Rain Bird RD04SP45NP 4-Inch SAM 45 PSI Spray Body — Non-Potable
Brand: Rain Bird | SKU: RD04SP45NP
Product Overview
Match a non-potable rotary-nozzle zone with 45 psi regulation and a SAM check valve using Rain Bird RD04SP45NP. This purple-marked 4-inch pop-up model does not include Flow-Shield. Check the 6-inch body depth and bottom connection, then choose a separate nozzle for the required watering pattern.
Key Features
- Triple-Blade Wiper Seal balances flushing and debris protection.
- Debris pockets help keep grit from recirculating inside the body.
- Reinforced ratchet ring supports nozzle-pattern alignment.
- Top-access internal components simplify service.
- Built-in 45 psi pressure regulator.
- SAM check valve helps prevent low-head drainage across elevation changes up to 14 feet.
- Purple non-potable identification with “DO NOT DRINK / NO BEBA” warnings and symbol.
Common Uses
- Non-potable rotary-nozzle layouts requiring regulated pressure and drainage protection.
- Replacing a matching RD1800 body after checking pop-up height, features and inlet fit.
Technical Specifications
- Merchant SKU: RD04SP45NP; manufacturer designation: RD04-S-P45-NP.
- Pop-up body: RD1800 4-inch model; nozzle not included.
- Inlet: 1/2-inch female NPT; SAM model uses bottom inlet only.
- Current model-specific technical operating range: 25–100 psi.
- Regulator target: 45 psi; technical regulation range: 50–100 psi inlet. Adequate operating pressure and flow are required.
- SAM check-valve capability: up to 14 feet of elevation head.
- Flow-Shield option: not included.
- Water-use identification: non-potable, purple-marked.
- Watering arc, radius and flow are determined by the selected nozzle and operating conditions.
Dimensions
- Body height: 6 inches.
- Pop-up height: 4 inches.
- Exposed surface diameter: 2-1/4 inches.
Compatibility & Installation Notes
Check finished grade, the 6-inch body height and the 4-inch pop-up stroke. Connect through the bottom inlet; the SAM check valve relies on that bottom connection.
Measure operating pressure and confirm the supply supports the 45 psi nozzle target and combined zone demand. A regulator cannot boost inadequate supply pressure.
Choose a compatible Rain Bird nozzle and filter screen, flush before nozzling and align the pattern using the stem ratchet. Follow the selected nozzle’s own radius and arc instructions.
The SAM check valve limits drainage after shutdown; it does not close a leaking upstream control valve.
Select this non-potable model by SKU and purple identification. Family photos and videos may also show standard white covers or other RD1800 options; the included features are listed above.
RD1800 Family Videos
Part 2: Not Afraid to Get Its Wiper Seal Dirty
Part 3: World's Toughest Spray
Part 4: Pressure Variations? No Sweat.
Part 5: Because Stuff Happens
Frequently Asked Questions
Does it include a nozzle?
No. Choose a compatible nozzle and the required screen separately for the desired arc, reach and flow.
Does this model include Flow-Shield?
No. RD04SP45NP includes SAM and 45 psi regulation without Flow-Shield. Choose the matching Flow-Shield model when that service-indication feature is needed.
Can I use a side inlet?
No. This SAM model requires its 1/2-inch female NPT bottom inlet.
Will its regulator increase low supply pressure?
No. The regulator reduces available pressure. The technical specification gives a 50–100 psi inlet range for the 45 psi regulation target; check pressure while the zone operates.
Why Buy from Big Frog Supply?
Choose RD04SP45NP when the required combination is purple non-potable identification, a 45 psi rotary-nozzle pressure target and SAM protection against low-head drainage. Its 4-inch stroke and 6-inch body are useful fit checks for a like-for-like replacement. It omits Flow-Shield; select RD04SP45FN when missing-nozzle service indication is part of the design.
Merchant SKU: RD04SP45NP; manufacturer designation: RD04-S-P45-NP.
Pop-up body: RD1800 4-inch model; nozzle not included.
Inlet: 1/2-inch female NPT; SAM model uses bottom inlet only.
Current model-specific technical operating range: 25–100 psi.
Regulator target: 45 psi; technical regulation range: 50–100 psi inlet. Adequate operating pressure and flow are required.
SAM check-valve capability: up to 14 feet of elevation head.
Flow-Shield option: not included.
Water-use identification: non-potable, purple-marked.
Watering arc, radius and flow are determined by the selected nozzle and operating conditions.
