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Crosby™ J-Series Direct Spring Pressure Relief Valves

J Series Direct Spring Pressure Relief Valves

Bellows Leak Detection

JDS cutaway extracted and color

J Series Direct Spring Pressure Relief Valves

Bellows Leak Detection

JDS cutaway extracted and color

J-Series valves provide high quality and dependable overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in one simple design.

Now available with two new to the world technologies, Balanced Diaphragm and Bellows Leak Detection.

Features

ASME/NB certified capacities for air, water and steam.
Full compliance with all major global pressure relief standards including ASME VIII, XIII, API 526/527, EN4126 and PED/CE.
Highly customizable to meet most applications.
Interchangeable parts to reduce maintenance costs.
Full nozzle configuration.
Simple and reliable design for easy maintenance.
Soft seat options for superior seat tightness.
Adjustable blowdown to reduce product loss.
Restricted Lift available.
Wired or Wireless Relief Monitoring available.
Crosby™ Balanced Diaphragm
- 20% greater backpressure handling improves reliability during backpressure surges.
- 15% improvement in Kb factor enables sizing of smaller and/or fewer valves.
- 100x more resilient than metal bellows for high-frequency cycling, ensuring safety.
- Easily convert existing Crosby J-Series with Balanced Diaphragm upgrade kits
Crosby™ Bellows Leak Detection available
- Instant notification of bellows rupture allows effective maintenance protocol.
- Detection of small ruptures, from 0.0009in2 (D orifice).
- Ensured balanced operation after bellows rupture enhances safety.
- Leakage volumetric calculation in real-time for risk assessment and decision making.
- Over 90% reduction of leakage through bonnet vent.
- Easily enhance existing Crosby J-Series with Bellows Leak Detection upgrade kits.