FISHER TYPE 98H PRESSURE REGULATOR
Rp123000.00
The Fisher Type 98H is a direct-operated pressure reducing regulator designed for industrial and commercial gas service applications requiring accurate downstream pressure control and reliable performance. Engineered with a spring-loaded diaphragm mechanism, the Type 98H regulator provides stable outlet pressure regulation, fast response, and durable operation in demanding environments.
The Fisher 98H regulator is widely used in fuel gas systems, industrial burner applications, utility gas distribution, and process gas systems where dependable medium- to high-pressure regulation is required.
General Specifications
Description | Specification |
|---|---|
Product Type | Direct-Operated Pressure Reducing Regulator |
Model | Fisher Type 98H |
Manufacturer | |
Regulator Type | Spring-Loaded / Self-Operated |
Body Sizes | 1/4 in. to 2 in. |
End Connections | NPT Threaded / Flanged / Socket Weld |
Body Materials | Cast Iron, Carbon Steel, Stainless Steel |
Maximum Inlet Pressure | Up to 600 psig (41.4 bar) |
Outlet Pressure Range | 5 to 150 psig |
Temperature Capability | Up to 650°F (343°C) depending on trim materials |
Flow Media | Steam, Air, Gas, Water, Oil, Process Chemicals |
Pressure Registration | Internal |
Shutoff Capability | Tight Shutoff with Elastomer Seat Options |
Mounting Position | Horizontal or Vertical |
The 95/98 Series regulators are compact, high-capacity direct-operated regulators designed for severe industrial pressure control applications.
Key Features
Compact and rugged industrial construction
Stable and accurate outlet pressure control
Fast response to changing process demand
Suitable for steam, gas, liquid, and air service
High-pressure and high-temperature capability
Available with corrosion-resistant trim materials
Tight shutoff performance
Easy maintenance and field servicing
Long operational service life
Suitable for severe industrial environments
The regulator series supports applications involving steam, nitrogen purging, cooling water, fuel lines, and process chemicals.
Typical Applications
Fuel gas conditioning systems
Steam distribution systems
Industrial burner systems
Nitrogen blanketing applications
Boiler feedwater systems
Petrochemical processing plants
Utility gas distribution systems
Industrial pneumatic supply systems
Process chemical systems
Operating Principle
The Fisher Type 98H regulator operates using a spring-loaded diaphragm assembly that automatically balances outlet pressure against the adjustable spring force. When downstream pressure decreases below the setpoint, the regulator valve opens to increase flow. As outlet pressure rises to the desired setting, the valve throttles toward the closed position, maintaining stable downstream pressure throughout the system.
Advantages
High-capacity flow performance
Excellent pressure stability and sensitivity
Reliable operation under varying loads
Minimal maintenance requirements
Durable industrial-grade construction
Flexible installation capability
Proven Fisher regulator reliability
Available Configurations
Model | Application |
|---|---|
Type 98L | Low-pressure regulation |
Type 98H | High-pressure regulation |
Type 98LD | Low differential pressure regulation |
Type 98HD | High differential pressure regulation |
Type 98HP | High-pressure outlet applications |
Type 98HT | High-temperature service |




