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NPT, ISO Tapered, ISO Parallel, Metric and SAE/MS thread standards. Filter by fitting type, size and thread. Expand any row for full specs and to request a quote.
| Part No | Fitting Type | Material | P1 Size | P1 Thread | P2 Size | P2 Thread | Length | Quote | |
|---|---|---|---|---|---|---|---|---|---|
| PBHU-10G-SS | Bulkhead Union | SS | 5/8 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-12G-SS | Bulkhead Union | SS | 3/4 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-16G-SS | Bulkhead Union | SS | 1 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-20G-SS | Bulkhead Union | SS | 1 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-24G-SS | Bulkhead Union | SS | 1 1/2 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-4G-SS | Bulkhead Union | SS | 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-6G-SS | Bulkhead Union | SS | 3/8 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-8G-SS | Bulkhead Union | SS | 1/2 | ISO Parallel (BSPP) | — | — | — | ||
| PME-10G-SWL-SS | Union Elbow | SS | 5/8 | ISO Parallel (BSPP) | — | — | — | ||
| PME-12G-SWL-SS | Union Elbow | SS | 3/4 | ISO Parallel (BSPP) | — | — | — | ||
| PME-16G-SWL-SS | Union Elbow | SS | 1 | ISO Parallel (BSPP) | — | — | — | ||
| PME-20G-SWL-SS | Union Elbow | SS | 1 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PME-24G-SWL-SS | Union Elbow | SS | 1 1/2 | ISO Parallel (BSPP) | — | — | — | ||
| PME-2G-SWL-SS | Union Elbow | SS | 1/8 | ISO Parallel (BSPP) | — | — | — | ||
| PME-4G-SWL-SS | Union Elbow | SS | 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PME-6G-SWL-SS | Union Elbow | SS | 3/8 | ISO Parallel (BSPP) | — | — | — | ||
| PME-8G-SWL-SS | Union Elbow | SS | 1/2 | ISO Parallel (BSPP) | — | — | — | ||
| PSC-12G-16G-SWL-SS | Swivel Connector | SS | 3/4 | ISO Parallel (BSPP) | 1 | ISO Parallel (BSPP) | — | ||
| PSC-12G-8G-SWL-SS | Swivel Connector | SS | 3/4 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PSC-12G-SWL-SS | Swivel Connector | SS | 3/4 | ISO Parallel (BSPP) | 3/4 | ISO Parallel (BSPP) | — | ||
| PSC-16G-SWL-SS | Swivel Connector | SS | 1 | ISO Parallel (BSPP) | 1 | ISO Parallel (BSPP) | — | ||
| PSC-4G-6G-SWL-SS | Swivel Connector | SS | 1/4 | ISO Parallel (BSPP) | 3/8 | ISO Parallel (BSPP) | — | ||
| PSC-4G-8G-SWL-SS | Swivel Connector | SS | 1/4 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PSC-4G-SWL-SS | Swivel Connector | SS | 1/4 | ISO Parallel (BSPP) | 1/4 | ISO Parallel (BSPP) | — | ||
| PSC-6G-4G-SWL-SS | Swivel Connector | SS | 3/8 | ISO Parallel (BSPP) | 1/4 | ISO Parallel (BSPP) | — | ||
| PSC-6G-8G-SWL-SS | Swivel Connector | SS | 3/8 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PSC-6G-SWL-SS | Swivel Connector | SS | 3/8 | ISO Parallel (BSPP) | 3/8 | ISO Parallel (BSPP) | — | ||
| PSC-8G-12G-SWL-SS | Swivel Connector | SS | 1/2 | ISO Parallel (BSPP) | 3/4 | ISO Parallel (BSPP) | — | ||
| PSC-8G-6G-SWL-SS | Swivel Connector | SS | 1/2 | ISO Parallel (BSPP) | 3/8 | ISO Parallel (BSPP) | — | ||
| PSC-8G-SWL-SS | Swivel Connector | SS | 1/2 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PSU-10G-SWL-SS | Swivel Union | SS | 5/8 | ISO Parallel (BSPP) | 5/8 | ISO Parallel (BSPP) | — | ||
| PSU-12G-8G-SWL-SS | Swivel Union | SS | 3/4 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PSU-12G-SWL-SS | Swivel Union | SS | 3/4 | ISO Parallel (BSPP) | 3/4 | ISO Parallel (BSPP) | — | ||
| PSU-16G-SWL-SS | Swivel Union | SS | 1 | ISO Parallel (BSPP) | 1 | ISO Parallel (BSPP) | — | ||
| PSU-20G-SWL-SS | Swivel Union | SS | 1 1/4 | ISO Parallel (BSPP) | 1 1/4 | ISO Parallel (BSPP) | — | ||
| PSU-24G-SWL-SS | Swivel Union | SS | 1 1/2 | ISO Parallel (BSPP) | 1 1/2 | ISO Parallel (BSPP) | — | ||
| PSU-4G-4G-SWL-SS | Swivel Union | SS | 1/4 | ISO Parallel (BSPP) | 1/4 | ISO Parallel (BSPP) | — | ||
| PSU-6G-4G-SWL-SS | Swivel Union | SS | 3/8 | ISO Parallel (BSPP) | 1/4 | ISO Parallel (BSPP) | — | ||
| PSU-6G-SWL-SS | Swivel Union | SS | 3/8 | ISO Parallel (BSPP) | 3/8 | ISO Parallel (BSPP) | — | ||
| PSU-8G-4G-SWL-SS | Swivel Union | SS | 1/2 | ISO Parallel (BSPP) | 1/4 | ISO Parallel (BSPP) | — | ||
| PSU-8G-6G-SWL-SS | Swivel Union | SS | 1/2 | ISO Parallel (BSPP) | 3/8 | ISO Parallel (BSPP) | — | ||
| PSU-8G-SWL-SS | Swivel Union | SS | 1/2 | ISO Parallel (BSPP) | 1/2 | ISO Parallel (BSPP) | — | ||
| PU-12N-SS | Union | SS | 3/4 | NPT | — | — | — | ||
| PU-12R-SS | Union | SS | 3/4 | ISO Tapered (BSPT) | — | — | — | ||
| PU-16N-SS | Union | SS | 1 | NPT | — | — | — | ||
| PU-16R-SS | Union | SS | 1 | ISO Tapered (BSPT) | — | — | — | ||
| PU-2N-SS | Union | SS | 1/8 | NPT | — | — | — | ||
| PU-2R-SS | Union | SS | 1/8 | ISO Tapered (BSPT) | — | — | — | ||
| PU-4N-SS | Union | SS | 1/4 | NPT | — | — | — | ||
| PU-4R-SS | Union | SS | 1/4 | ISO Tapered (BSPT) | — | — | — |
In threaded pipework, every rigid joint has to be turned to tighten it, which makes it hard to remove one component without unscrewing everything after it. Pipe unions solve this. A union has two threaded ends joined by a separate nut, so the line can be split at that point and a gauge, valve or transmitter removed without rotating the pipe on either side.
This group includes standard unions, bulkhead unions, swivel unions, swivel connectors and union elbows. The bulkhead union passes through a panel or enclosure wall and is clamped in place, giving a fixed through-wall connection. Swivel unions and swivel connectors allow one end to rotate freely, so the fitting can be lined up and tightened without turning the attached equipment. The union elbow combines a 90° turn with a break point, which is useful on tight panel layouts.
These parts are SS316 and the range is centred on ISO parallel (BSPP) threads, from 1/8" to 1-1/2". Parallel threads need a bonded washer or O-ring at the port to seal, so check the sealing arrangement when ordering. Typical uses include panel mounting, subsea and refinery service.
