Rain Bird TSJ & TSJ-PRS Series Turf Swing Joints

Primary Application

Rain Bird's patented Turf Swing Joints (TSJ) connect rotors and quick coupler valves to lateral irrigation pipes. Made from rigid PVC, Type I, the 3/4" and 1" swing joints are designed to optimize rotor performance, reduce costs associated with irrigation system installation, and to be maintenance free. Available with and without pressure-regulation, they allow irrigation professionals to adjust rotor heads to grade and prevent heads or pipes from breaking when run over by equipment.

Optimize Rotor Performance

Rain Bird's Turf Swing Joints are over 50 percent more efficient than the competition. As water flows through poorly designed swing joints, it experiences turbulence and pressure loss due to sharp inner corners and internal obstructions. Rain Bird's smooth, swept elbow design reduces pressure loss, resulting in higher efficiency and better rotor performance.

Reduce Installation Costs

Rain Bird's preassembled swing joints come in a variety of sizes to address multiple irrigation installation requirements. Oversized threaded inlets and grips simplify hand tightening. Each is ready-to-install, saving contractors time when connecting lateral lines to the rotor heads. Contractors, distributors, and landscape architects install Rain Bird swing joints knowing that they have been tested to the industry's highest standards.

Maintenance Free

Rain Bird's swing joints are designed with double O-rings that provide extra protection against leaks and keep threads clean of debris. Visible thread stops prevent over-tightening. Once installed, the contractor will not need to worry about this aspect of the installation ever again.

Pressure Regulation (TSJ-PRS)

Rain Bird's Turf Swing Joint with Pressure Regulating System (TSJ-PRS) models control and maintain preset inlet pressures for rotors with 1" inlets. Pressure regulation at the rotor gives designers more control over the irrigation system performance. In high pressure or fluctuating pressure situations, the TSJ-PRS ensures optimal droplet size and eliminates misting, resulting in improved uniformity and reduced water consumption. The TSJ-PRS can be used to provide the same pressure to each rotor on a zone in applications where high flow rates result in significant friction losses or where there are elevation changes.

How to Specify

Model Number structure: TSJ-XXXXxx - PRS

• Size:
  • 12075: 12" long, 3/4" M x M NPT
  • 12: 12" long, 1" M x M NPT
  • 100: 1" M x M NPT
• Optional Feature: PRS: Pressure Regulating System
• Model: TSJ: Turf Swing Joint

TSJ & TSJ-PRS General Features

• Patented swept elbow design minimizes turbulence and pressure loss while maximizing rotor performance.
• No sharp inner corners (as some competitors have).
• No internal obstructions (as some competitors have).
• Preassembled units save the contractor time and reduce installation costs.
• The structural integrity from the swept elbow design reduces costs associated with fatigue-related failures.
• Oversized threaded inlets, extra large grips, and large visible stops make hand tightening trouble-free.
• Patented double O-rings provide extra protection against leaks and keep threads clean of debris during installation.
• Patented low pressure relief vent prevents pressure from building up between the primary and secondary O-rings when the swing joint is assembled in water, eliminating blown O-rings.
• Built to last from rigid PVC Type I, cell classification 12454-B, conforming to ASTM D1784. All NPT threads, sockets, and spigots are PVC Schedule 80 per ASTM D2464 and D2467.

TSJ-PRS Only Features

• Maintains a constant, uniform pressure into the rotor regardless of nozzle used:
  ▶️ 70 psi (4.8 bar) for 1" swing joints
• Allows each rotor on a zone to operate at the same pressure, improving consistency and overall system performance.
• Reduces misting, fogging, and other performance problems caused by high pressure.
• Regulator housing is made of PVC that matches the high pressure rating of the Rain Bird turf swing joint and exceeds the pressure rating of rotors.
• Diaphragm is made of a durable fabric reinforced elastomer for long life.
• Porous filter provides atmospheric reference without allowing contamination to enter, enabling the system to be buried in any kind of soil.

Specifications

• Pressure Rating: 315 psi at 73° F (21.7 bar at 22.8° C) (per ASTM D3139)
• Tested without leakage for 60 minutes at 790 psi (54.5 bar)
• Tested without leakage for short term exposure at 1000 psi (68.9 bar)
• 3/4" Joint Pressure Loss: 0.3 psi at 6 gpm (0.02 bar at 0.4 l/s).
• 1" Joint Pressure Loss: 1.5 psi at 18 gpm; 2.5 psi at 23 gpm (0.1 bar at 1.1 l/s; 0.2 bar at 1.5 l/s).
• TSJ-PRS Maximum Flow: 22 gpm (1.41 l/s).
• See charts for pressure loss comparison and pressure regulation.

Important Note: The TSJ-PRS is not recommended for use in systems where the pressure in the lateral lines is equal to or less than the nominal regulation pressure, as the increased pressure drop may adversely affect the performance of such systems.

To reduce the effects of water hammer, Rain Bird recommends flow rates in the supply line not exceed 5 ft/sec (1.5 m/s). The TSJ-PRS is not intended to function as a water hammer prevention device.

There are no user-serviceable parts inside. The internal spring is under compression. Do not open the PRS unit under any circumstances.

Swing Joint Specifications

Additional TSJ-PRS Specifications

• The pressure regulating system (PRS) shall consist of the outlet elbow of a Rain Bird Turf Swing Joint (TSJ).
• The TSJ-PRS shall allow pressure to increase uniformly within the rotor up to the preset regulation pressure before regulation occurs.
• Pressure regulation shall be provided to rotors with 3/4" (1.9 cm) and 1" (2.5 cm) inlets by means of a spring-loaded diaphragm attached to a flow tube.
• Regulation shall occur at the nominal preset pressure of 70 psi (4.8 bar) for the 1" TSJ-100-PRS.
• Atmospheric reference for regulation shall be provided through a porous filter that prevents contaminants from entering the system when the regulator is buried.
• The regulator housing shall be constructed of high strength PVC.
• All metal components shall be made of stainless steel.
• The diaphragm shall be a fabric reinforced elastomer.

Visual Guides and Performance Data

TSJ-PRS Pressure Regulation Graph

This graph illustrates the pressure regulation capability of the TSJ-100-PRS. The Y-axis represents the Swing Joint Outlet (Rotor Inlet) Pressure in psi, and the X-axis represents the Swing Joint Inlet Pressure in psi. The line for TSJ-100-PRS shows that the outlet pressure is maintained at approximately 70 psi once the inlet pressure exceeds this value, demonstrating its regulation function.

1" Swing Joint Pressure Loss Comparison Graph

This graph compares the pressure loss (in psi) versus flow rate (in gpm) for different 1" swing joints. It shows that the Rain Bird Swing Joint consistently exhibits lower pressure loss compared to a Competitor's Swing Joint and a Nipple & Elbow Swing Joint across various flow rates, indicating higher efficiency.

Smooth Water Flow Diagram

This diagram visually explains how the Rain Bird TSJ Series Swing Joint's swept elbow design reduces pressure loss by more than 50% over competitors. It highlights:

• Smooth Water Flow Reduces Pressure Loss!
• Increased cross-sectional area
• Smooth flow path
• Smooth inner corners

Key Features Illustrations

Several features are illustrated with callouts on images of the swing joint:

• Oversized Threaded Inlets and Grips: Described as making hand tightening and blind underwater installations faster and easier.
• Double O-ring Design: Provides double protection against leaks, and the outer seal keeps threads free of debris.
• Visible Thread Stops: Prevents over-tightening of the acme threads.
• Patented Low Pressure Relief Vent: Eliminates blown O-rings by preventing pressure buildup between the double O-rings.
• Patented Swept Elbow Design: Reduces pressure loss by more than 50% and features a 315 psi (21.6 bar) pressure rating.

Installation Diagrams

• Swing Joint Installation with Quick-coupler Valve: An illustration showing how a swing joint connects to a quick-coupler valve.
• 8005 Rotor with TSJ-100-PRS: An illustration depicting a Rain Bird 8005 Rotor connected to a TSJ-100-PRS swing joint.

Contact Information

Rain Bird Corporation
970 West Sierra Madre Ave
Azusa, CA 91702
Phone: (626) 812-3400
Fax: (626) 812-3411

Specification Hotline
(800) 458-3005 (U.S. and Canada only)

Rain Bird Corporation
6991 East Southpoint Road
Tucson, AZ 85756
Phone: (520) 741-6100
Fax: (520) 741-6522

Rain Bird International, Inc.
1000 West Sierra Madre Ave
Azusa, CA 91702
Phone: (626) 963-9311
Fax: (626) 852-7343

Website: www.rainbird.com

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