" NPT or BSPT
BB
Ball-type
1/4" NPT or BSPT
10742A
Diaphragm-type
1/4" NPT or BSPT
12328
Diaphragm-type
1/2" to 3/4" NPT or BSPT
Materials
| Material | Material Code |
Valve Type | |||
| AB | BB | 10742A | 12328 | ||
| Aluminum | AL | • | • | ||
| Brass | (none) | • | • | • | |
| Stainless Steel | SS | • | • | ||
| Nylon | NYB | • | |||
|
Other material options available upon request. |
|||||
Specifications
| Check Valves |
Maximum Pressure |
Maximum Flow Rate gpm (l/min) |
Spring Rates | Opening Pressure |
| AB | 125
psi (9 bar) |
2 (8) | 5, 10 or 20 psi (0.35, 0.7 or 1.5 bar) |
– |
| BB | 0.5 (2) | |||
| 10742A | – | 2 (8) | – | 7 psi (0.5 bar) |
| 12328 | – | 15 (57) |
Ordering Info
| Diaphragm Check Valve | ||||
| 12328 | – | 1/2 | – | NYB |
| | | | | | | ||
| Check Valve Type |
Inlet/ Outlet Conn. |
Material Code |
||
| Diaphragm Check Valve | ||
| 10742A | – | 1/4 |
| | | | | |
| Check Valve Type |
Inlet/ Outlet Conn. |
|
| Ball-Type Check Valves | ||||
| 1/8 | AB | – | SS | 20 |
| | | | | | | | | |
| Inlet/ Outlet Conn. |
Check Valve Type |
Material Code |
Spring Rating (psi) |
|
BSPT connections require the addition of a “B” prior to the inlet connection.
