Prevost PPS1 RSIM Male NPT Piping Valves
Transitions between compatible PPS pipe and a male NPT threaded connection with manual shutoff.
Choosing the Correct Model
Match the exact part number and connection arrangement. PPS pipe outside diameter, threaded port size and Compact Connection (CC) interface are different specifications. Photos may show several models; use the model table to identify what is supplied.
Manufacturer Specifications
| Specification | Details |
|---|---|
| Maximum operating pressure | 232 psi |
| Temperature | -4°F to 176°F |
Model Selection and Specifications
| Manufacturer part number | Connections / configuration | Photo reference |
|---|---|---|
| PPS1 RSIM16253 | Pipe/interface 1/2"; NPT1/2 | 1. |
| PPS1 RSIM20253 | Pipe/interface 3/4"; NPT1/2 | 1. |
| PPS1 RSIM25254 | Pipe/interface 1"; NPT3/4 | 1. |
| PPS1 RSIM32255 | Pipe/interface 1 1/4"; NPT1 | 1. |
| PPS1 RSIM40256 | Pipe/interface 1 1/2"; NPT1 1/4 | 1. |
| PPS1 RSIMA50257 | Pipe/interface 2"; NPT1 1/2 | 2. |
Dimensions
| Reference | A inch | B inch | C inch | D inch |
|---|---|---|---|---|
| PPS1 RSIM16253 | 1.26 | 5.12 | 2.52 | 0.94 |
| PPS1 RSIM20253 | 1.5 | 5.12 | 2.6 | 0.94 |
| PPS1 RSIM25254 | 1.81 | 5.24 | 2.95 | 1.06 |
| PPS1 RSIM32255 | 2.24 | 6.3 | 3.35 | 1.42 |
| PPS1 RSIM40256 | 2.68 | 6.63 | 3.9 | 1.85 |
| PPS1 RSIMA50257 |
Some additional configurations are identified in Prevost’s catalog and current price list rather than the online table. Dimensions vary by model; contact us before ordering if an unlisted clearance dimension is critical.
Installation and Compatibility
Use compatible Prevost components and follow the current manufacturer instructions. Confirm the thread standard, pipe outside diameter, CC or flange interface and control requirements before ordering. Match any remote pilot and electrical supply to the selected control equipment.
Shipping and Availability
Contact Compressed Air Advisors for current availability and lead time. Free standard shipping on eligible domestic orders of $199 or more. Destination restrictions and expedited charges may apply.
Frequently Asked Questions
Does a matching inch size guarantee compatibility?
No. Pipe sockets, CC interfaces, flange connections, NPT threads, BSPP threads and mounting threads serve different purposes. Use the exact model specifications.
What is included?
The selected manufacturer item or the specifically listed kit. Other components shown in range photographs are separate unless expressly included.
Shop the Prevost Piping System collection. Manufacturer information.