
Triple function, large air exhausting, small air venting, vacuum
breaker, Anti-shock, Combination air release valve
. Advanced design with simple mechanism, strong fl oat to prevent
cracking during sudden water hammer& quick closure.
. Aerokinetic mechanism to resist blow shut under higher air
velocity even up to sonic velocity of air.
. No arms or levers to prevent vibrating, bending, direct closure
of the fl oat.
. Smooth cage outside of the fl oat, keep float moving in specifi
ed guide rail.
. Bottom rubber buffer for collision prevention, and drain easy
with proper holes around the cage during vacuum.
. Outside screen will be an option for safety and prevent insects
or birds in.
. Fully fusion epoxy coated inside and outside of valve body for
long term services.
. Manufacturing standard meets BS EN1074-4, AWWA C512
. Flange drilling and dimension meets BS EN 1092 and BS EN 558 and
ANSI flange.
Service Fields:
For water system, fire fighting, irrigation system.
Technical Data:
Size range:DN 25-300MM
Pressure ratings:1.0Mpa, 1.6Mpa(Thread)
1.0Mpa,1.6Mp,2.5 Mpa(Flange)
Working temperature: -10°-80°C.
Flow media: clean water
Size Selection Table:
Water flow rate range Max CMH | 760 | 1360 | 4160 | 8500 | 19100 | 33400 | 76300 |
Main pipeline size mm | 80-300 | 200-400 | 400-700 | 750-1000 | 1050-1500 | 1500-2000 | 2100-3000 |
Inlet size of KARX mm | 25 | 50 | 80 | 100 | 150 | 200 | 300 |
bore of outlet mm | 50 | 75 | 95 | 130 | 170 | 230 | 330 |
small orifice size mm | 1.6 | 1.6 | 2 | 2.5 | 3 | 4 | 4 |
Material List:
KARS ( Thread Type DN25-DN50)
Part List | |||
No. | Part Name | Material | Standard |
1 | Body | Ductile Iron | EN GJS500-7 |
2 | Float | Stainless Steel | ANSI 304 |
3 | Sealing arc | Stainless Steel | ANSI 304 |
4 | Hex Bolt | Carbon steel/ Stainless Steel | Zinc Coated/ ANSI 304 |
5 | Cover | Carbon steel | Epoxy Coated |
6 | Screen | Stainless Steel | ANSI 304 |
7 | Buffer | Rubber | NBR/EPDM |
8 | Guide Barrel | Stainless Steel | ANSI 304 |
9 | Nozzle seat | Rubber | NBR/EPDM |
10 | Seat | Rubber | NBR/EPDM |
11 | O-ring | Rubber | NBR/EPDM |
12 | Bonnet | Ductile Iron | EN GJS500-7 |
13 | Pillar | Aluminium | Commercial |
14 | Hex BOLT | Carbon steel/ Stainless Steel | Zinc Coated/ ANSI 304 |
15 | Washer | Stainless Steel | ANSI 304 |
16 | Small Nozzle | Stainless Steel | ANSI 304 |
KARX ( Flange Type DN50-DN300)
Part List | |||
No. | Part Name | Material | Standard |
1 | Body | Ductile Iron | EN GJS500-7 |
2 | Float | Stainless Steel | ANSI 304 |
3 | Sealing arc | Stainless Steel | ANSI 304 |
4 | In Hex Bolt | Carbon steel/ Stainless Steel | G.I/ANSI 304 |
5 | Bonnet | Ductile Iron | EN GJS500-7 |
6 | Cover | Carbon steel | ANSI 304 |
7 | Screen | Stainless Steel | ANSI 304 |
8 | Hex BOLT | Carbon steel/ Stainless Steel | G.I/ANSI 304 |
9 | Washer | Stainless Steel | ANSI 304 |
10 | Pillar | Aluminium | Commercial |
11 | O-ring | Rubber | NBR/EPDM |
12 | Seat | Rubber | NBR/EPDM |
13 | Nozzel Seat | Rubber | NBR/EPDM |
14 | Guide Barrel | Stainless Steel | ANSI 304 |
15 | Buffer | Rubber | NBR/EPDM |
16 | Small Nozzle | Stainless Steel | ANSI 304 |
Dimension:
KARS ( Thread Type DN25-DN50)
Unit:MM | ||||
DN | Model No. | φA | C | H |
25 | KARS-0025-BP | G1" | 20 | 243 |
32 | KARS-0032-BP | G1 1/4" | 20 | 243 |
40 | KARS-0040-BP | G1 1/2" | 20 | 243 |
50 | KARS-0050-BP | G2" | 20 | 243 |
Remarks:BP-British Pipe Thread |
KARX ( Flange Type DN50-DN300)
Dimension Unit:MM | ||||||||||||||
No. | Model No. | φB | Φd | ΦK | H | NΦd | ||||||||
PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | |||
50 | KARX-0050 | 99 | 99 | 99 | 165 | 165 | 165 | 125 | 125 | 125 | 280 | 4Φ19 | 4Φ19 | 4Φ19 |
80 | KARX-0080 | 132 | 132 | 132 | 200 | 200 | 200 | 160 | 160 | 160 | 362 | 8Φ19 | 8Φ19 | 8Φ19 |
100 | KARX-0100 | 156 | 156 | 156 | 220 | 220 | 235 | 180 | 180 | 190 | 395 | 8Φ19 | 8Φ19 | 8Φ23 |
150 | KARX-0150 | 211 | 211 | 211 | 285 | 285 | 300 | 240 | 240 | 250 | 485 | 8Φ23 | 8Φ23 | 8Φ28 |
200 | KARX-0200 | 266 | 266 | 274 | 340 | 340 | 360 | 295 | 295 | 310 | 582 | 8Φ23 | 12Φ23 | 12Φ28 |
300 | KARX-0300 | 370 | 370 | 389 | 445 | 460 | 485 | 400 | 410 | 430 | 750 | 12Φ23 | 12Φ28 | 16Φ31 |
Air Flow Characteristic
Large Air Exhausting
Air Intake
Small air venting
Suzhou Alpine Flow Control Co., Ltd
Alpine Flow Control (SuZhou) Co.,Ltd with major focus in the water valve design and manufacturing. The Management staff have over 30 years experience in the water valve design and manufacturing, combined with the high-tech electronics manufacturing experience of multi-national listed companies. This unique combination of traditional and high-tech industry management experience and skills have given us an advantage over the traditional valve manufacturer. More than 40% of our staff are technical staff with knowledge and experience in valve and mechanical design/manufacturing...
Proven and supported by on-going quality and reliability test. AFC
has built it’s own in house reliability test laboratory to ensure
that our products not only meet the international quality and
reliability test specification such as the EN-1074-1/2 T-key and
R-key test, but also comply to various international valves
standards and specifications.
We already achieved WRAS certificate in 2011, and obtained FM
approval in early of 2012,
and UL for gate valve. Today, we have got many international famous
certificate for drinking water such as WRAS, NSF, AS, CE on certain
products, and our product range has expended to double eccentric
butterfly valve, rubber disc check valve ,non-slam check valve,
both clean water & sewage water air valve, hydraulic control
valve and penstock and we always focus on water system valves.
In 2018 year, our big plan is developing pressure management valves which has been proved to be a very helpful tool and economic way to save the leakage rate with limited investment and get a fast return in couple months and power savings
In addition, we have a special project team to focus on custom
design and special requirement
Our Mission :
Be the market leader in Water Valve Flow Control
Company culture :
Technology through Innovation
Quality product and service through Quality people
Business growth through Cohesive partnership