Pressure Switches (Ex d)
Explosion-proof pressure switches designed for dependable alarm, interlock, and shutdown functions in wellhead safety and hydraulic control systems.
Available Models
Standards & Compliance
Contact our engineering team for NACE compliance verification, material selection guidance, and custom configuration support.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Hazardous Area Certification | ATEX II 1/2 G Ex d IIC T6, IECEx Ex d IIC T6 |
| Pressure Range | Vacuum to 6,000 PSI (standard), up to 10,000 PSI (high-pressure) |
| Switching Accuracy | ±0.5% to ±1% of range (depending on model) |
| Repeatability | ±0.25% of range |
| Set Point Adjustment | Field adjustable with tamper-proof locking |
| Deadband | 2-20% adjustable (standard), fixed 5% (compact models) |
| Electrical Contacts | SPDT (standard), DPDT (optional), gold-plated |
| Switch Rating | 10A @ 250V AC, 5A @ 28V DC (resistive) |
| Process Connection | 1/4" NPT, G1/4, 1/2" NPT (standard), flanged options |
| Wetted Materials | 316 stainless steel (standard), Hastelloy, Monel options |
| Housing Material | 316 SS flameproof enclosure, epoxy coated |
| Operating Temperature | -40°C to +85°C (electronics), -60°C to +120°C (process) |
| Protection Rating | IP66/67, NEMA 4X |
| Vibration Resistance | 5 g RMS, 10-2000 Hz per IEC 60068-2-6 |
| Shock Resistance | 50 g, 11 ms per IEC 60068-2-27 |
| Response Time | < 10 ms (typical) |
| Electrical Connection | M20 x 1.5 cable gland, 1/2" NPT optional |
| Certifications | ATEX, IECEx, IEC, CE, RoHS compliant |
Key Features & Benefits
Adjustable Set Points
Field-adjustable switching points with tamper-proof locking mechanism for precise pressure control.
High Switching Accuracy
±0.5% accuracy with excellent repeatability ensures reliable operation in safety-critical applications.
High-Pressure Capability
Designed for pressures up to 10,000 PSI with robust construction for demanding oil & gas service.
Explosion-Proof Design
Flameproof Ex d construction certified for Zone 1 and Zone 2 hazardous locations.
Rugged Industrial Construction
316 stainless steel housing with IP66/67 protection for harsh environmental conditions.
Easy Installation & Maintenance
Standard process connections and accessible adjustment for straightforward field service.
Industrial Applications
Pressure switches are essential components in safety and control systems for various industrial applications:
ESD Systems
Emergency shutdown logic for pressure-based safety interlocks in hazardous areas
Pressure Alarms
High and low pressure alarm functions for process monitoring and safety
Hydraulic Control Panels
Pressure switching for hydraulic system control and monitoring functions
Wellhead Safety Logic
Safety-critical pressure switching in wellhead control and safety systems
Technical Documentation & Downloads
Product Datasheet
Complete technical specifications and performance data
Installation & Operation Manual
Detailed installation, configuration, and maintenance guide
ATEX/IECEx Certificate
Hazardous area certification documentation
3D CAD Model (STEP)
3D model for integration into engineering designs