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Registration-No.
NW-6130AS2114
Alwa-KFR
with external threads
Alwa-F-KFR with
flanges
Construction
The Alwa-KFR consists of:
• Y-pattern valve housing with test cock. Available pipe
connections see Dimensions and Ordering Information
• Valve insert with backflow preventer
• Handwheel
• Pipe connection (accessory)
• Draining facility (optional)
Materials
• Red bronze housing
•Valve insert made of red bronze and brass
• Cone made of red bronze and plastic
• Closing spring made of stainless spring steel
• Handwheel made of sheet steel, painted red
• O-rings and soft seals made of EPDM
• EPDM seat sealing
• Optional draining facility made of red bronze, brass and
EN0H-1806GE23 R0607 • Subject to change
plastic (VA3401A).
V4120
Alwa-KFR
Shutoff valve with backflow preventer
Product specification sheet
Application
The Alwa-KFR is used as shut-off valve with backflow preventer
in potable water installations. The downstream installation is
isolated by shutting off the valve with the handwheel. The integrated backflow preventer with an opening pressure of ≤ 10
mbar (to DN50) stops water from flowing back through the valve.
The valve insert with integrated backflow preventer is avail-able
as spare part and fits into all valve housings with dimensions
according to DVGW so that normal shutoff valves can be
upgraded to shutoff valves with backflow preventer.
Alwa-KFR valves are available with various pipe connections.
Alwa-K-KFR valves are equipped with larger external threads
specially suitable for connections of various plastic pipes.
Alwa-valves are low noise to DVGW and noise protection regulations.
Valves with draining facility allow draining of the system over the
valve.
Alwa-KFR are DVGW-certified under certification-no.
NW-6130AS2114.
Special Features
• All parts with contact to the flow made of corrosionresistant
materials
• Opening pressure ≤ 10 mbar (up to DN 50)
• Permanent easy operation due to isolated spindle
• Maintenance-free spindle sealing with additional back sealing
• Low installation height for sizes DN25 and larger with nonrising spindle
• Cavity-free valve insert
• Draining facility optionally available
Technical Data
Medium Water
Operating
temperature
Operating pressure max. 16 bar (232 psi)
Opening pressure ≤ 10 mbar ( up to DN 50)
kv(cv)-value Alwa-KFR Alwa-F-KFR
max. 90°C (194°F)
≤ 150 mbar (DN 65 - DN 100)
DN15 5.1 5.1
DN20 10.6 10.6
DN25 17.1 17.1
DN32 29.0 29.0
DN40 35.1 35.1
DN50 64.5 64.5
DN65 88.5 132.0
DN80 129.0 193.0
DN100 251.0
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V4120 Alwa-KFR
Dimensions
All dimensions in mm umless otherwise
Fig. 1 Alwa-KFR with internal threads to DIN 3502
Fig. 2 Alwa-KFR with external threads Table 2 Dimensions Alwa-KFR with external threads
DN kvs D1 D2 H L SW t
1
15 5.1 R
20 10.6 R
/2"5090652715.0
3
/4"5095753216.3
25 17.1 R 1" 80 125 90 41 19.1
1
32 29.0 R 1
40 35.1 R 1
/4" 80 130 110 50 21.4
1
/2" 80 140 120 55 21.4
50 64.5 R 2" 80 160 150 70 25.7
Table 1 Dimensions Alwa-KFR with internal threads
DN kvs D1 D2 H L
15 5.1 G 3/4"509070
20 10.6 G 1" 50 95 81
1
25 17.1 G 1
/4" 80 125 98
32 29.0 G 1 1/2" 80 130 117
3
40 35.1 G 1
50 64.5 G 2
/4" 80 140 130
3
/8" 80 160 152
65 88.5 G 3" 120 240 205
1
80 129 G 3
/2" 120 265 234
Fig. 3 Alwa-KFR with internal thread on inlet and external thread
on outlet
Fig. 4 Alwa-K-KFR with external threads for plastic pipe
DN kvs D1 D2 D3 H L SW
15 5.1 R 1/2"50G 3/4" 90 71.5 27
3
20 10.6 R
25 17.1 R 1" 80 G 1
/4" 50 G 1" 95 84.5 32
1
/4" 125 102 41
32 29.0 R 1 1/4"80G 1 1/2" 130 122 50
1
40 35.1 R 1
50 64.5 R 2" 80 G 2
/2"80G 1 3/4" 145 134 55
3
/8" 160 160 70
Table 3 Dimensions Alwa-KFR with internal thread on inlet and
external thread on outlet
DN kvs D1 D2 H L
15 5.1 G 1" 50 90 70
1
20 10.6 G 1
25 17.1 G 1
/4"509581
1
/2" 80 125 98
32 29.0 G 2" 80 130 117
1
40 35.1 G 2
50 64.5 G 2
/4" 80 140 130
3
/4" 80 160 152
Table 4 Dimensions Alwa-K-KFR for plastic pipe
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EN0H-1806GE23 R0607 • Subject to change
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V4120 Alwa-KFR
DN kvs L t A A1 H D2
15 5.1 130 10 95 45 95 50
20 10.6 150 11 105 58 105 50
25 17.1 160 11 115 68 125 80
32 29.0 180 12 140 78 145 80
40 35.1 200 12 150 88 160 80
50 64.5 230 14 165 102 185 80
65 132.0 290 14 185 122 240 120
80 193 310 15 200 138 265 120
100 251 350 18 220 158 410 140
Fig. 5 Alwa-F-KFR with flanges Table 5 Dimensions Alwa-F-KFR with flanges
Order information
Table 6 Ordering information and OS-Nos. (OS = ordering system)
Ordering text OS-No. DN 15 20 25 32 40 50 65 80 100
mm 15 18 22 28 35 42 54 -- -- --
1
R
/2"
Alwa-KFR with internal threads
- with blind plug V4120YY... 015 020 025 032 040 050
Alwa-KFR with external threads
- with blind plug V4120XX... 015 020 025 032 040 050 065 080
Alwa-KFR with internal thread on inlet and external thread on outlet
- with blind plug V4120YX... 015 020 025 032 040 050
- draining valve V4119YX... 015 020
Alwa-K-KFR valve for plastic pipe
- with blind plug V4120KK... 015 020 025 032 040 050
Alwa-F-KFR with flanges
- closed valve body V4120FF... 100
- with blind plug V4120FF... 015 020 025 032 040 050 065 080
3
/4"
3
/4" 1" 11/4" 11/2" 2" 21/2" 3" 4"
Accessories
Connections for external threads
Union nut, sealing and red bronze soldering tailpiece
DN 15, for 15 mm pipe-Ø VA7400A015
DN 15, for 18 mm pipe-Ø VA7400A016
DN 20, for 22 mm pipe-Ø VA7400A020
DN 25, for 28 mm pipe-Ø VA7400A025
DN 32, for 35 mm pipe-Ø VA7400A032
DN 40, for 42 mm pipe-Ø VA7400A040
DN 50, for 54 mm pipe-Ø VA7400A050
DN 65, for 64 mm pipe-Ø VA7400A065
DN 65, for 70 mm pipe-Ø VA7400A070
DN 80, for 76 mm pipe-Ø VA7400A076
DN 80, for 80 mm pipe-Ø VA7400A080
DN 80, for 89 mm pipe-Ø VA7400A089
EN0H-1806GE23 R0607 • Subject to change
Union nut, sealing and externally threaded red bronze tailpiece for external threads
DN 15 VA7401A015
DN 20 VA7401A020
DN 25 VA7401A025
DN 32 VA7401A032
DN 40 VA7401A040
DN 50 VA7401A050
DN 65 VA7401A065
DN 80 VA7401A080
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V4120 Alwa-KFR
Union nut, sealing and internally threades red bronze tailpiece
DN 15 VA7405A015
DN 20 VA7405A020
DN 25 VA7405A055
DN 32 VA7405A032
DN 40 VA7405A040
DN 50 VA7405A050
MAPRESS stainless steel compression-fitting with sealing
DN 15, for 15 mm pipe-∅ VA7403A015
DN 15, for 18 mm pipe-∅ VA7403A018
DN 20, for 22 mm pipe-∅ VA7403A020
DN 25, for 28 mm pipe-∅ VA7403A025
DN 32, for 35 mm pipe-∅ VA7403A032
DN 40, for 42 mm pipe-∅ VA7403A040
DN 50, for 54 mm pipe-∅ VA7403A050
DN 65, for 64 mm pipe-∅ VA7403A065
DN 65, for 76 mm pipe-∅ VA7403A076
DN 80, for 89 mm pipe-∅ VA7403A080
Sanpress red bronze compression-fitting with sealing
DN15, for 15 mm pipe-Ø VA7404A015
DN15, for 18 mm pipe-Ø VA7404A018
DN20, for 22 mm pipe-Ø VA7404A020
DN25, for 28 mm pipe-Ø VA7404A025
DN32, for 35 mm pipe-Ø VA7404A032
DN40, for 42 mm pipe-Ø VA7404A040
DN50, for 54 mm pipe-Ø VA7404A050
Alwa-Sampling valve
Sampling valve with connection
VA4250A008
size G1/4 for building valves up
to DN 25
Sampling valve with connection
VA4250A010
size G3/8 for building valves
from DN 32 to DN 80
Spare parts
Handwheel, red
forDN 15 to DN 20 VS2400B050
for DN 25 to DN 50 VS2400B080
for DN 65 to DN 80 VS2400B120
Valve insert for all valve housing according to DVGW
ffor valve housings DN15 VS1401B015
for valve housings DN 20 VS1401B020
for valve housings DN 25 VS1401B025
for valve housings DN 32 VS1401B032
for valve housings DN 40 VS1401B040
for valve housings DN 50 VS1401B050
for valve housings DN 65 VS1401B065
for valve housings DN 80 VS1401B080
Draining valve
for DN15 to DN25 VA3401A008
for DN32 to DN80 VA3401A010
Blanking plugs (no Fig.)
for DN15 to DN80 VS3401A008
Insulation shells
for valves DN15 VA2510B015
for valves DN20 VA2510B020
for valves DN25 VA2510B025
for valves DN32 VA2510B032
for valves DN40 VA2510B040
for valves DN50 VA2510B050
NOTE:For product information see product data sheet ‘VA2510B Insulation Shells’.
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1806GE23 R0607
Subject to change
© 2007 Honeywell GmbH
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