ParkerFlared Swivel Connection Sight Glasses

Parker Sight Glass: Flared Swivel, Copper/Steel

The PARKER Sight Glass (MPN PSG-3MF) is a flared swivel connection sight glass made of copper and steel, measuring 3 inches in length. This Parker component provides visual flow indication in industrial piping systems.

SKU 3G-OTH-71618

Brand

Parker

Item

Sight Glass: Flared Swivel, Copper/Steel

Technical Specifications

Parker

Manufacturer Part Number

PSG-3MF 

Material

Copper 

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

Parker Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a Parker PSG-3MF sight glass used for?

The Parker PSG-3MF flared swivel sight glass provides visual flow indication in industrial piping systems. It is commonly used in lubrication, hydraulic, and cooling circuits to confirm fluid movement and detect air or contamination. The copper/steel construction suits oil and compatible fluid applications.

What are the specifications of the Parker PSG-3MF sight glass?

The Parker PSG-3MF is a flared swivel connection sight glass made of copper and steel. It measures 3 inches in length. The manufacturer part number is PSG-3MF. This component is designed for visual flow monitoring in industrial piping systems handling compatible fluids.

Where to buy a Parker PSG-3MF sight glass worldwide?

3G Electric supplies the Parker PSG-3MF flared swivel sight glass to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this Parker component.

How to install a Parker flared swivel sight glass?

Install the Parker PSG-3MF by connecting the flared swivel ends to matching flare fittings in your piping system. Tighten the nut by hand, then use a wrench for final torque—avoid overtightening to prevent damage. Ensure the sight glass is oriented for clear fluid visibility and check for leaks before operation.

Used in

Common applications for Parker

Injection molding machine proportional directional control — Parker solenoid coils and proportional valve cartridges for mold-closing and hydraulic actuation circuits

Construction equipment hydraulic steering and boom control — Parker directional control valves with solenoid actuation for excavator and loader hydraulic systems

Industrial press forming systems — Parker pressure-relief and proportional directional valves for tonnage control and cycle sequencing

Material-handling conveyor systems — Parker proportional control valves with solenoid pilot stages for smooth load acceleration and deceleration

Tire-building machinery — Parker solenoid-actuated directional cartridges for synchronized multi-axis hydraulic positioning

Forestry and mobile equipment — Parker valve spools and solenoid assemblies rated for harsh-environment hydraulic circuits and mobile-duty pressure cycling

Parker Products

3G Electric supplies Parker flared swivel connection sight glasses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all Parker products →Contact our engineers →