The Giacomini R153PX008 pressure regulator is an automatic valve designed to reduce and stabilize water or compressed air pressure in installations, maintaining it at a preset level between 1 and 5.5 bar. It is suitable for drinking water supply systems, hydraulic installations, air conditioning systems, irrigation systems, oil-free compressed air networks, and fire protection networks.
This model features a 2-inch threaded connection (G 2”F) and is designed to operate at a maximum pressure of 25 bar and temperatures up to 130°C. The outlet pressure is factory-set at 3 bar but can be manually adjusted via a screw located beneath the top cover.
The body is made of nickel-plated brass (CW617N), the pin is made of glass fiber-reinforced technopolymer, and the seals are made of durable EPDM. The sealing position is made of stainless steel (AISI 303), ensuring high reliability and long service life even under harsh conditions.
The adapter is equipped with a pressure gauge connection (Rp 1/4") and complies with the European standard EN 1567. The maximum flow rate for this model is 14 m³/h (equivalent to 233 liters per minute), making it suitable for applications requiring high flow rates.
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Product code: R153PX008
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Connections: G 2”F (female)
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Pressure adjustment range: 1 – 5.5 bar
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Factory pressure setting: 3 bar
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Maximum operating pressure: 25 bar
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Operating temperature: 0 – 130°C
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Maximum flow: 14 m³/h (233 l/min)
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Body material: nickel-plated brass
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Pin: glass fiber-reinforced technopolymer
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Seals: EPDM, stainless steel AISI 303
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Compatible with: drinking water, glycol solutions (max. 50%), oil-free compressed air
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Noise class: II (below 30 dB)
Recommended applications:
- Protection of installations from overpressure
- Ensuring stable pressure for consumers
- Installation after the water meter, at the entrance of indoor networks
- Limiting supply to boilers, water heaters, or small tanks
Installation recommendations: It is recommended to install a upstream filter to prevent dirt deposits in the regulator seat. When installed before boiler rooms, it is necessary to have an expansion tank after the regulator, even if a check valve is already present.
