Xiamen ZhiCheng Automation Technology Co., Ltd
"Precision Engineered, Globally Trusted – Innovating Automation Control & Modular Excellence."
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1. Product Overview: Topworx TXP-M20GNPM Non-Contact Valve Position Sensor
The Topworx TXP-M20GNPM is a rugged, high-precision valve position sensor designed for industrial automation systems operating in extreme and hazardous environments. Built with a corrosion-resistant 316L stainless steel housing (IP68/IP69K-rated), this sensor delivers reliable performance under harsh conditions, including exposure to high-pressure washdowns, abrasive chemicals, and temperatures ranging from -40°C to +120°C. Utilizing advanced Hall Effect sensing technology, it detects valve positions (open/closed or intermediate states) without mechanical contact, ensuring zero wear, long-term accuracy, and maintenance-free operation. Compatible with ball, butterfly, and gate valves, the TXP-M20GNPM is ideal for oil and gas, chemical processing, marine, and food-grade industries demanding robust and precise valve monitoring.
2. Key Technical Specifications
3. Industrial Applications and Use Cases
The TXP-M20GNPM is widely deployed in offshore oil and gas platforms to monitor subsea valve positions in explosive atmospheres, ensuring leak detection and safety compliance. In chemical plants, it provides critical feedback for valves handling corrosive fluids such as hydrochloric acid or caustic soda. Food and beverage facilities utilize its FDA-compliant design for hygienic valve control in CIP (Clean-in-Place) systems, while marine environments rely on its saltwater-resistant construction for ballast valve monitoring. Its IP68/IP69K rating also makes it suitable for wastewater treatment plants, pharmaceutical cleanrooms, and high-pressure washdown applications requiring submersion resistance.
4. Competitive Advantages and Unique Features
5. Functional Capabilities and Operational Benefits
The TXP-M20GNPM delivers real-time valve position feedback to control systems, triggering automated shutdowns or alarms during operational anomalies. Its dual outputs support redundant safety loops, critical for blowout preventers (BOPs) in oil drilling and high-risk chemical processes. The IP68/IP69K rating ensures reliability in submerged or high-pressure washdown scenarios, minimizing unplanned downtime. With optional IO-Link compatibility, it enables predictive maintenance by transmitting diagnostic data such as signal stability and temperature thresholds. The PUR shielded cable resists oils and solvents, while the FDA-compliant design meets stringent hygiene standards. These features make the TXP-M20GNPM a future-proof solution for Industry 4.0 automation and smart manufacturing.
| Category | Specification |
|---|---|
| Product Type | Valve Position Transmitter with HART Protocol & Relay Outputs |
| Model | TXP-M20GNPM |
| Voltage Supply | 12–36V DC (±15%), 24V AC/DC (universal input) |
| Current Consumption | ≤ 1.5A (operational), ≤ 3.8A (inrush) |
| Output Signals | 4–20mA analog, HART 7, Dual SPDT relays (12A @ 250V AC) |
| Enclosure Material | 316L Stainless Steel with Xylan® coating (NEMA 4X / IP68 rated) |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Hazardous Area Cert. | ATEX, IECEx (Zone 1/21, Zone 2/22), SIL 2 (IEC 61508) |
| Ingress Protection | IP68 (submersible up to 1.5m for 24 hours) |
| Sensing Technology | Non-Contact Magnetic Reed Switches (±0.5° accuracy) |
| Adjustability | Tool-Free Cam Adjustment (±5° precision); HART-programmable setpoints |
| Mounting | ISO 5211 compliant; direct to valve stems or actuators (90°–180° rotation) |
| Compatibility | Ball valves, butterfly valves, multi-turn actuators, dampers |
| Electrical Connections | Dual M20 × 1.5 stainless steel glands; gold-plated terminals (anti-corrosion) |
| Communication Protocols | HART 7, Modbus RTU (optional) |
| Certifications | ATEX, IECEx, SIL 2, CE, UL/cUL Class I Div 2, NACE MR0173, RoHS |
| Weight | ~1.9 kg (4.2 lbs) |
| Mechanical Lifespan | ≥ 8 million cycles (no load), ≥ 1.5 million cycles (rated load) |
| Warranty | 3-year standard warranty |
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Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
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we are major in PLC,Sensors,HIM,Transmitters.
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