Farris API 526 Safety Relief Valves for High Pressure and Temperature Applications
At Heaps, our focus is on delivering solutions that truly stand the test of extreme environments. That’s why Farris API 526 compliant valves, specifically the Farris 2600 and 2600L Series Spring Loaded Safety Valves, are a cornerstone of our high-pressure, high-temperature safety relief valve offering.
Farris API 526 Performance Under Challenging Conditions
Choosing a valve built to API 526 means choosing reliability. The Farris 2600 and 2600L Series conform fully to API Standard 526 and feature a robust full-nozzle design that delivers high flow capacity, tight sealing and resistance to piping strain.
High SetPressure Capability
These valves are certified for set pressures from 15 to 6000 psig (1.0 to 413 barg), making them ideal for applications with exceptionally high pressure requirements. Whether safeguarding steam boilers or pressurised vessels, Farris valves delivered by Heaps operate reliably at the upper edge of industrial pressures.
Extreme Temperature Range
Operating from −450 °F (−268 °C) up to +1500 °F (815 °C), the Farris API 526 valves are engineered to function seamlessly across extremely low to very high temperatures, even cryogenic conditions, to ultra-hightemp oil or gas lines.
How Farris Handles Harsh Conditions: Design Highlights
Being exposed to extremes demands design excellence. Here’s how the Farris API 526 design keeps systems safe:
Full Nozzle and Integrated Flanges
The full-nozzle design enhances stability under high piping strain and improves sealing integrity. Integral cast inlet flanges maintain alignment under thermal cycling and heavy discharge load.
Isolation of Bonnet and Spring Chamber
Even under high temperatures, heated media is prevented from entering the bonnet spring chamber. This avoids premature spring relaxation, so the valve’s blowdown remains stable during sustained discharge.
Self-Aligning Disc and Sleeve Guide
A double universal ball joint and integral sleeve guide ensure the disc aligns positively with the nozzle seat even under piping flex or thermal distortion, reducing leaks and improving long-term tightness.
Balanced Bellows & ORing Seat Options
For high backpressure or liquid service, Farris offers a balanced bellows version, particularly useful in corrosive or pulsating applications, and optional Oring seating for enhanced sealing performance.
Farris API 526: Material Choices for Extreme Environments
We offer Farris API 526 valves in a wide range of materials: carbon and stainless steels, high/lowtemp alloy steels, Monel®, Hastelloy C®, duplex steels and NACEcompliant alloys. These options help you match corrosive, cryogenic or nuclear service needs precisely
Applications Where Farris API 526 Valves Excel
Because they are certified by ASME NB for Air, Steam and Water service, and CE approved, they’re suited for heavy-duty use across industries such as:
- Oil & Gas, Petrochemical
- Power and Energy
- Chemical and General Industry
- Naval, Marine and Nuclear Facilities
- Food, Beverage, Pharmaceutical, Water Treatment
We often recommends the 2600L (multimedia) version for liquid-heavy systems, as it’s dual ASME NB certified for both gas and liquid service.
Why Choose Heaps’ Farris API 526 Valves for Your Project?
- Wide Pressure & Temperature Range – 15–6000 psig and −450 °F to +1500 °F, covering extreme scenarios without compromise.
- Exceptional Sealing and Tightness – design features that reduce leakage and cope with thermal distortion.
- Flexible Metallurgy & Options – materials and accessories to meet specific process and compliance needs.
- HeavyDuty Credentials – full nozzle, balanced bellows, open bonnet, or Oring options for demanding services.
- Certifications You Can Trust – ASME NB, CE, API 526 compliance, NACEcompliant options, multiple international approvals
Installation & Maintenance for Extreme Applications
- SteamJacket Ready: an optional steamjacket accessory helps maintain temperature control and simplifies maintenance in cold or viscous media systems.
- Easy BlowDown Adjustment: a simple single blowdown ring design allows accurate set and blowdown configuration in-shop or in-field
- Interchangeable Parts: modular design enables easy conversion (e.g. balanced bellows retrofit) with minimal part changes and reduced downtime.
If you’re seeking Farris API 526 performance in the toughest environments, our Farris 2600 and 2600L Series deliver unmatched reliability. Whether you’re dealing with high set pressures, cryogenic temperatures, or superheated streams, our valves are engineered to perform and to protect.
Contact us at Heaps to discuss your system’s particular pressure, temperature or material requirements. We’re always ready to help you pick the right Farris API 526 solution.
