TARV Double Ball/Orifice Air Release Valve and Vacuum Valve for Clean Water
Place of Origin: | CHINA |
Brand Name: | WALTER / OEM Brand |
Model Number: | TARV |
Certification: | WRAS |
Email : [email protected]
Description
Minimum Order Quantity: | 10 PCS |
Price: | Negotiable |
Packaging Details: | Plywood Box |
Delivery Time: | 3 Weeks |
Payment Terms: | T/T, LC |
Supply Ability: | Base on Order Quantity |
WALTER TARV Double Ball Air Release Valve is a special valve used to prevent negative pressure in the pipe caused by the transient pressure reduction wave. It is usually installed at a high point where the hydrodynamic pressure of the pipeline is low during normal operation, and the liquid column separation may occur during the transient flow process. Air is sucked in when the pressure in the pipe is lower than atmospheric pressure, and air is discharged when the pressure in the pipe rises above atmospheric pressure. During the exhaust process, the valve can automatically close when the pipe is filled with liquid, and the liquid is not allowed to leak into the atmosphere.
Feature:
1.Float parts made of polyethylene, increase the corrosion resistance, hence increases service life.
2.Discharge air more flexible
3.Preventing of the water hammer
4.Discharge the air slowly
5.Safer self-protection
6.Small volume, light weight, small exhaust flow
7.Long service life
Technical Data
1.Design: BS EN1074-4
2.Flange drilling to DIN 2533, BS4504, EN1092-2 PN10/16
3.Size: DN50 -300
4.Working Temp. : 0 ℃ ~ + 80 ℃
5.Inspection & testing: EN 12266-1:2012
Quick Detail
1,Double Ball Air Release Valve, Air Valve, Air Relief Valve
2,Air Release Valve is one type of air release valves (commonly referred to as, small orifice valves) are fitted at the highest point in a system to continuously release air during operation, and thus protecting against unwanted surges and also maintain system efficiency.
3,DN40 -200, Flange End PN10/16.
Specifications
Material
No. | Part Name | Material |
1 | Body | GGG50 |
2 | Float Guide | ABS |
3 | Float Ball | ABS |
4 | Support | ABS |
5 | Seal Ring | EPDM |
6 | Seat Support | ABS |
7 | Cover | GGG50 |
8 | Washer | SS304 |
9 | Nut | SS304 |
10 | Hexagon | SS304 |
11 | Cowl | GGG50 |
12 | O-ring | NBR |
13 | Side Body | GGG50 |
14 | Cap | BRASS |
15 | O-ring | NBR |
16 | Bracket | BRASS |
17 | Seat | EPDM |
18 | Hinge Pin | SS304 |
19 | Side Float Ball | ABS |
20 | Bolt | SS304 |
21 | Washer | SS304 |
Dimension
DN | A | B | C | L | ΦD | ΦK | N-Φd |
50 | 270 | 166 | 86 | 125 | 165 | 125 | 4-19 |
65 | 270 | 166 | 86 | 125 | 185 | 145 | 4-19 |
80 | 350 | 240 | 112 | 125 | 200 | 160 | 8-19 |
100 | 420 | 265 | 128 | 125 | 220 | 180 | 8-19 |
125 | 420 | 265 | 128 | 125 | 250 | 210 | 8-19 |
150 | 420 | 265 | 128 | 125 | 285 | 240 | 8-23 |
200 | 420 | 265 | 128 | 125 | 340 | 295 | 8-23 / 12-23 |
250 | 420 | 265 | 128 | 125 | 405 | 350 / 355 | 12-23 / 12-28 |
300 | 420 | 265 | 128 | 125 | 460 | 400 / 410 | 12-23 / 12-28 |