Solinst 464 Operating instructions

Brand: Solinst

Model: 464

Type: Operating instructions

Solinst 464 is a pressure regulator designed to control and maintain a constant pressure in various applications. It is commonly used in water monitoring systems, allowing users to precisely regulate the pressure of water or gas flowing through the system. With its 125 psi pressure rating, the Solinst 464 ensures accurate and reliable pressure control, making it suitable for a wide range of monitoring and testing purposes. Its compact design and easy-to-use interface make it a practical tool for professionals and hobbyists alike.

Pressure Regulator Replacement

Model 464 Mk3 125 psi

High Quality Groundwater and Surface Water Monitoring Instrumentation

(Page 1 of 2)

Tools and Materials Needed

1. 125 psi Pressure Regulator (Spare) (#112536)

2. 3/32” Allen key

3. Pliers

4. Small vice (recommended)

5. 1/2” wrench

6. 9/16” wrench

7. PTFE tape, or equivalent

8. Pressure source (compressed gas cylinder)

Instructions

1. Turn the Pump Control Unit off. Disconnect the pressure supply

line.

3. Use the 3/32” Allen key to undo the four hex screws on the sides

of the Control Unit.

®Solinst is a registered trademark of Solinst Canada Ltd.

125 psi Pressure Regulator (Spare)

#112536

Hex

Screws

Hex

Screws

Panel

Pressure

Regulator

Knob

Battery

Housing

2. Remove the batteries.

4. Remove the panel from the Control Unit and ﬂip it over to access

the Pressure Regulator.

5. Remove the clear tubing from the ﬁttings on the Pressure Regulator.

To remove the tubing, push down on the collar of the ﬁtting and

pull the tubing out.

6. Flip the panel back over. Use pliers to loosen the panel mount

collar and remove it from the Pressure Regulator knob.

Panel Mount

Collar

Pressure

Regulator

T-Fitting

Brass Tee

Tubing Elbow

More Info | Instructions | Get Quote

Solinst Canada Ltd. 35 Todd Road, Georgetown, Ontario Canada L7G 4R8 www.solinst.com

E-mail: instruments@solinst.com Tel: +1 (905) 873-2255; (800) 661-2023 Fax: +1 (905) 873-1992

November 15, 2022

(#112537) (Page 2 of 2)

7. Pull the Pressure Regulator assembly out from the panel.

8. It is recommended to use a small vice to hold the brass tee of the

Pressure Regulator in place, while removing the other ﬁttings.

9. Using a wrench, remove the tubing elbow and the tubing T-ﬁtting

from the Pressure Regulator.

10. Unscrew the Pressure Regulator from the brass tee.

11. Wrap PTFE tape around the threads on the brass tee, tubing

T-ﬁtting, and tubing elbow.

12. Thread the new Pressure Regulator onto the brass tee.

13. Thread the tubing T-ﬁtting into the opening on the new Pressure

Regulator labelled “IN”.

14. Thread the tubing elbow into the other opening in the Pressure

Regulator. Use the photo as reference for proper orientation.

Note: It any leaks are detected, ensure the ﬁttings are properly

connected and sealed with the PTFE tape. Or, you may need

to cut a small amount of the tubing ends off to ensure a proper

seal in the ﬁttings

18. Once successfully tested, place the panel in the Control Unit and

re-install the four hex screws. Re-install the batteries.

15. Place the new Pressure Regulator with connected ﬁttings through

the panel, and use the panel mount collar to secure it in place.

Ensure proper orientation.

16. Push the tubing ﬁrmly back into the correct ﬁttings. Use the photo

as reference for proper connections.

17. Before installing the panel back into the Control Unit, test it to

ensure proper connections have been made and to check for any

leaks. Turn the Pressure Regulator all the way up while testing.

Solinst 464 Operating instructions

Solinst 464 Operating instructions

Solinst 464 Operating instructions

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