Description
Premium Single Stage Oxygen Regulator
Model 425-50-540 is a premium industrial single stage Oxygen regulator that is an ideal choice for most industrial applications. This Regulator incorporates a number of Harris features designed to make it a rugged, long-lasting performer, including an exclusive tamper-proof, self-reseating internal HP safety valve and a neoprene diaphragm. The 425 is also available in a multitude of pressure ranges and for all standard industry gases.
Features
- Single Stage industrial Regulator with premium features
- Designed for rugged, long-lasting performance
- Easy-to-operate brass “T” screw adjusting handle
- Brass body and bonnet for longer service life
- Neoprene diaphragm for improved pressure control
- 2.5″ Brass dual scale easy-to-read gauges
- One-piece encapsulated seat design with internal filter to protect the PTFE Teflon seat from particulate contamination
- UL listed
- Equipped with a tamper-proof, self-reseating internal safety relief valve
Specifications
Equipment
| Adjusting Screw | Brass “T” screw |
| Body | Brass |
| Bonnet | Brass |
| Certification | CGA E-4 UL® listed |
| Cv | 0.17 |
| Delivery Pressure Gauge (PSIG) | 60 |
| Delivery Pressure Range (PSIG) | 0 – 50 |
| Diaphragm | Neoprene |
| Duty | Heavy |
| Equipped With | Tamper proof, self-reseating, internal high-pressure safety valve |
| Gas / Gas Service | Oxygen |
| Gauges | 2.5″ Brass dual scale (psi/kPa) |
| Inlet Connection | CGA 540 |
| Maximum Inlet Pressure (PSIG) | 3000 |
| Outlet Connection | 9/16″ – 18 RH |
| Pressure Regulation PSIG/100 PSIG | 0.20 |
| Recommended Items/Accessories | Steel Gauge Guard – Red (Fuel) – PN 4300238 Steel Gauge Guard – Green (Oxygen) – PN 4300239 Adapter – 9/16” – 18 (F) x 5/8″ – 18 (F) PN 90000002 |
| Seat | PTFE Teflon® |
| Supply Pressure Gauge (PSIG) | 4000 |
Warranty
| Warranty | 7 Years |





