Rain Bird 552 Block

Full / Part Circle Golf Rotors

Specifications

Radius: 33' to 55' (10.1 m to 16.8 m)
Flow Rate: 6.80 to 14.00 gpm (0.43 to 0.88 l/s); (1.54 to 3.18 m³/h)
Arc: Full-circle 360°, Adjustable 30° to 345°
Model: B: Block with Seal-A-Matic™ device
Maximum Inlet Pressure: 100 psi (6.9 bars)
Dimensions:
- Body Height: 9.6" (24.5 cm)
- Pop-Up Height to Mid-Nozzle: 2.6" (6.6 cm)
- Top Diameter: 4.25" (10.8 cm)
Nozzle Trajectory: 51 Nozzle: 12°; 52, 53, 54 Nozzles: 25°
Inlet Threads: 1" (25mm) ACME female thread
Holdback: 17' (5.2m) elevation
Rotation Time: 180° in ≤ 90 seconds; 80 seconds nominally
Maximum Stream Height: 51 Nozzle: 5' (1.5 m); 52, 53, 54 Nozzles: 13' (4.0 m)
Special Features:
- Self-Adjusting Stator
- Low Flow-by Bearing Guide

Rapid-Adjust Technology

Make easy arc adjustments with the turn of a screw. MemoryArc® feature retains two part-circle arc settings, so you can shift between full- and part-circle operation in seconds.

How it works:

Step 1: Set primary rotor arc. [Visual: Diagram shows setting the primary arc, labeled 'Arc A' and 'Full-Circle']
Step 2: Turn the Full/Part Adjustment Screw for full-circle operation. [Visual: Diagram shows a screw being turned.]
Step 3: Turn the rotor to either Arc A or Arc B setting, then set to part-circle. No need to reset the arc when changing between full- and part-circle settings. [Visual: Diagram shows rotor settings for 'Arc A' and 'Arc B'.]

How To Specify

The model number is constructed by combining specific components. For example, a customer ordering the #51 nozzle version would specify A552B51.

Part	Example	Description
Model Prefix	A
Model	552
Body/Valve	B	Block with Seal-A-Matic™ device
Nozzle	51	51, 52, 53, 54
Thread Type	ACME	1" (25mm) ACME female thread

Performance Data

U.S. Performance Data - Cascade Nozzles

Base Pressure (psi)	Nozzle	Radius (ft) / Flow (gpm) @ 50 psi	Radius (ft) / Flow (gpm) @ 60 psi	Radius (ft) / Flow (gpm) @ 70 psi	Radius (ft) / Flow (gpm) @ 80 psi	Radius (ft) / Flow (gpm) @ 90 psi	Radius (ft) / Flow (gpm) @ 100 psi
33	#51 - Blue	33 / 6.8	34 / 7.4	35 / 8.0	36 / 8.5	37 / 8.8	37 / 9.3
37	#52 - Beige	37 / 6.7	39 / 7.2	37 / 8.1	37 / 8.2	39 / 8.7	39 / 9.3
51	#53 - Gray	51 / 9.3	51 / 10.1	51 / 11.0	51 / 11.7	51 / 12.5	51 / 13.2
--	#54 - Red	-- / --	-- / --	53 / 12.0	54 / 12.4	55 / 13.3	55 / 14.0

Metric Performance Data - Cascade Nozzles

Base Pressure (bar)	Nozzle	Radius (m) / Flow (m³/h) / Flow (l/s) @ 3.4 bar	Radius (m) / Flow (m³/h) / Flow (l/s) @ 4.1 bar	Radius (m) / Flow (m³/h) / Flow (l/s) @ 4.8 bar	Radius (m) / Flow (m³/h) / Flow (l/s) @ 5.5 bar	Radius (m) / Flow (m³/h) / Flow (l/s) @ 6.2 bar	Radius (m) / Flow (m³/h) / Flow (l/s) @ 6.9 bar
10.1	#51 - Blue	10.1 / 1.54 / 0.43	10.4 / 1.68 / 0.47	10.7 / 1.82 / 0.50	11.0 / 1.93 / 0.54	11.3 / 2.00 / 0.56	11.3 / 2.11 / 0.59
11.3	#52 - Beige	11.3 / 1.52 / 0.42	11.9 / 1.64 / 0.46	11.3 / 1.83 / 0.51	11.3 / 1.87 / 0.52	11.9 / 1.99 / 0.55	11.9 / 2.11 / 0.59
15.5	#53 - Gray	15.5 / 2.12 / 0.59	15.5 / 2.29 / 0.64	15.5 / 2.49 / 0.69	15.5 / 2.65 / 0.73	15.5 / 2.83 / 0.79	15.5 / 2.99 / 0.83
--	#54 - Red	-- / -- / --	-- / -- / --	16.2 / 2.72 / 0.75	16.5 / 2.82 / 0.78	16.8 / 3.01 / 0.84	16.8 / 3.18 / 0.88

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