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.
