Stainless Steel Flanged Safety Valve

COVNA Factory

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✅ Applications

• Steam boilers and pressure vessels

• Chemical and petrochemical plants

• Water treatment systems

• Air compressor stations

• Food & beverage process lines

• Pharmaceutical and cleanroom environments

Product Options

• With test lever or sealed cap

• Optional back pressure balancing bellows

• Available in Hastelloy / Duplex / PTFE-lined versions for special media

• ATEX-certified models available on request

Certification

       

AGA

       

ISO14001

       

IAF

       

SGS

       

CE

       

FDA

       

RoHS

       

SGS

FAQs

1. What is the purpose of a stainless steel flanged safety valve?

A stainless steel flanged safety valve is designed to automatically release excess pressure from a system to prevent equipment failure or accidents. The flanged connection ensures secure installation in high-pressure or industrial systems.

2. What media can this valve handle?

Our valve is suitable for a wide range of media including:
✔ Steam
✔ Compressed air
✔ Gases (e.g. nitrogen, oxygen)
✔ Water and other non-corrosive liquids
✔ Aggressive fluids (with optional materials like PTFE-lined internals)

3. Can I adjust the set pressure of the valve?

Yes. These valves are spring-loaded and pressure adjustable within a specified range (typically 0.5 to 40 bar). Set pressure can be factory-calibrated or adjusted on-site by qualified personnel.

4. Does the valve comply with international standards?

Absolutely. All our valves are manufactured in accordance with:

• EN ISO 4126 (European standard for safety valves)

• ASME Section VIII (American standard for pressure vessels)

• Tested according to ISO 5208 / EN 12266

5. What sizes are available?

We offer sizes from DN20 up to DN400, with standard flanged connections (DIN, ANSI, JIS). Custom sizes or connection types can be made upon request.

6. What certifications are provided?

Each valve comes with:

• Material Certificate EN10204 3.1

• Pressure Test Report

• ATEX certification (if required for explosive environments)

7. Can I install this valve in vertical or horizontal positions?

Yes, the valve can be installed in vertical or horizontal pipelines, depending on the specific model. Refer to the installation manual or consult our engineers for proper orientation.

Why Choose Our Stainless Steel Safety Valves?

• Corrosion-resistant design suitable for aggressive or hygienic environments

• Precision-machined internals for consistent blow-off pressure

• Maintenance-friendly construction with easy access for inspection

• Long service life, even in high-cycle operations

• Global certifications ensure compliance and peace of mind