Inline Check Valves
National Pipe Thread (NPT) Inline Check Valves
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CONTACT PAGE| Female NPT to Male NPT | ||
|---|---|---|
| Part No. | Female NPT | Male NPT |
| 3022-20-*** | 1.25”-11.5 | 1.25”-11.5 |
| 3022-24-*** | 1.50”-11.5 | 1.50”-11.5 |
| 3022-32-*** | 2.00”-11.5 | 2.00”-11.5 |
| 3022-40-*** | 2.50”-8 | 2.50”-8 |
| 3022-48-*** | 3.00”-8 | 3.00”-8 |
| 3022-56-*** | 3.50”-8 | 3.50”-8 |
| 3022-64-*** | 4.00”-8 | 4.00”-8 |
| Female NPT to Female NPT | ||
|---|---|---|
| Part No. | Female NPT | Female NPT |
| 3023-20-** | 1.25”-11.5 | 1.25”-11.5 |
| 3023-24-** | 1.50”-11.5 | 1.50”-11.5 |
| 3023-32-** | 2.00”-11.5 | 2.00”-11.5 |
| 3023-40-** | 2.50”-8 | 2.50”-8 |
| 3023-48-** | 3.00”-8 | 3.00”-8 |
| 3023-56-** | 3.50”-8 | 3.50”-8 |
| 3023-64-** | 4.00”-8 | 4.00”-8 |
Sealum Industries offers check valves in three cracking pressures, 5 PSI, 30 PSI, and 50 PSI. The poppets are machined from 4140 heat treated steel, while the seats are machined from 65-45-12 cast iron. The bodies are stocked in C1018 steel, but are also available in 316 stainless steel upon request. The stem is welded to the poppet for a positive lock, and the entire assembly is held in the body with a retaining ring.
