01130/05 GB
Temperature and pressure relief valve
309 series
General information
The temperature and pressure relief valves (TP) 309 series are made
by Caleffi S.p.A in compliance with the essential safety requirements
laid down by Directive 97/23/EC of the European Parliament and the
Council of the European Union for harmonisation of Member States
with regard to pressurised equipment.
Function
The TP relief valve controls and limits the temperature and pressure
of the hot water contained in a domestic storage heater and prevents
it from being able to reach temperatures of over 100°C, with the
formation of steam.
On reaching the settings, the valve discharges a sufficient amount
of water into the atmosphere so that the temperature and pressure
return within the system’s operating limits.
This particular series of valves is certified as conforming to the
performance requirements of the European standard EN 1490
(for settings of 4 - 7 - 10 bar).
Product range
309 series Temperature and pressure relief valve
Sizes 1/2” x Ø 15 mm, 3/4” x Ø 15 mm and 3/4” x Ø 22 mm
CALEFFI
E
B
C
A
F
D
E
88
91
91
D
102
99
99
C
40
43
43
F
39
39
39
B
Ø 15
Ø 15
Ø 22
Weight (kg)
0,253
0,261
0,310
A
1/2”
3/4”
3/4”
Code
309
4
. .
309
542
309
5
. .
Dimensions
Technical specifications
Materials: - body:
dezincification-resistant alloy
EN 12165 CW602N
- stem:
brass EN 12164 CW614N
- obturator and diaphragm:
EPDM
- spring:
steel EN 10270-1 SH
- control knob:
PA6GF
Nominal pressure:
PN 10
Discharge rating:
- 1/2” and 3/4” Ø 15;
10 kW
- 3/4” Ø 22;
25 kW
Medium:
water
PED category:
IV
Settings:
- temperature:
90°C
- pressure:
3 - 4 - 6 - 7 - 10 bar
Connections: 1/2” M x Ø 15 mm with compression fitting for copper pipe
3/4” M x Ø 15 mm with compression fitting for copper pipe
3/4” M x Ø 22 mm with compression fitting for copper pipe
111
5
Code completion ( . . )
Code
3094..
Code
309542
Code
3095..
30
➙
3 bar
40
➙
4 bar
60
➙
6 bar
70
➙
7 bar
00
➙
10 bar
42
➙
4 bar
30
➙
3 bar
60
➙
6 bar
70
➙
7 bar
00
➙
10 bar
cert. n
°
0003
ISO 9001
