When operating hot water systems, boilers, or solar water heaters, many technicians and investors share a common concern: sudden pressure spikes that can lead to leaks, pipe bursts, or equipment failure. To prevent such risks, the Giacomini brass safety valve offers a reliable solution. This is a premium Italian brand and a preferred choice in both residential and industrial applications.
With a compact design, high precision, and outstanding durability, Giacomini valves not only release pressure precisely at the preset threshold, but also ensure stable performance over time—meeting the stringent standards of the European market. If you’re looking for a high-quality safety valve that’s easy to install and comes with clear origin and certification, take a closer look at the Giacomini R140 and R140M brass safety valve models below.
Features of the Giacomini Brass Safety Valve – Models R140 & R140M
- The entire body is made of high-quality brass, with a smooth, refined surface and natural shine.
- Red adjustment knob with vertical ridges for a secure grip.
- Male-threaded connection at the bottom of the valve.
- Side outlet with female threading, typically used for attaching a discharge pipe or additional fittings.
- Embossed Giacomini brand logo on the valve body.
Product Codes – Giacomini Brass Safety Valve, Models R140 & R140M
Series | Product Code | Connection Size | Set Pressure [bar] |
---|---|---|---|
R140 | R140Y001 | G 1/2″ F x G 1/2″ F | 1.5 |
R140Y002 | 2.5 | ||
R140Y003 | 3 | ||
R140Y005 | 3.5 | ||
R140Y006 | 4 | ||
R140Y007 | 4.5 | ||
R140Y008 | 5 | ||
R140Y009 | 6 | ||
R140Y010 | 7 | ||
R140Y011 | 8 | ||
R140Y013 | 10 | ||
R140Y020 | G 3/4″ F x G 3/4″ F | 2 | |
R140Y021 | 1.5 | ||
R140Y022 | 2.5 | ||
R140Y023 | 3 | ||
R140Y025 | 3.5 | ||
R140Y026 | 4 | ||
R140Y027 | 4.5 | ||
R140Y028 |
See more products: Giacomini chrome-plated copper ball valve with lever code R850
Technical Specifications – Giacomini Brass Safety Valve R140
- Applications: Hot water, cold water, air
- Minimum operating temperature (Ts min): 5 °C
- Maximum operating temperature (Ts max): 110 °C
- Maximum allowable working pressure (Ps): 10 bar
- Overpressure opening threshold: +20%
- Reseating range: −20%
- PED category: IV

Materials – Giacomini Brass Safety Valve R140
- Body: Brass UNI EN 12165 CW617N
- Diaphragm: EPDM
- Stem: Brass
- Spacer: Brass UNI EN 12164 CW617N
- Gasket: Vegetable fibre
- Spring: Steel
- Spring seat: Brass UNI EN 12164 CW617N
- Cap: Brass UNI EN 12165 CW617N
- Knob: POM (Polyoxymethylene)

Reference Price List – Giacomini Brass Safety Valves
Below is a reference price list for some popular models of Giacomini brass safety valves.
Please note: Prices are subject to change depending on market conditions, order volume, and distributor policies.
Product Code | Size | Set Pressure | Reference Price (VND) |
---|---|---|---|
R140D 1/2″ | DN15 | 3 bar | 380,000 – 450,000 VND |
R141D 1/2″ | DN15 | 6 bar | 420,000 – 490,000 VND |
R146C 3/4″ | DN20 | 6 bar | 520,000 – 600,000 VND |
R147C 1″ | DN25 | 10 bar | 650,000 – 750,000 VND |
Applications of Giacomini Brass Safety Valves
Giacomini brass safety valves are commonly used in:
- Installation with water heaters, solar water heaters, and boilers
- HVAC heating systems and central air conditioning
- Pressure tanks, industrial water pumps, and fire protection foam systems (FSS)
Installation Guidelines for Giacomini Brass Safety Valves
To ensure proper installation and optimal operation of Giacomini brass safety valves, please take note of the following:
- Before installation, the responsible technician must accurately size the valve according to current regulations and standards.
- Safety valves should be installed at the highest point of the heating equipment or on the distribution pipe, no more than 1 meter away from the heat source.
- The valves must be clearly visible and easily accessible for inspection.
- The connection pipe between the safety valve and the heat generator must be free of any obstructions and have a diameter no smaller than that of the valve itself.
- The discharge piping from the safety valve must be clearly visible and routed into a pipe with a diameter no smaller than the valve’s diameter.
Conclusion
The Giacomini brass safety valve is an ideal choice for systems requiring precise, stable, and long-lasting pressure control. With its compact design, premium materials, and reliability meeting European standards, this product is suitable for both residential and industrial applications — from water heaters and boilers to HVAC and fire protection systems.
If you are looking for a genuine, high-performance pressure relief device at a reasonable price, let Thép Bảo Tín be your trusted partner. Additionally, we are an importer and distributor of steel pipes, steel boxes, steel profiles, and various piping accessories. Contact us directly at 0932 059 176 for personalised support.