4500D Temperature & Pressure Control Valve (2" to 4" | DN 50 to DN100)
When thermal and pressure control need to happen in the same tight space, the 4500D temperature and pressure control valve handles both with one fully integrated unit. It automatically regulates fluid temperature and relieves excess pressure to protect engines, compressors, and other heavy-duty systems. AMOT’s 4500D temperature and pressure control valve offers the reliability your operations require. Minimize failure points and reduce the need for separate components with our combination control valves today.
Features and Benefits
- Combined pressure, temperature and pressure relief in a single valve
- Remote downstream pilot pressure regulation
- 4" internally sensed 3-way temperature control valve
- Integrated pressure relief valve
- Carbon steel or stainless steel construction
- Ports for instrumentation
- Reduces installation costs (valves, piping, fittings, flanges)
- Simplifies material planning
- PED suitable for Group 1 & 2 liquids
- ATEX II 2G Ex h IIC T6…T3 Gb X
- CE
Specifications
| Flow rate: | 72 m3/hr | 320 gpm |
| Operating pressure: | 7 bar | 100 psi |
| Body material: | Carbon steel | |
| Regulator housing: | Aluminum | |
| Pipe connections: | 2" to 4" SAE J518C 3000 | |
| Weight: | 50 kg | 110 lbs. |
Applications
- Designed for use in applications where control of lubricating oil temperature and pressure is required, such as gas turbines.
Operation
The 4500 has been specifically designed and developed by AMOT Controls as a pressure and temperature regulating valve for lubricating oil applications. Oil pressure is regulated by the pilot operated Cartridge Regulator. The pilot feed to the Regulator is taken down stream of the oil filters to sense the oil pressure. Pressure is controlled by regulating the amount of oil that is dumped through the Cartridge Regulator, back to the main reservoir.
The temperature of the oil is then controlled by the internally sensed 3-way temperature in the valve. The oil flow then split between flowing through a cooler external to the valve and an internal bypass that flows directly to the thermostatic elements. The flow through the internal bypass and cooled oil returning from the cooler are mixed and regulated by the temperature elements to the desired temperature before leaving the valve. The temperature and pressure regulated oil exits the valve and flows through the lube oil system filters before flowing to the equipment requiring lubrication.
Simplified Temperature & Pressure Valve Schematic :
