- Termostatic head
- Valves with thermostatic option for double pipe
- Double settings thermostatic valves for double pipe systems
- Thermostatic kit and thermostatic valves for double pipe systems
- Manual valves and lockshields for double pipe systems
- Four-way valves with thermostatic option for single pipe and double pipe systems
- Single pipe manual valves
- Fittings for copper, pex-al-pex, pex pipe, radiator eccentrics, elbow fittings, rosette
- Single/double pipe distributors for panel with built-in thermostatic group
- Radiator air vents
- Valves and lockshields for design radiators
- Chromed thermostatic head and rosettes with pipe cover
253 | Female/Female membrane safety valve – Equipped with a pre-mounted pressure gauge
Female/Female membrane safety valve with 1/4” connection for pressure gauge. Equipped with a pre-mounted pressure gauge. Calibration pressure to be specified. PN 10, max. working temperature 110°C, opening overpressure 10%, closing pressure 20%. The product complies with the Ped. 2014/68/UE norm – category IV. CE n. 0425 approval.
PRODUCT CERTIFICATIONS
Codes and dimensions
| Art. | Size | Bar | Code |  | |
| 253 | 1/2" | 1,5 | 91253ADAC | 1 | 20 |
| 253 | 1/2" | 1,8 | 91253ADBC | 1 | 20 |
| 253 | 1/2" | 2 | 91253ADAD | 1 | 20 |
| 253 | 1/2" | 2,5 | 91253ADAE | 1 | 20 |
| 253 | 1/2" | 3 | 91253ADAF | 1 | 20 |
| 253 | 1/2" | 3,5 | 91253ADAG | 1 | 20 |
| 253 | 1/2" | 4 | 91253ADAH | 1 | 20 |
| 253 | 1/2" | 5 | 91253ADAL | 1 | 20 |
| 253 | 1/2" | 6 | 91253ADAN | 1 | 20 |
| 253 | 1/2" | 7 | 91253ADAP | 1 | 20 |
| 253 | 1/2" | 8 | 91253ADAQ | 1 | 20 |
| 253 | 1/2" | 9 | 91253ADAR | 1 | 20 |
| 253 | 1/2" | 10 | 91253ADAS | 1 | 20 |
Related products
251 | Female/Female membrane safety valve – 1/4” connection for pressure gauge
Female/Female membrane safety valve. 1/4” connection for pressure gauge. Calibration pressure to be specified. PN 10, max.working temperature 110°C, opening overpressure 10%, closing pressure 20%. The product complies with the Ped. 2014/68/UE norm - category IV. CE n.0425 approval.
Technical datasheet
Instruction sheet
Declaration of Conformity
Technical datasheet
Instruction sheet
Declaration of Conformity
PRODUCT CERTIFICATIONS
252 | Male/Female membrane safety valve – 1/4” connection for pressure gauge
Male/Female membrane safety valve. 1/4” connection for pressure gauge. Calibration pressure to be specified. PN 10,max. working temperature 110°C, opening overpressure 10%, closing pressure 20%. The product complies with the Ped. 2014/68/UE norm - category IV. CE n.0425 approval.
Technical datasheet
Instruction sheet
Declaration of Conformity
Technical datasheet
Instruction sheet
Declaration of Conformity
PRODUCT CERTIFICATIONS
GS01 | Pre-assembled safety group
Pre-assembled safety group. Automatic air vent (art. 707), 1/2” safety valve (art. 242), pressure gauge (art. 244). 3/4” F lower connections, brackets for wall-fixing. PN10, max. working temperature 110°C, opening overpressure 10%, closing pressure 20%. Safety valve CE n. 0425 approval.
Technical datasheet
Technical datasheet
GS02 | Pre-assembled safety group
Pre-assembled safety group. Automatic air vent (art. 700), 1/2” safety valve 3 bar (art. 242), pressure gauge 0-6 bar (art. 257 1/4”). 1” F lower connections. PN 10, max.working temperature 110°C, opening overpressure 10%, closing pressure 20%. Safety valve CE n. 0425 approval.
Technical datasheet
Technical datasheet
GS08 | Safety valve M/F for water heaters
Safety valve M/F for water heaters. Set calibration 8 Bars ± 0,5. Calibration at 6,7 and 11 bars on demand.
Technical datasheet G1/2"
Technical datasheet G3/4"
Technical datasheet G1/2"
Technical datasheet G3/4"
GS09 | Safety valve M/F with lever for water heaters
Safety valve M/F with lever for water heaters. Set calibration 8 Bars ± 0,5. Calibration at 6,7 and 11 bars on demand.
Technical datasheet G1/2"
Technical datasheet G3/4"
Technical datasheet G1/2"
Technical datasheet G3/4"
GS10 | Pressure limiting valve – Metal seat
Free release pressure limiting valve, adjustment 1 to 10 Bars. Metal seat, PN16,working temperature 0-200°C. Calibration pressure ± 20%.
Technical datasheet
Instruction sheet
Declaration of conformity
Technical datasheet
Instruction sheet
Declaration of conformity 
GS11 | Pressure limiting valve – Teflon seat
Free release pressure limiting valve, setting 1 to 10 Bars. Teflon seat, PN16, working temperature 0-120°C. Calibration pressure ± 20%.
Technical datasheet
Instruction sheet
Declaration of conformity
Technical datasheet
Instruction sheet
Declaration of conformity