Belgas P630R High Flow Gas Relief Valve
Rp123000.00
Belgas P630R High Flow Gas Relief Valve
Product Description
The BelGAS P630R is a heavy-duty, spring-loaded adjustable relief valve designed to provide reliable overpressure protection in gas systems. With adjustable relief settings ranging from 3 PSIG to 250 PSIG (0.21–17.3 BAR), the P630R is engineered for high-flow performance in demanding industrial applications, particularly within the oil and gas sector.
Standard stainless-steel internal components and a durable powder-coated exterior ensure long service life, even in corrosive or sour-gas environments. All steel units comply with NACE MR0175 requirements.
Applications
Compressor Stations
Oil & Gas Refineries
High-Pressure Processing Plants
Key Features
Stainless-steel internal components (standard)
Steel models meet NACE MR0175 for sour gas service
Corrosion-resistant powder-coated exterior
Wide adjustable relief pressure range: 3–250 PSIG
High flow capacities suitable for industrial gas systems
Technical Specifications
Pressure Ratings
Relief Pressure Range: 3–250 PSIG
Maximum Allowable Working Pressure: Set pressure + 250 PSIG
Temperature Range
–20°F to 180°F
–29°C to 82°C
Body Sizes
1" NPT
2" NPT
Available Outlet Pressure Ranges
Low Pressure Spring Ranges
3–8 PSIG
6–17 PSIG
15–22 PSIG
20–35 PSIG
35–50 PSIG
30–70 PSIG
High Pressure Spring Ranges
50–95 PSIG
75–175 PSIG
150–250 PSIG
Materials of Construction
Component | Material |
Body & Bonnet | Cast Iron or Steel (1030 / WCB) |
Diaphragm | Neoprene or Fluorocarbon |
Seat | Nitrile |
Orifice | 316 Stainless Steel |
Orifice Size
½ inch
Approximate Weight
Body Size | Weight |
1" | 20 lbs (9 kg) |
2" | 25 lbs (11.25 kg) |
Dimensions (High Pressure Models)
1" P630R
A: 7.61 in (193 mm)
B: 15.39 in (391 mm)
C: 7.79 in (198 mm)
D: 1.15 in (29 mm)
E: 1" NPT
F: 4.67 in (119 mm)
2" P630R
A: 8.31 in (211 mm)
B: 15.66 in (398 mm)
C: 8.45 in (215 mm)
D: 1.90 in (45 mm)
E: 2" NPT
F: 4.67 in (119 mm)
Relief Capacity (SCFH – Natural Gas, 0.6 SG)
High Pressure Ranges
Set Pressure | 10% Overpressure | 20% Overpressure |
50 PSIG | 2,900 | 7,100 |
75 PSIG | 2,700 | 7,480 |
100 PSIG | 3,260 | 9,670 |
125 PSIG | 5,500 | 14,200 |
175 PSIG | 5,480 | 19,000 |
250 PSIG | 13,500 | 48,000 |
Low Pressure Ranges
Set Pressure | 10% Overpressure | 20% Overpressure |
5 PSIG | 640 | 2,710 |
10 PSIG | 1,420 | 2,900 |
15 PSIG | 2,000 | 4,200 |
20 PSIG | 2,130 | 4,450 |
35 PSIG | 3,030 | 7,230 |
50 PSIG | 4,900 | 14,000 |
Connection Options
Standard: NPT
Optional (Steel Units Only):
150# RF
300# RF
600# RF
