
Stainless Steel Pilot Blue Colored Nylon Reinforcement Diaphragm Ductile Iron Flow Control valve
The A400 flow control valve are piloted hydraulic valves activated
by line pressure. Normally the A400 is partly open to allow a
preset constant flow rate. The flow rate through the A400 is
determined indirectly using an orifice plate. The head loss across
the orifice is proportional to the actual flow rate. On
rising head loss, the A400 is automatically piloted to close.
On the other case, the valve opens. Thus the flow rate is
maintained constant, regardless of line pressure fluctuations or
the downstream demand
Features:
• Accurate, stable control
• Simple and reliable design
• Low losses when the demand is lower than the set flow
Service Fields:
For water system, irrigation system.
Technical Data:
Size | DN50-DN800 |
Working Temperature | - 10C- 80C |
Flange | AISI B16.1 Or PN16 |
Flow Media | Clean Water |
Consult Factory for other applications
IP68 for water resistance
Comply with BS EN 1074-5, ISO 5208, BS EN 12266-1, BS EN 558-1
Materials And Dimension
DN50-DN350
No. | Description | Material | Standard |
1 | Body | Ductile Iron | GJS500-7 |
2 | Seat | Stainless Steel | AISI304/316 |
3 | O-ring | Rubber | NBR |
4 | O-ring | Rubber | NBR |
5 | Bolt | Stainless Steel | A2/A4 |
6 | Washer | Stainless Steel | A2/A4 |
7 | Bonnet | Ductile Iron | GJS500-7 |
8 | Bush | Bronze | C61900 |
9 | Spring | Stainless Steel | AISI304/316 |
10 | Caulking Nut | Stainless Steel | A4 |
11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon Fabric |
12 | Fixing holder | Ductile Iron | GJS500-7 |
13 | Dics Holder | Ductile Iron | GJS500-7 |
14 | Seal | Rubber | EPDM |
15 | Seat Retainer | Stainless Steel | AISI304/316 |
16 | Stem | Stainless Steel | AISI304/316 |
17 | Plug | Stainless Steel | AISI304/316 |
18 | Screw | Stainless Steel | A2/A4 |
19 | Plug | Stainless Steel | A2/A4 |
20 | Washer | Stainless Steel | A2/A4 |
DN400-DN800
No. | Description | Material | Standard |
1 | Body | Ductile Iron | GJS500-7 |
2 | Seat | Stainless Steel | AISI304/316 |
3 | Screw | Stainless Steel | A2/A4 |
4 | Screw | Stainless Steel | A2/A4 |
5 | Screw | Stainless Steel | A2/A4 |
6 | Spring | Stainless Steel | AISI304/316 |
7 | Bonnet | Ductile Iron | GJS500-7 |
8 | Bush | Bronze | C61900 |
9 | O-ring | Rubber | NBR |
10 | Fix Washer | Bronze | C61900 |
11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon Fabric |
12 | Eye Bolts | Carbon Steel | 1040 |
13 | Fixing holder | Ductile Iron | GJS500-7 |
14 | Dics Holder | Ductile Iron | GJS500-7 |
15 | Seal | Rubber | EPDM |
16 | Seal Retainer | Ductile Iron | GJS500-7 |
17 | Stem | Stainless Steel | AISI304/316 |
18 | Plug | Stainless Steel | AISI304/316 |
19 | O-ring | Rubber | NBR |
20 | Cap | Ductile Iron | GJS500-7 |
21 | Plug | Stainless Steel | AISI304/316 |
22 | Screw | Stainless Steel | A2/A4 |
23 | O-ring | Rubber | NBR |
24 | Screw | Stainless Steel | A2/A4 |
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