4087 Exhaust Gas Temperature Valve
The AMOT 4087 exhaust gas temperature valve delivers precise and reliable protection for diesel and industrial engines operating under extreme heat. This 2-way temperature sensing valve remains closed during normal operation and automatically trips open when the exhaust gas temperature exceeds the set point, venting control pressure to initiate a system shutdown or alarm.
Designed for applications that demand long life and high performance, the 4087 valve provides temperature sensing capabilities from 150°C to 760°C (300°F to 1400°F). Its stainless steel well ensures strength and heat resistance, while Viton® seals maintain leak-free performance in severe thermal cycles. Operators can choose between manual or pneumatic reset models for flexibility in engine or process safety configurations.
For extended temperature control solutions, explore our Thermostatic 2 Way Control Valves to complement this valve within a full AMOT safety system.
Key Features & Benefits
- Reliable high-temperature sensing for exhaust and process systems
- Adjustable temperature ranges: 150°C–760°C (300°F–1400°F)
- Available with manual or pneumatic reset options
- Durable stainless steel well and aluminum valve body
- Viton® seals for long-term chemical and heat resistance
- Compact design for easy installation and servicing
- Designed for engine shutdown and over-temperature protection
- Low maintenance and field-proven performance in harsh environments
Accessories
- 625 - O-ring, Viton
- 257L001 - O-ring, Viton
- 866L001 - Grease, High Temperature
| Valve body and spool: | Aluminum | |
| Well material: | 347 stainless steel | |
| Maximum Pressure at IN Port: | 8.6 bar | 125 psi |
| Maximum Pressure Outside Well: | *68.9 bar | 1000 psi |
| Pneumatic Reset: | 2.7 bar | 40 psi |
| Minimum Reset Pressure: | 10.3 bar | 150 psi |
*: Pressure shown is maximum allowable.
- A snap-acting valve actuated by increasing temperature on the well and intended for use principally as an exhaust gas temperature sensor.
