Norgren 61B2/BT000 Pressure Relief Valve - 10 bar
Part Number: 61B2/BT000
Quick Summary
The Norgren 61B2/BT000 miniature pressure relief valve protects compressed air systems from over-pressurization and is designed for direct connection to pressure vessels in automated equipment. When line pressure rises unexpectedly, this compact, pre-set device vents excess air to prevent damage and downtime, reducing maintenance and repair costs for critical production lines. Built with CE-compliant design principles and a tamper-resistant mechanism, it supports safe operation in safety-conscious environments. Its brass body delivers durability in rugged industrial settings, while compact dimensions simplify retrofits. For automation engineers and maintenance teams, this valve offers a cost-effective balance of reliability, quick installation, and long service life, with compatibility across standard R1/4 connections and 61B2-series components.
Product Information
Extended Description
61B2/BT000 Norgren: Protect compressed air systems from over-pressurization | Simple, low cost 'Pop' type units for direct connection to pressure vessels and associated components | Pre-set and tamper resistant relief valves protected from ingress
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Port Size
R1/4
Maximum Inlet Pressure
10 bar
Flow
4.92 dm3/sec
Materials - Body
Brass
Dimensions - Height
20 mm
Dimensions - Length
20 mm
Dimensions - Width
40 mm
Weight
0.051 kg
Country of Origin
Mexico
Range
61B2
Brand
IMI Norgren
Feature Direct connection to pressure vessels via R1/4 port → Business Impact Simplified installation, reduced assembly time for compact automation panels. Application Suitable for small pneumatic lines in automated equipment. Feature Brass body → Business Impact Enhanced durability and longevity in challenging factory environments. Application Ideal for factory floor pneumatic lines where frequent cycle operation occurs. Feature Pre-set, tamper-resistant relief mechanism → Business Impact Consistent, safe operation and regulatory alignment with reduced maintenance. Application Critical control lines in automated systems benefit from reliable protection. Feature Flow 4.92 dm3/sec at up to 10 bar → Business Impact Provides adequate protection for micro air circuits while minimizing pressure loss. Application Small-diameter lines feeding actuators and valves. Feature Operating temperature -20 to 80 C → Business Impact Reliable performance across diverse plant conditions. Application Suitable for manufacturing cells and exposed environments. Feature Weight 0.051 kg → Business Impact Easy integration and retrofit in confined spaces. Application Lightweight option for compact panels and modular automation builds.
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FAQs
When installing the 61B2/BT000, ensure mating fittings match the R1/4 port and mount the valve close to the pressure vessel for direct connection. Verify the inlet pressure does not exceed 10 bar, confirm the operating temperature range (-20 to 80 C), and protect against ingress of contaminants. The compact 20x40x20 mm footprint aids installation in tight panels.
The valve provides a flow of 4.92 dm3/sec at up to a 10 bar inlet. It uses a simple pop-type relief mechanism that is pre-set and tamper resistant, ensuring consistent triggering at the designed set pressure. This makes it suitable for protecting small pneumatic circuits and actuators from surge pressure in automated lines.
Yes. Its R1/4 port size and brass body are chosen for robust connections to standard pneumatic vessels and components. The compact 20x40x20 mm package allows mounting in confined spaces, while the pre-set relief minimizes calibration needs. Direct mounting reduces leak paths and simplifies safety interlocks in automated lines.
The 61B2/BT000 is designed with CE-compliant construction and safety-oriented features, including a tamper-resistant relief mechanism. For project-specific regulatory requirements like SIL or IP ratings, consult the datasheet or your compliance team. The part supports standard industrial use in compressed air systems and aligns with common safety practices in automation environments.
Because the relief valve is pre-set and tamper resistant, maintenance intervals are longer and calibration errors are minimized, reducing downtime. Its simple pop-type design lowers replacement costs, while the brass construction ensures durability in tough environments. For lines where over-pressurization risk is a concern, the unit offers a favorable payback by preventing equipment damage and unscheduled repairs.