Fisher LR128 Regulator

The Fisher LR128 is a pilot-operated relief (backpressure) valve designed specifically for liquid applications. Its core strengths are durability, tight shutoff, and long service life - achievements rooted in thoughtful design rather than luck.

One standout feature is protection against debris. The internal flow path is specially shaped to guide the fluid and "throw off" particles, preventing direct erosion of the valve seat. In addition, the built-in inlet strainer keeps large debris from entering the main valve entirely.

Reliability is thoroughly validated. The Fisher LR128 Regulator has undergone complete laboratory testing to ensure it withstands various field conditions. Its metal valve plug replaces traditional flexible elements, eliminating common issues like diaphragm rupture or spring fatigue - a feature users quickly appreciate for its peace of mind.

Maintenance is also carefully considered. The pilot valve is neatly designed for easy disassembly, and the valve body includes an in-line travel indicator, letting you see at a glance whether the valve is open and by how much, without any guesswork.

In short, the Fisher LR128 Regulator is the kind of valve you install and then can confidently leave to operate. Smooth, tight, and long-lasting - it's all taken care of.

Pilot-Operated Control for highly accurate back-pressure or relief regulation

Metal Valve Plug & Rugged Internals for extended service life

Integrated Inlet Strainer to block debris and prevent seat erosion

Wide Application Flexibility with multiple connection and material options

High Pressure Capability supporting inlet pressures up to 450 psig (31 bar)

Easy Maintenance with inline pilot and trim access

Maintaining stable back-pressure in liquid systems
Overpressure protection for pumps, separators, and vessels
Fuel, water, and industrial liquid flow control
Systems with contaminated or particle-rich liquids
High-reliability liquid transfer systems
The Fisher LR128 Regulator is particularly valued in facilities that require precise liquid pressure stability combined with low maintenance demands.

LR128 Standard Configuration

Optional pilots, spring ranges, corrosion-resistant trims, and multiple end connections

Compatible accessories including pilot mounting kits and strainers

Competitive pricing backed by multi-source supply channels

Short lead times with guaranteed on-time delivery

One-year warranty on all products

Professional engineering support for selection and troubleshooting

Multiple logistics choices: express, air, sea, and consolidated shipping

Secure, reinforced packaging for safe transportation

Years of experience supplying domestic and international clients, including other distributors

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