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PARKER Metal Pipe Straight: Union, Steel, 18 mm x 18 mm - Hydraulic Threaded Extreme-Pressure Pipe Fittings
PARKERHydraulic Threaded Extreme-Pressure Pipe Fittings

PARKER Metal Pipe Straight: Union, Steel, 18 mm x 18 mm

The PARKER Metal Pipe Straight: Union is a hydraulic threaded extreme-pressure pipe fitting, type Steel, 18 mm x 18 mm, with Female Threaded x Female Metric Threaded connections. It is rated for a maximum operating…

SKU 3G-OTH-467459

Brand
PARKER
Item
Metal Pipe Straight: Union, Steel, 18 mm x 18 mm
Category
Hydraulic Threaded Extreme-Pressure Pipe Fittings
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Technical Specifications

PARKER
Manufacturer Part Number
M18G8HG8S
Type
Steel, 18 mm x 18 mm, Female Threaded x Female Metric Threaded
Connector Type
Adapter
Fitting Pipe Size
18 mm x 18 mm
Maximum Operating Pressure
6,000 psi
(DO NOT SEND) Manufacturer Location
Made in USA
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PARKER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PARKER Metal Pipe Straight: Union is a hydraulic threaded extreme-pressure pipe fitting, type Steel, 18 mm x 18 mm, with Female Threaded x Female Metric Threaded connections. It is rated for a maximum operating pressure of 6,000 psi and is identified by manufacturer part number M18G8HG8S.

Frequently Asked Questions

What is the PARKER Metal Pipe Straight Union used for?

This PARKER hydraulic threaded extreme-pressure pipe fitting connects two 18 mm female threaded ports in high-pressure hydraulic systems up to 6,000 psi. It is commonly used in industrial fluid power applications where a reliable, leak-resistant steel union is required.

What are the specifications of the PARKER M18G8HG8S union?

The PARKER M18G8HG8S is a steel straight union with 18 mm x 18 mm female threaded x female metric threaded connections. It has a maximum operating pressure of 6,000 psi and is classified as an adapter-type connector for extreme-pressure hydraulic systems.

Where to buy PARKER hydraulic fittings in worldwide?

3G Electric supplies and delivers PARKER hydraulic fittings like the M18G8HG8S union to worldwide locations. As a global industrial solutions provider, we handle full logistics and customs clearance so you receive genuine components for your extreme-pressure fluid power systems.

How to select the correct PARKER pipe union for high-pressure systems?

Match the fitting pipe size (18 mm x 18 mm) and thread type (female metric) to your system's ports. Verify the maximum operating pressure rating of 6,000 psi meets your application requirements. Always confirm material compatibility—steel is suitable for hydraulic oil and many industrial fluids.

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 hydraulic threaded extreme-pressure pipe fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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PARKER Metal Pipe Straight: Straight, Steel, 1/2 in x 3/4 in, 4,000 psi (MPN 3/4 X 1/2 FG-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 4,000 psi; Connector Type: Adapter; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 1/2 in x 3/4 in.
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PARKER Metal Pipe Straight: Straight, Steel, 1/2 in x 3/4 in, 4,000 psi (MPN 3/4 X 1/2 FG-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 4,000 psi; Connector Type: Adapter; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 1/2 in x 3/4 in.
PARKER Metal Pipe Elbow: 90° Elbow, Steel, 3/8 in x 1/4 in, Male NPT Threaded x Female NPT Threaded (MPN 3/8 X 1/4 CD-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 5,000 psi; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 3/8 in x 1/4 in.
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PARKER Metal Pipe Elbow: 90° Elbow, Steel, 3/8 in x 1/4 in, Male NPT Threaded x Female NPT Threaded (MPN 3/8 X 1/4 CD-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 5,000 psi; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 3/8 in x 1/4 in.
PARKER Metal Pipe Straight: Straight, Steel, 22 mm x 1/2 in, Male Threaded x Female NPT Threaded (MPN M22-1/2F8OHGS). Key specifications — Brand: PARKER; Maximum Operating Pressure: 3,500 psi; Connector Type: Adapter; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 22 mm x 1/2 in.
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PARKER Metal Pipe Straight: Straight, Steel, 22 mm x 1/2 in, Male Threaded x Female NPT Threaded (MPN M22-1/2F8OHGS). Key specifications — Brand: PARKER; Maximum Operating Pressure: 3,500 psi; Connector Type: Adapter; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 22 mm x 1/2 in.
PARKER Metal Pipe Elbow: 45° Elbow, Steel, 3/8 in x 3/8 in, 4,500 psi (MPN 3/8 DD45-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 4,500 psi; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 3/8 in x 3/8 in.
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PARKER Metal Pipe Elbow: 45° Elbow, Steel, 3/8 in x 3/8 in, 4,500 psi (MPN 3/8 DD45-S). Key specifications — Brand: PARKER; Maximum Operating Pressure: 4,500 psi; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 3/8 in x 3/8 in.
PARKER Plug: Plug, Carbon Steel, 20 mm, Metric Threaded, 630 bar (MPN VSTI20X1.5EDCF). Key specifications — Pipe Fitting Material: Carbon Steel; Brand: PARKER; Maximum Operating Pressure: 630 bar; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 20 mm.
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PARKER Plug: Plug, Carbon Steel, 20 mm, Metric Threaded, 630 bar (MPN VSTI20X1.5EDCF). Key specifications — Pipe Fitting Material: Carbon Steel; Brand: PARKER; Maximum Operating Pressure: 630 bar; (DO NOT SEND) Manufacturer Location: Globally Sourced; Fitting Pipe Size: 20 mm.
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