G1-1/2'' L-Bore 3-Way PVC Electric Ball Valve 12 V AC/DC PTFE/EPDM

This robust and energy efficient 3-way (L-bore) electrical PVC ball valve from Tameson can be used for flow control with contaminated water or corrosive media, such as chloride solutions (seawater or swimming pools). The valve has G 1-1/2 inch female threaded ports. This is BSPP (British Standard Pipe Parallel). The valve body and the ball are made of PVC-U. The sealings are made of PTFE/EPDM. The valve has a 38 mm bore, with Kv value of 42 m³/h (Cv = 48.55 gpm). Kv expresses the flow rate of water in m³/h at a pressure drop of one bar. The valve can handle pressure of up to 10 bar at 20°C (145 psi at 68°F). It is suitable for temperatures from 0 to 60°C (32 to 140°F).

The actuator is suitable for both 12 volt DC (direct current) and 12 volt AC 50/60Hz (alternating current). With switches on the circuit board, the actuator can be set for AC or DC. The factory default setting is direct current (DC). The actuator has a robust aluminium housing (IP67, provided that an appropriate cable is connected) and delivers maximally 40 Nm torque. The valve rotates from 0 to 90 degrees in 8 seconds. The actuator is equipped with two additional limit switches for position-feedback. The limit switches are positioned at 0 and 90 degrees. If required, the angular position of the switches can be adjusted by the user. A mechanical position indicator on the top of the actuator shows the valve position. The actuator is equipped with a manual override. Comes unassembled, including ball valve (V3KKP), actuator (AG-040-C), and mounting accessories.

Pros:

• Switching time only 8 seconds
• Strong IP67 actuator housing
• Both 12V AC and DC possible (set by switch)
• Two extra limit switches for position feedback
• Manual override control
• Clear visual position indicator

Bore and circuit function

The ball has a L-port. Rotating the ball 90 degrees allows you to switch between two circuits.

Schematic drawing of the circuit function of L-bore valves

Electrical Wiring Diagram

The actuator works with 12 volt DC and 12 volt AC (50/60Hz). On the PCB are two small switches to set the actuator to AC or DC. The default setting is DC. The actuator draws 0.2A nominal, and 2.2A at maximal torque. The actuator has 3-point control. Terminals 1 and 2 are permanently connected to the power supply. Terminals 3 and 4 are for the control signals. Connecting one of these control wires, closes or opens the valve. Never connect terminals 3 and 4 at the same time to prevent short circuit and damage. The actuator has two internal limit switches that cut motor power at the end positions (0° and 90°, so no energy is consumed when the valve is fully open or fully closed. These switches are factory-set and not user-adjustable. In addition, there are two auxiliary switches for external position feedback (e.g. to a PLC or indicator light). The angular position of the auxiliary switches can be adjusted by the user; the motor-cutoff switches cannot. Always connect the earth and do not use the pipes as ground.

Electrical wiring diagram of the AG-040-C actuator. Before using alternating current, first the switches on the PCB need te be set.

Assembly

Make sure that the position of the ball and the actuator are properly set before assembly. The actuator is provided with two adapters to connect the actuator to the valve shaft. Mount the actuator to the valve with the provided bolts. There should be no play between both flanges. Use our range of fittings to connect the valve to your existing pipework.

Note: This product is delivered in separate parts, but with the required mounting accessories.