SPIRAX SARCO · SAFETY VALVES
Spirax Sarco SV60 Safety Valve – Full Lift Flanged Safety Valve for Steam, Gas & Water
Spirax Sarco SV60 full lift flanged safety valve for steam boilers, pressure vessels & pipelines. DN20-DN150, PN16-PN40. Get quote from PC Engineering
Overview
The Spirax Sarco SV60 is a full lift flanged safety valve designed for overpressure protection in steam, inert industrial gas, and water applications. This valve range is engineered to meet stringent safety requirements in process industries, providing reliable pressure relief to protect critical equipment from damage due to excess pressure.
Available in two body material variants—SV604 (carbon steel) and SV607 (SG iron)—the SV60 series covers inlet sizes from DN20 to DN150. The valve features multiple bonnet and cap configurations including sealed cap, open type easing lever, and packed easing lever (DN20 to DN100 only), allowing flexibility for different operational and testing requirements.
The SV60 is certified to European Pressure Equipment Directive 2014/68/EU (Category 4, Group 2 gases), with seat tightness conforming to ASME/API Standard 527-1992. It also holds Lloyd's Register type approval and TÜV certification for AD-Merkblatt and TRD standards, making it suitable for regulated industrial environments.
Key Features
- Full lift safety valve design for maximum discharge capacity
- Available in carbon steel (SV604) and SG iron (SV607) body materials
- Flanged connections per EN 1092 (PN) and EN 1759-1 (ASME 300)
- Multiple cap/bonnet configurations: sealed cap, open easing lever, packed easing lever
- CE marked per PED 2014/68/EU, Category 4 for Group 2 gases
- Seat tightness to ASME/API 527-1992
- Lloyd's Register and TÜV approved
- Standard chrome-vanadium or optional tungsten alloy springs for high-temperature service
- Blowdown limit: 10% for steam/gas, 20% for liquids
Specifications
| Parameter | SV604 (Carbon Steel) | SV607 (SG Iron) |
|---|---|---|
| Inlet Sizes | DN20 to DN150 | DN20 to DN100 |
| Inlet Flange Rating | PN40 | PN16, PN25 |
| Outlet Flange Rating | PN16 | PN16 |
| Max Set Pressure (Steam) | 29 bar g (DN20–DN65), reducing with size | 22.5 bar g (PN25), 14.6 bar g (PN16) |
| Temperature Range | -10°C to 400°C | -10°C to 350°C |
| Overpressure | 5% (steam), 10% (liquids/gas) | 5% (steam), 10% (liquids/gas) |
| Backpressure Limit | 10% of set pressure | 10% of set pressure |
| Cold Hydraulic Test Pressure | 60 bar g | PN25: 38 bar g, PN16: 24 bar g |
| Body Material | 1.0619 + N | GJS-400-18LT |
| Seat/Disc Material | Stainless steel (1.4057/1.4021) | Stainless steel (1.4057/1.4021) |
| Spring Material | Chrome-vanadium (std), Tungsten alloy (>230°C) | Chrome-vanadium (std), Tungsten alloy (>230°C) |
| Standards | EN ISO 4126, PED 2014/68/EU, ASME/API 527 | EN ISO 4126, PED 2014/68/EU, ASME/API 527 |
Applications
The Spirax Sarco SV60 safety valve is suitable for:
- Steam boiler protection - Pressure vessel and receiver safeguarding - Compressed air and inert gas systems - Pipeline overpressure protection - Process industry applications requiring certified pressure relief - Power plants, refineries, chemical plants, and manufacturing facilities
Frequently Asked Questions
Get a Quote
Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco SV60 Safety Valve. Call us or fill in our inquiry form — our engineers will respond within 24 hours.
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