2H / 3H Series Heavy Duty Cylinders

Premium High-Pressure Solutions | NFPA Standard | Factory Direct

TECHNICAL SPECIFICATIONS

StandardANSI (NFPA) T3.6.7R3-2009
Rated Pressure3000 PSI (210 Bar)
Bore Diameter1.5" to 20" (38mm - 508mm)
Rod Diameter0.625" to 5.5" (16mm - 140mm)
Quality Status100% Static & Dynamic Tested
Mounting Styles19 Standard NFPA Options
Temperature-23°C to +121°C
Fluid TypeHydraulic Oil / Phosphate Esters
Warranty12-Month Global Warranty
Interchangeable1:1 with Parker & Eaton
Standardized Manufacturing & QC Workflow QC Workflow

Proven Industrial Applications

Corporate Integrity & Manufacturing Power

About Guoyue Hydraulic

Guoyue Hydraulic is a technology leader integrating design and manufacturing. With a 50 million yuan registered capital, we serve 30+ global enterprises with German-inspired precision and 100% QC commitment.

50MCapital
100%Tested
20Y+Exp.

Manufacturing Integrity & Customer Trust

Our Global Reach & Presence

Authoritative Certifications & Patents

CE: Pneumatic
CE: Hydraulic
CE: Systems

Export Standard Packaging & Shipping

Frequently Asked Questions

What is the difference between the 2H and 3H series?
2H is the standard heavy-duty tie-rod series. 3H typically refers to the larger bore sizes or high-pressure variants that maintain the same NFPA mounting footprints.
Are your 2H/3H cylinders interchangeable with Parker or Miller?
Yes. Our series is manufactured strictly according to NFPA/ANSI standards, ensuring 1:1 mounting interchangeability with Parker, Eaton, and other major NFPA brands.
What type of seal kits do you use for 3000 PSI high-temperature operation?
For standard mineral oil, we use premium seals. For temperatures up to 121°C (250°F), we provide optional Viton/Fluorocarbon seal kits to ensure zero leakage.
Can you manufacture based on my custom CAD drawings?
Absolutely. Our engineering team can manufacture exactly based on your 2D/3D CAD files or help you design a solution from scratch using our technical evaluation system.

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