AUTOMATIC AIR VALVES For potable water
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1 AUTOMATIC AIR VALVES For potable water Page N Air release valve Page N Air release valve avent Page N Air release valve DN 0 / DN 0, DN 150 / DN 00 Page N /1 Page N5 Combined air release valve Page N 5/1 Page N Air release valve DN 1" und DN ", PN, PN 1 Page N /1 PN 5 Page N /1 Dynamic PN PN 1 PN 5 PN 0 Page N /1 Edition N 1/1
2 Accessories Tools Flushing stand pipe Page N 5/1 Surface box Page M / Spare parts Valve 1" Seite N / Valve key 1" Page Q / Dimensioning (recommendation) Pipe Valve DN 0 DN 1" DN 0-50 DN " (DN 50) DN DN 0 DN DN 0 DN DN 150 DN 00 DN 00 Technical information Tightening torques for flange assembly Page R /1 Application examples N 1/ Edition
3 PN PN 1 Design features Automatic, dynamic air release valve PE shield for UV protection The internal thread inlet is reinforced with a stainless steel ring Connection variants: Internal thread or flange Insect protective grid (" valve) Installation: upright, preferably at the highest point in the pipeline together with isolating valves Air valve for releasing air only: on request (minimum pressure of 0, bar needed) No. 97 DN 1" No. 97 DN " Material Technical features DN 1" Max. air release capacity: 7, m /h Test pressure: Body bar Working pressure: 0,1 - bar 0, - 1 bar Body made of POM Orifice and valve plug made of brass Float made of POM Seal made of UV-shield made of PE No. 97 DN " Order No. Version DN 97 Standard 1" 97 Standard " With flange connection 97 DN 50 or DN 0 " (ductile iron) Working pressure bar PN 0,1 - PN PN 0, - PN 1 PN 0,1 - PN PN 1 - PN 1 PN 0,1 - PN PN 1 - PN 1 DN " - double acting Max. air release capacity: 19 m /h Test pressure: Body bar Working pressure: 0,1 - bar 1-1 bar Body and elbow made of POM Valve seat made of brass Float made of POM Seal made of UV-shield made of PE Insect protective grid made of stainless steel Automatic air valves are to be maintained according to the usage conditions N /1 Edition.017
4 PN PN 1 Working MOP Size of the DN pressure Ø D Ø D1 (PN) opening bar No. 97 DN 1" Ø D R ¼" 0,1-1" 1,77 mm ,90 1 0, - 1 Please specify working pressure when ordering Air release Entlüftung rate backup Staudruck pressure im Ventil p [bar] Valve (= wearing part) No: QA Q01 PN 1 No: QA000100Q01 PN Replaceable on the spot in depressurised status Demount safeguard ring Remove cap Loosen locking screw Valve with valve key unscrew No Q [m /h] R 1" EN Ø D Unterdruck negativ pressure im Ventil Belüftung Air inflow rate 0. p [bar] MOP Working DN pressure Size of the Ø A Ø A1 1 (PN) opening bar No. 97 DN " 0,1 -,90 " 900/ mm ,0 Please specify working pressure when ordering R 1¼" p [bar] Air release Entlüftung rate backup Staudruck pressure im Ventil Q [m /h] negativ Unterdruck pressure im Ventil p [bar] Belüftung Air inflow rate R " EN -1 Ø A Ø A1 N / Edition
5 avent PN 5 Design features No. 959 igh performance air release valve with new nozzle mechanism for the optimal absorption of high pressures Low wear and tear due to optimum geometry Easy maintenance igh-quality materials UV resistance Air release only on request Connecting variants: Flange DN 50, DN 0, internal thread " With insect protective grid d Material Technical features Size of the opening: 1500 mm /,15 mm Max. air release capacity: 50 m /h Working pressure: 0, - 5 bar Body made of stainless steel Float made of foamed PP Seal made of Outlet elbow made of PE Flange acc. EN 9 Ø D Connection Ø D IG " 0 10,00 Flange DN 50* ,50 Flange DN 0* ,50 *on request N /1 Edition.017
6 avent PN Air release capacity when filling the pipeline 00 Air release capacity Q (m /h) ,1 0, 0, 0, 0,5 0, 0,7 0, 0,9 1,1 Differential pressure (bar) Working air release 1 Air release capacity Q (m /h) , 0, 0, Differential pressure (bar) Aeration the pipeline 0-0,0-0,0-0,09-0,1-0,1-0, -0, -0,5-0, -0, Aeration capacity (m /h) Negative pressure (bar) N / Edition 0.01
7 PN PN 1 Design features Automatic air release valve All mechanical parts made of corrosion resistant materials No. 95 DN 0 / DN 0 Material technical features Body and bonnet made of ductile cast iron, epoxy powder coated Seat made of stainless steel / elastomer Float: DN 0-0 polycarbonate DN passivated stainless steel Double nipple made of POM / stainless steel Bolts and nuts made of stainless steel Dimensions DN 0 DN 0 DN 150 DN 00* DN 150 / DN 00 Test pressure (body) bar Working pressure PN 1 (standard) 0, - 1 bar Travelling valve Working pressure PN 0, - bar Max. air release capacity Size of the opening 105 m /h 50 m /h 7500 m /h 1/1,77 mm 0/1,77 mm 1770/1,77 mm Basic valve PE pipe connection d d 75 Flange drilled acc. EN 9- PN ; *DN 00 PN 1 EN 9- please specify on order Order No. Version Working pressure bar DN 0 DN 0 DN 150 DN Double orifice (with travelling valve) Double orifice, (with travelling valve) with PE pipe & insect protective grid PN (0, - bar) PN 1 (0, - 1 bar) PN (0, - bar) PN 1 (0, - 1 bar) 97 Single orifice (without travelling valve) PN 1 (0, - 1 bar) Single orifice (without travelling valve) 9 PN 1 (0, - 1 bar) with PE pipe & insect protective grid N /1 Edition
8 PN PN 1 A DN 0 / DN 0 DN 150 / DN 00 A DN A d 1 C , Parts Body and bonnet Seat Grid Bolt Washer Nut Cap Material Ductile cast iron, epoxy powder coated / Steel, epoxy powder coated Automatic air valve 1" Divers (see page N /1) Nipple POM (DN 0-0) / NIRO (DN ) O-ring exagonal bolt Washer exagonal nut Float O-ring Clamp ring Pipe tail (on request) DN 0-0 Polycarbonat DN Passivated stainless steel POM PE Insect protective grid (on request) 15 1 DN DN A C d , , , ,0 Air release rate backup pressure backup pressure Q (m /h) Q (m /h) Air inflow rate N / Edition.017
9 COMBINED AIR RELEASE VALVES No. 9 No. 9 Design features This arrangement eliminates expensive valve chambers The stand pipe protects the automatic air valve Air valve for releasing air only: (with air inflow stop) on request (see over page illu. ) An automatic shut-off valve enables the equipment to be easily removed for inspection and reinstalled under pressure The materials used for the air release valve guarantee absolute corrosion resistance Excess water is drained away through an DN ½" ISO-pipe-fitting For below-ground installation a surface box with minimum opening of 00 mm diameter is required. Gravel backfilling should be used to prevent rain water from accumulating in the surface box (see Illu. page N 5/) The air release valve can be shortened by 0 mm by cutting the standpipe 5 and extension pipe at the red marks Valve only for air release: on request (minimum pressure of 0, bar needed) Material Technical features Order No. Standpipe made of stainless steel Air release valve made of POM and brass Working pressure bar Max. air release capacity:, m/min 50 Inlet flange: DN 50 or DN 0 sized and drilled according to EN 9- PN 1 9 PN 1 PN 1 0 Suitable accessories 50 Surface box No R 1½" Flushing stand pipe including shut-off valve; Instead of the air valve assembly a stand pipe can be supplied for water main flushing and for general water discharge PN 0,1 PN 0 *L = 0 reducible Order No. 9 L 755, ,0 105, ,50 Installation depth DN Above ground Below-ground (Illu.1) (Illu.) 0,75 m 1,5 m 0,75 m 1,5 m 0,75 m 1,5 m 0,75 m 1,5 m 1,5 m 1,5 m 1,5 m 1,5 m Minimum length = 50 Maximum length = 500 L* ,0,5,5 7,0 0,0 1,0,0 5,5 0,0,0,0,0 0,0,0 PN 5 on request Application example L = Total length of the combined air release valve Edition N 5/1
10 COMBINED AIR RELEASE VALVES Illu. 1 Ø 0 15 Illu. Road level Ø 00 Surface box Order No ca Mark for shortening 5 Gravel backfill Red mark for shortening 1.1 Inlet flange Parts Material Ductile iron 1. Drain-off fitting Ductile iron 1. Seal Illu Foot valve flange Foot valve Brass POM L Spring case Spring exagon bolt M POM. Air valve see page N /1 Seat Brass/.1 O-ring.1 Insect protective grid.15 Double nipple Brass.1 Non return valve Brass Reducing socket Brass Pipe DN 50 (DN 0) Ø Coupling exagon bolt Stand pipe Lock ring exagon bolt M 1 x 55 exagon nut Ductile iron Ductile iron Seal Blind cover 1 Spindle support 1 Operating bolt 1 ood DPE 15 exagon bolt N 5/ Edition
11 Dynamic PN PN 1 PN 5 PN 0 Design features Automatic -way air release valve with cylindrical floats Ventilation outlet in nominal size (large opening cross-section according to the flange size) Flange pursuant to EN 9- (DN 50 can also be shipped with threaded connection ") Efficient, high performance ventilation protects pipeline from vacuum related damages igh velocity air discharge prevents premature closure, thus safeguarding optimum ventilation during filling process of pipe lines or containers -level ventilation system provides effective protection against pressure shocks during high ventilation speeds through a small opening Continuously reliable ventilation of air inlets under normal operating conditions Compact construction, low volume and weight Robust and reliable technology Material Technical features Body made of ductile iron, epoxy powder coated inside and outside (see page ) Sealing rings made of elastomer All other metallic parts made of stainless steel Float material made of PE Medium: water No. 9K Order No. MOP (PN) 1 9K 5 0 Other dimensions or pressure rating on request Application example Dimension/DN Functional principle Ventilation of large quantities of air: During filling, the line will be ventilated via the large cross-section Ventilation at high air velocity through small opening: Prevention of pressure shocks or premature closure Closure: After ventilation the valve closes automatically Ventilation of small quantities of air: During operation of a line, ventilation is carried out via the small cross-section Ventilation: During drainage of a line, ventilation is carried out via the large cross-section. N /1 Edition
12 Dynamic PN PN 1 PN 5 PN 0 No. 9K Ø B Parts Material 1 Body Ductile iron Bonnet Float guide Cover Float Float Seat seal Seat Float Steel (stainless steel optional) PE PE PE O-ring Plug Steel C Ø d Ø K Ø D DN MOP (PN) Ø D Ø K C Bolts Quantity Ød Ø B / , Bolts DN MOP (PN) Ø D Ø K C Ø B Quantity Ød Bolts DN MOP (PN) Ø D Ø K C Ø B Quantity Ød N / Edition
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