Thermostatic Radiator Valves CALEFFI 220 Series 01034/15 GB ACCREDITED Replaces 01034/05 GB ISO 9001 FM 21654

Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 1

Thermostatic radiator valves CALEFFI 220 series 01034/15 GB ACCREDITED replaces 01034/05 GB ISO 9001 FM 21654

Function

Thermostatic radiator valves are typically used for regulating the medium flow to the radiators of heating systems. When combined to a thermostatic or thermo-electric control head, they keep the ambient temperature of the room where they are installed constant at the set value. This prevents unwanted temperature rises and achieves considerable energy savings.

These valves have a special tailpiece with rubber hydraulic seal, permitting quick, safe connection to the radiator without the use of additional sealing materials.

028

Product range VALVES: For steel pipes: 220 series Angled thermostatic radiator valve for steel pipe sizes 3/8”, 1/2”, 3/4” (*) 221 series Straight thermostatic radiator valve for steel pipe sizes 3/8”, 1/2”, 3/4” (*) 224 series Reverse thermostatic radiator valve for steel pipe sizes 3/8”, 1/2” 225 series Double-angled thermostatic radiator valve for steel pipe sizes 3/8” and 1/2” RH version, 3/8” and 1/2” LH version 225 series Double-angled lockshield valve for steel pipe sizes 3/8” and 1/2” RH version, 3/8” and 1/2” LH version For plastic and copper pipes: 222 series Angled thermostatic radiator valve for copper pipe sizes 3/8”, 1/2” radiator x 23 p.1,5 piping 223 series Straight thermostatic radiator valve for copper pipe sizes 3/8”, 1/2” radiator x 23 p.1,5 piping 226 series Double angled thermostatic radiator valve for copper pipe sizes 1/2” radiator x 23 p.1,5 piping RH and LH version 226 series Radiator lockshield valve for copper pipe sizes 1/2” radiator x 23 p.1,5 piping RH and LH version 227 series Reverse thermostatic radiator valve for copper pipe sizes /2” radiator x 23 p.1,5 piping THERMOSTATIC CONTROL HEADS 200 series Thermostatic control head with built-in sensor with liquid-filled element adjustment scale ? –5 corresponding to 7–28°C 201 series Thermostatic control head with remote sensor with liquid-filled element adjustment scale ? –5 corresponding to 7–28°C 202 series Thermostatic control head with LCD type room temperture indicator adjustment scale ? –5 corresponding to 7–28°C 203 series Thermostatic control head with contact probe for fluid temperature limitation adjustment scale 20–50°C, 40–90°C Code 204000 Thermostatic control head with built-in sensor with liquid-filled element adjustment scale ? –5 corresponding to 7–28°C Code 204100 Thermostatic control head with remote sensor with liquid-filled element adjustment scale ? –5 corresponding to 7–28°C Code 209000 Tamper-proof anti-theft cap for use in public places Code 209001 Special allen key for tamper-proof anti-theft cap * 3/4” with tailpiece without rubber seals

Technical specification of valve bodies Technical specification of control heads Material 200/201/202/204 series Body: brass EN 12165 CW617N, chrome plated Adjustment scale: ?–5 Obturator stem: stainless steel Temperature adjustment range: 7–28°C EN 10088-3 (AISI 303) Frost protection cut-in: 7°C Hydraulic seals: EPDM Max. ambient temperature: 50°C Control knob and cap: ABS (RAL 9010) Length of capillary, 201 series and code 204100: 2 m LCD type ambient temperture indicator 202 series: 16–26°C Performance Medium: water, glycol solutions Technical specification of control heads 203 series Max. percentage of glycol: 30% Max. differential pressure with control head fitted: 1 bar Adjustment temperature range: - code 203502 20–50°C Max. working pressure: 10 bar - code 203702 40–90°C Working temperature range of thermal medium: 5–100°C Max. sensor temperature: 100°C Max. pocket pressure: 10 bar Control adjustment scale, 200/201/202/204 series Length of capillary: 2 m 0 ? 1 2 · · · 3 · · · 4 5

5°C 7°C 12°C 16°C 20°C 24°C 28°C Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 2

Dimensions

RH version C

C C

4 2 3 · ···· ·

4 2 2 3 1 4 2 3 · ···· · · ···· · ···· · · ? F F F A B A B A E E D B D E D Code ABCDFE 223402 + 200001 1/2” 23 p.1,5 48 2452,5104 Code A B C D E F 223302 + 200001 3/8” 23 p.1,5 48 4810421 Code A B C D E F 225312 + 200001 3/8” 3/8” 48 51 25 104 220302 + 200001 3/8” 3/8” 48 48 20 100 225412 + 200001 1/2” 1/2” 48 57 30 104 2 220402 + 200001 1/2” 1/2” 48 52,5 23 100 · A

LH version 3 220500 + 200001 3/4” 3/4” 48 62 26 100 C D ···· · C 4

4 2 3 2 1 ? F E · ···· · · ···· · F

Code A B C D E F

4 2 3 ···· ·

· 227402 + 200001 1/2” 23 p.1,5 48 37 51 104 F B A RH version A B E D

E D Code A B C D E F 225322 + 200001 3/8” 3/8” 48 51 25 104 225422 + 200001 1/2” 1/2” 48 57 30 104 Code A B C D E F 221302 + 200001 3/8” 3/8” 48 48 26 104 221402 + 200001 1/2” 1/2” 48 52,5 29 104 C

221500 + 200001 3/4” 3/4” 48 62 35 104

4 2 3 ···· · · Code ABC D E F

F 226412 + 200001 23 p. 1,5 1/2” 48 57 27,5 104 2 ·

A LH version 3 C D ···· · A 4 E

B B F E D

Code A B C D E F Code A B C D E F 224302 + 200001 3/8” 3/8” 48 35 45 104 222402 + 200001 1/2” 23 p.1,5 48 52,5 20,5 100 224402 + 200001 1/2” 1/2” 48 40 51 104 222302 + 200001 3/8” 23 p.1,5 48 4817,5 100

C H Code ABC D E F 226422 + 200001 23 p. 1,5 1/2” 48 57 27,5 104 1/2” F

E C

3 4 2 ···· · · Ø13 B G 187 B

A D

Code ACDB E FGCode H A 200001 30 p.1,5 80 48 201000 30 p.1,580 48 33 95 Code A B C D E 203502 30 p.1,5 80 48 Ø 11 158 475002 11,5 Code A B C 204000 30 p. 1,5 74 48 203702 30 p.1,5 80 48 Ø 9,5 134 475003 10 202000 30 p. 1,5 85 48 204100 30 p. 1,5 74 48 33 95 Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 3

Operating principle of thermostatic control head Hydraulic charateristics

The thermostatic valve control head is a proportional temperature Details are given in accordance with the specification in standard EN 215. regulator, consisting of bellows containing liquid. When the ambient temperature increases, this causes an expansion in volume in the bellows, which, in turn, dilate. When the temperature falls, the Thermostatic valves with angled connections 220 series, with reverse takes place: the bellows contract due to the effect of the straight connections 221 series for steel pipe (3/8” and 1/2”) thrust generated by the return spring. The axial movement of the and thermostatic valves with angled connections 222 series sensitive element is trasmitted to the valve obturator through the and with straight connections 223 series for copper pipe (*); connecting spindle, thus regulating the flow of liquid to the heat with thermostatic control head 200, 201 or 204 series emitter. Δp (mm w.g.) s-1K s-2K Δp (kPa) Valve closed Valve open 2 3 4 2 3 4 3000 30 2000 20 1000 10

500 5

200 2 100 1

50 0,5

20 0,2 10 0,1 Construction details 10 20 50 100 200 500 1000 2000 Valve G (l/h) The control stem is stainless steel with EPDM O-Ring 221302 221402 220302/402 Δp (mm w.g.) 1 2 223402 3 222402 Δp (kPa) double seal. This means that 3000 30 the upper part of the control 2000 Fully 20 FO Open device can be replaced even 1000 10 when the system is in operation. The obturator is 500 5 shaped in such a way as to 1 2 3 200 2 optimise the fluid-dynamic characteristics of the valve 100 1 during the progressive 50 0,5 opening and closing actions in thermostatic operation. The 20 0,2 large passage between seat 10 0,1 and obturator causes 10 20 50

reduced pressure drops in 100 200 500 1000 2000 manual use. G (l/h)

Valves with angled connections

Tailpiece with rubber seal Kv (m3/h)

The coupling union to the radiator connection thread has a Code Size Proportional band (K) specially shaped rubber ring. This system guarantees the hydraulic 11,5 2 3 Kvs seal with no need for further sealing materials, such as PTFE tapes etc. 220302 3/8” 0,32 0,49 0,57 0,85 2,29 220402/222402 1/2” 0,32 0,49 0,57 0,85 2,39

Nominal flow Obturator Max. diff. press. Thermostatic control head with temperature indicator, Code Size 202 series rate (l/h) autority (bar) 220302 3/8” 180 0,92 0,1 Room temperature indicator The room temperature indicator, 220402/222402 1/2” 180 (170*) 0,92 0,1

mounted on the front of the *With control head 201 series

thermostatic control, is of the LCD Valves with straight connections type. It highlights the actual room temperature reading in green, to Kv (m3/h) enable precise regulation of the Code Size Proportional band (K) temperature to the desired value. 11,5 2 3 Kvs N 221302 3/8” 0,32 0,49 0,57 0,85 1,09 Visibility with sufficient 221402/223402 1/2” 0,32 0,49 0,57 0,85 1,52 lighting

Nominal flow Obturator Max. diff. press. Code Size Pivoting system rate (l/h) autority (bar) A particular pivoting system keeps the indicator always vertical thus 221302 3/8” 180 0,60 0,1 allowing its optimal visualization. 221402/223402 1/2” 180/200 0,60 0,1

Kv = Flow rate in m3/h producing a pressure drop of 1 bar Kvs = Kv with valve fully open Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 4

Thermostatic valves with angled connections 220 series, with straight Thermostatic valves with reverse connections for steel pipe 224 connections 221 series for steel pipe (3/4") (*); with thermostatic control series and for plastic and copper pipe 227 series (*); thermostatic head 200, 201 or 204 series. valves with double angled connections for steel pipe 225 series and for copper pipe 226 series with thermostatic control head 200, 201 or 204 series. Δp (mm w.g.) s-1K s-2K Δp(kPa) 3000 30 Δp (mm w.g.) s-1K s-2K Δp (kPa) 2000 20 3000 30 1000 10 2000 20 1000 10 500 5 500 5 200 2 100 1 200 2 100 1 50 0,5 50 0,5 20 0,2 10 0,1 20 0,2 10 0,1 10 20 50 100 200 500 1000 2000 10 20 50 100 200 500

G (l/h) 1000 2000 G (l/h)

Δp (mm w.g. ) 1 221500 2 220500 Δp (kPa) 224302 Δp (mm w.g.) 1 2253. 2/2254. 2 2 224402 Δp (kPa) 3000 30 2264. 2 227402 3000 30 2000 Fully 20 FO Open 2000 Fully 20 1000 10 FO Open 1000 10 500 5 500 5 1 2 200 2 200 2 1 2 100 1 100 1 50 0,5 50 0,5 20 0,2 20 0,2 10 0,1 10 0,1 10 20 50 100 200 500 10 20 50 1000 2000 100 200 500 G (l/h) 1000 2000 Valves with angled connections Valves with reverse connections

Kv (m3/h) Kv (m3/h)

Code Size Proportional band (K) Code Size Proportional band (K)

11,52 3 Kvs 1 1,5 2 3 Kvs 220500 3/4” 0,40 0,63 0,76 1,00 3,19 224302 3/8” 0,36 0,49 0,57 0,77 0,93 224402 1/2” 0,36 0,49 0,57 0,77 1,39 Nominal flow Obturator Max. diff. press. Code Size 227402 1/2” 0,36 0,49 0,57 0,77 1,39 rate (l/h) autority (bar) Nominal flow Obturator Max diff. press. 220500 3/4” 240 0,93 0,1 Code Size rate (l/h) autority (bar) Valves with straight connections 224302 3/8” 180 0,65 0,1 224402 1/2” 180 0,93 0,1 Kv (m3/h)

Code Size Proportional band (K) 227402 1/2” 180 0,93 0,1

11,52 3 Kvs 221500 3/4” 0,40 0,63 0,76 1,00 2,20 Valves with double angled connections

3 Nominal flow Obturator Max. diff. press. Kv (m /h) Code Size Code Size rate (l/h) autority (bar) Proportional band (K) 1 1,5 2 3 Kvs 221500 3/4” 240 0,86 0,1 2253.2 3/8” 0,36 0,49 0,57 0,77 0,96 (*) Certification 2254.2 1/2” 0,36 0,49 0,57 0,77 1,40 2264.2 1/2” 0,36 0,49 0,57 0,77 1,40 Caleffi valves 220, 221 series sizes 3/8”, 1/2”, 3/4”; 222, 223, 224 and 225 series sizes 3/8”, 1/2”; 226 and 227 series size 1/2", in Nominal flow Obturator Max diff. press. combination with control heads 200, 201 and 204 series, are Code Size approved to standard EN 215. 202 and 203 series control heads are rate (l/h) autority (bar) not approved according to EN 215 standard. 2253.2 3/8” 180 0,60 0,1 Influence of Influence of Response time 2254.2 1/2” 180 0,80 0,1 Hysteresis differential water minutes Code 2264.2 1/2” 180 0,80 0,1 [C] pressure temperature [D] [W] [Z] 200000 0,4 K 0,5 K 1 K 18 minutes System sizing 201000 0,4 K 0,5 K 0,5 K 18 minutes For correct system sizing, the valves are normally selected by 204000 0,4 K 0,5 K 1 K 23 minutes identifying the pressure drop in accordance with the flow on 204100 0,4 K 0,5 K 0,5 K 18 minutes diagrams s-2K as above (regulation with proportional band of 2K). Additional information available on request. Depl. 01034-15_Depl.01034-0501/04/1516:25Pagina5 1/2" 3/8" 1" with angledconnections1",431series Lockshield valve with angledconnections3/4",431series Lockshield valve with angledconnections1/2",342and431series Lockshield valve with angledconnections3/8",342and431series Lockshield valve 3/4" Δp 1000 2000 5000 1000 2000 5000 1000 2000 5000 1000 2000 5000 Δp Δp Δp 100 200 500 100 200 500 100 200 500 100 200 500 (mmw.g.) Kv 10 20 50 10 20 50 (mm w.g.) 10 20 50 10 20 50 (mm w.g.) (mm w.g.) Kv Kv Kv

0,01 10 10 10 10 0,01 0,01 0,01 =564l/h =399l/h =242l/h 20 =452l/h 20 20 20

50 50 50 50 1 / 4 1 100 2 100 /4 2 1 / 2 3 100 1/2 100 4 3 1 200 5 200 1 2 4 fully o 6 5 2 200 pen 7 ful 6 fu 200 f l u ly op ly open lly open 500 500 en

500 1000 1000 500

2000 2000 1000 1000 G (l/h) G (l/h) G (l/h) G (l/h) Δp Δp Δp Δp ( ( ( ( 5000 5000 2000 2000 kPa kPa kPa kPa 10 20 50 10 20 50 10 20 50 10 20 50 0,1 0,2 0,5 1 2 5 0,1 0,2 0,5 0,1 0,2 0,5 0,1 0,2 0,5 1 2 5 1 2 5 1 2 5 ) ) ) ) 1/2" Kv 3/4" Kv with straightconnections3/4",432series Lockshield valve with straightconnections1/2",343and432series Lockshield valve with straightconnections3/8",343and432series Lockshield valve 1" Kv with straightconnections1",432serie Lockshield valve 3/8" Kv 1000 2000 5000 1000 2000 5000 1000 2000 5000 Δp 1000 2000 5000 Δp Δp (mmw.g.) Δp 100 200 500 100 200 500 100 200 500 100 200 500 10 20 50 10 20 50 10 20 50 10 20 50 (mm w.g.) (mm w.g.) (mm w.g.)

0,01 10 10 10 10 0,01 0,01 0,01 =481l/h =132l/h 20 =258l/h 20 =217l/h 20 20

50 50 1 / 50 50 4 1 / 2 1 2 / 100 100 4 2 1 3 1 / 4 100 2 100 fully op 2 200 5 200 3 1 e n 6 4 ful 2 l fu 5 y 7 l op fu ly 200 o 200 e ll pen n y o 500 pen 500

1000 1000 500 500

2000 2000 1000 1000 G (l/h) G (l/h) G (l/h) G (l/h) Δp Δp Δp Δp (

5000 ( 5000 (

( 2000

2000 kPa kPa kPa kPa 10 20 50 10 20 50 10 20 50 10 20 50 0,1 0,2 0,5 0,1 0,2 0,5 0,1 0,2 0,5 1 2 5 0,1 0,2 0,5 1 2 5 1 2 5 1 2 5 ) ) ) )

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Lockshield valve with double angled connections 3/8", 225 series Δp (mm w.g.) Δp (kPa) 5000 50

2000 20

1000 10

1 1

3 2 3 2 4 500 5 4 2 3 4

200 fully open 2 100 1 a a 50 0,5 a a a a a a 20 0,2 a a a a 10 0,1 10 20 50 100 200 500 1000 2000

3/8" Kv0,01 = 242 l/h G (l/h)

Lockshield valve

4 with double angled connections 1/2", 225 and 226 series 4 Δp (mm w.g.) Δp (kPa) 5000 50 2000 20 a a 1000 10 a a a a 500 5 2 3 4 Before fitting the thermostatic 200 2 control head, turn the control 100 fully open 1 knob to the number 5 position. 50 0,5 4 5 20 0,2 0 Control head with remote 10 0,1 sensor 10 20 50 100 200 500

1000 2000 In some situations, the 1/2" Kv0,01 = 399 l/h G (l/h) installation of the thermostatic control head in horizontal position could be impossible Installation (for example in case of interference with an opening of Thermostatic control heads should be installed in horizontal position, a door). In these cases, using by respecting the flow direction as indicated by the arrow on the the thermostatic control head valve body. with remote sensor, the control head can be installed also in vertical position. This can be 0

CALEFFI

? done because the remote CALEFFI CALEFFI 1 2

· sensor guarantees correct · · 3 ambient temperature reading. 1,5 m

The remote sensor of this type of thermostatic control head must 10 cm a a a a be installed at a height range a a : in case of uncorrect installation of the valve complete Warnings between 10 cm and 1,5 m. a a a a aaa aaa with thermostatic control head, two possible problems a a a a can arise in the system:

1) Presence of vibrations similar to hammering is caused by the Tamper-proof and medium flowing through the valve in the opposite way with respect antitheft cap to the direction indicated by the arrow on the body. The problem can be solved by resetting the correct flow direction. The thermostat control can be protected against tampering and 2) Presence of a sound or whistle during modulation phase is due to theft by mounting the cover eccessive head on the valve. The problem can be solved by (code 209000) on the knob as keeping under control the system pressure with devices such as shown in the figure at side. variable speed pumps combined to pressure differential The cover is fastened with two regulators or using differential by-pass valves. screws with special heads that The sensitive element of the thermostatic control heads must not be can only be tightened or loosened sited in niches, alcoves, behind curtains, directly exposed to sunlight by means of the appropriate or underneath projecting shelves which would falsify the readings. In wrench. (code 209001). these cases the thermostatic control head with remote sensor Suitable for control heads 200, code 201000 or 204100 is requested. 202 series and code 204000 Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 7

Locking and restricting the thermostat control temperature

Temperature restriction

1. Turn the knob 2. Turn the knob b 3. Re-lock the to the fully open b to the new ring. The valve position (Pos.5). maximum open will now have a Using a position required temperature screw driver, (e.g. Pos.3). range restriction unlock the ring, Turn the ring from 0 to the set pressing it fully anti-clockwise value. towards the valve up to the stop. b body.

Locking the temperature 1. Turn the knob to b 2. Position the b 3. Re-lock the the fully open valve at the ring. The valve position (Pos.5). required will now be Using a temperature locked at the set screw driver, and turn the ring temperature. unlock the ring, clockwise up to pressing it fully the stop. towards the valve b body.

Resetting the temperature restriction and temperature lock

1. Using a 2. Turn the knob b 3. Re-lock the screw driver, b to the fully open ring. The valve unlock the ring, position and the will now no pressing it ring anti-clockwise, longer have any

fully towards the up to the stop. temperature valve body. b The RESET arrows restriction or lock will match up.. b

SPECIFICATION SUMMARIES 220 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Angled connections for steel pipes 3/8”, 1/2” and 3/4”. Radiator connection 3/8” and 1/2” M with tailpiece equipped with EPDM seal, 3/4” with tailpiece without seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

221 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Straight connections for steel pipes 3/8”, 1/2” and 3/4”. Radiator connection 3/8” and 1/2” M with tailpiece equipped with EPDM seal, 3/4” with tailpiece without seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

222 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Angled connections for copper and single and multilayer plastic pipes 23 p1,5 M. Radiator connection 3/8” and 1/2” M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

223 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Straight connections for copper and single and multilayer plastic pipes 23 p1,5 M. Radiator connection 3/8” and 1/2” M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

224 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Reverse connections for steel pipes 3/8” and 1/2” F. Radiator connection 3/8” and 1/2” M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

225 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Double angled connections for steel pipes 3/8” and 1/2” F. Radiator connection 3/8” and 1/2” M, right-hand or left-hand version with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

225 series Lockshield valve. Double angled connections for steel pipes 3/8” and 1/2”. Radiator connection 3/8” and 1/2” M right-hand or left-hand version with tailpiece equipped with EPDM seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Working temperature range 5–100°C. Maximum working pressure 10 bar. Depl. 01034-15_Depl. 01034-05 01/04/15 16:25 Pagina 8

226 series Thermostatic valve for radiators fitted for thermo-electric and thermostatic control heads. Double angled connections for copper, single and multilayer plastic pipes. Radiator connection 1/2” right-hand or left-hand version with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5-100°C. Maximum working pressure 10 bar.

226 series Lockshield valve. Double angled connections for copper, single or multilayer plastic pipes. Radiator connection 1/2” right-hand or left-hand version with tailpiece equipped with EPDM seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Working temperature range 5–100°C. Maximum working pressure 10 bar.

227 series Thermostatic valve for radiators suitable for thermo-electric and thermostatic control heads. Reverse connections for copper and single and multilayer plastic pipes 23 p.1,5 M. Radiator connection 1/2” M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. Control knob in ABS white RAL 9010. Double seal on control stem with EPDM O-Rings. Working temperature range 5–100°C. Maximum working pressure 10 bar.

342 series Lockshield valve. Angled connections for copper, single or multilayer plastic pipes. Pipe connections 23 p.1,5 and 3/4" M. Radiator connection 3/8" or 1/2" M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Outward seal consisting of EPDM O-Ring on control stem. Working temperature range 5-100°C. Maximum working pressure 10 bar.

343 series Lockshield valve. Straight connections for copper, single or multilayer plastic pipes. Pipe connections 23 p.1,5 and 3/4" M. Radiator connection 3/8" or 1/2" M with tailpiece equipped with EPDM seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Outward seal consisting of EPDM O-Ring on control stem. Working temperature range 5–100°C. Maximum working pressure 10 bar.

431 series Lockshield valve. Angled connections for steel pipes 3/8", 1/2", 3/4" or 1". Radiator connection 3/8" or 1/2" M with tailpiece equipped with EPDM seal, 3/4" and 1" M with tailpiece without seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Outward seal consisting of EPDM O-Ring on control stem. Working temperature range 5–100°C. Maximum working pressure 10 bar.

432 series Lockshield valve. Straight connections for steel pipes 3/8", 1/2", 3/4" or 1". Radiator connection 3/8" or 1/2" M with tailpiece equipped with EPDM seal, 3/4" and 1" M with tailpiece without seal. Brass body. Chrome plated. White cap RAL 9010 in ABS. Outward seal consisting of EPDM O-Ring on control stem. Working temperature range 5–100°C. Maximum working pressure 10 bar.

200 series Thermostatic control head for thermostatic and convertible radiator valves. Sensor incorporated with liquid-filled element. Maximum ambient temperature 50°C. Graduated scale from to 5 corresponding to a temperature range from 7 to 28°C, with possibility of temperature restriction and locking. Frost protection cut-in at 7°C. TELL certification, class A.

201 series Thermostatic control head for thermostatic and convertible radiator valves. Remote sensor incorporated with liquid-filled element. Maximum ambient temperature 50°C. Graduated scale from to 5 corresponding to a temperature range from 7 to 28°C, with possibility of temperature restriction and locking. Frost protection cut-in at 7°C. TELL certification, class A.

202 series Thermostatic control head for thermostatic and convertible radiator valves. Sensor incorporated with liquid-filled element, with LCD digital room temperature indicator. Maximum ambient temperature 50°C. Graduated scale from to 5 corresponding to a temperature range from 7 to 28°C, with possibility of temperature restriction and locking. Frost protection cut-in at 7°C. Room temperature indicator range from 16 to 26°C.

203 series Thermostatic control head with contact probe, for fluid temperature restriction. Setting temperature range 20–50°C (40–90°C). Maximum sensor temperature 100°C. Numbered scale, with possibility of temperature restriction and locking. Length of capillary 2 m.

Code 204000 Thermostatic control head for thermostatic and convertible radiator valves. Sensor incorporated with liquid-filled element. Maximum ambient temperature 50°C. Graduated scale from to 5 corresponding to a temperature range from 7 to 28°C, with possibility of temperature restriction and locking. Frost protection cut-in at 7°C.

Code 204100 Thermostatic control head for thermostatic and convertible radiator valves. Remote sensor with liquid-filled element. Lenght of capillary 2 m. Maximum ambient temperature 50°C. Graduated scale from to 5 corresponding to a temperature range from 7 to 28°C, with possibility of temperature restriction and locking. Frost protection cut-in at 7°C.

209 series Tamper-proof and antitheft cap for thermostatic control head, for use in public places.

We reserve the right to make changes and improvements to the products and related data in this publication, at any time and without prior notice.