Figure 31: Solenoid Valve Location on Atmospheric Valve & Compressed Air Connections

Solenoid Valve

(1)Normally Closed Port = Connect to Air Supply

(2)Common = Connect to Valve

(3)Normally Open = Exhaust Port

Your 3/8” (9 mm) branch supply line should include:

1.A shutoff valve for ON/OFF control.

2.An air filter/pressure regulator with a gauge for pressure control.

3.Mini-lubricators located at each vacuum receiver.

Install a quick-disconnect fitting or a shutoff valve in the compressed air piping leading to the vacuum receiver atmospheric valve to speed receiver cover removal for cleanout or service.

Connecting Vacuum Receivers with Sequence-T Valve Compressed Air Lines

See Figure 32 on the following page for an illustration of a typical sequence-T valve. Critical dried resin systems sometimes require sequence-T valves to prevent drawing humid atmo- spheric air into the material supply. Sequence-T valves are usually installed in the vacuum header above the vacuum hoppers.

Note: The sequencing valve is located in the cover on SR Series vacuum receivers if you selected the internal sequencing valve option.

If mounted in the vacuum line, connect the sequence-T valve to a 60 psi to 80 psi (414 kPa to 552 kPa) source of clean, dry, lubricated compressed air.

Run a 3/8” (9 mm) branch line off the plant air main to the sequence T valves in your system. Install a 3/8” (9 mm) x 1/8” (3 mm) tee in the up position near each receiver.

Connect compressed air to the normally open port on top of the sequence-T valve solenoid valve with a 1/8” (approx. 3 mm) pipe nipple. Connect the common port to the sequence-T valve using 1/4” (6 mm) poly tube and connectors. See the following for more information.

Conveying System Mechanical Components Chapter 3: Installation

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Sterling 882.00379.00 manual Solenoid Valve