The Fisher 627 series pressure regulator has been a trusted solution for medium and low-pressure gas systems worldwide. With the new part number 627-1217-29863 (replacing 627-499), this regulator continues to deliver reliable performance across natural gas, manufactured gas, LPG, and compressed air applications.
Fisher 627-1217-29863 Pressure Regulator (Actual Product Image)
Key Specifications
| Specification | Details |
|---|---|
| Brand | Fisher™ (USA) |
| Model | 627-499 / 627-1217-29863 |
| Connection | 180° Internal Thread |
| Nominal Size | DN25 (1 inch) |
| Orifice Size | 1/2″ |
| Max Inlet Pressure | 750 PSI (51.7 bar) |
| Outlet Pressure Range | 70-150 PSI |
| Body Material | Cast Iron |
| Trim Material | Aluminum / Nitrile (AL/NIT) |
| Unit Weight | 2.96 kg |
Compatible Media
- ✅ Natural Gas
- ✅ Manufactured Gas
- ✅ Liquefied Petroleum Gas (LPG)
- ✅ Compressed Air
- ✅ Other clean, dry gases
Why Choose the Fisher 627-1217-29863?
1. Sensitive Shutoff Characteristic
When downstream demand suddenly stops, the valve plug responds immediately to prevent gas leakage and ensure operational safety.
2. Optional Internal Relief Valve
An integrated relief valve can be added as a safety backup, automatically venting excess pressure if outlet pressure exceeds safe limits.
3. High Accuracy Pressure Control
The 70-150 PSI adjustment range, combined with precision machining, delivers stable outlet pressure with minimal fluctuation.
4. Flexible Installation
Install horizontally, vertically, or at any angle—this regulator adapts to tight spaces and challenging field conditions.
5. Pilot-Operated Applications
Use as a load regulator in larger pressure reducing systems. Working alongside a main regulator, it handles downstream pressure changes while extending the main regulator’s service life.
Nameplate Data
FISHER® LOC477
TYPE: 627-1217-29863
DATE: 26DEC19
SERIAL NO: RO58722299
RANGE: 70-150 PSI
ORIFICE TRIM: 1/2" AL/NIT
Common Applications
- City gas gate stations and pressure regulating boxes
- Commercial/industrial gas boiler pressure regulation
- LPG vaporization station pressure reduction
- Compressed air system pressure control
- Gas generator fuel supply systems
Technical Advantages for Industrial Users
Durability in Harsh Conditions
Cast iron construction withstands temperature variations and environmental exposure common in outdoor installations across the Middle East and similar climates.
Proven Field Performance
The Fisher 627 series has decades of operational history in oil & gas, petrochemical, and power generation facilities globally.
Easy Maintenance
Standardized trim components and straightforward disassembly reduce downtime when service is required.
Conclusion
For facilities requiring reliable medium-pressure gas regulation, the Fisher 627-1217-29863 offers proven performance, flexible configuration options, and the backing of Emerson’s global support network.
