ERHARD NON SLAM Operating Instructions Manual Download Page 1

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BA43E000

Operating Instructions

ERHARD NON SLAM

Nozzle Check Valve

ERHARD NON SLAM
Nozzle Check Valve

ERHARD NON SLAM
Nozzle Check Valve (option)

You are requested to follow operating
instructions BA43D001.

BA43E000
Juli 2009
Rev.9

ERHARD GmbH & Co. KG

D-89502 Heidenheim

Postfach 1280

Telefon: (07321) 320-0

(07321) 320 491 E-Mail: info

erhard.de

Internet: http://www.erhard.de

Page 1 of 18

Summary of Contents for NON SLAM

Page 1: ...Check Valve ERHARD NON SLAM Nozzle Check Valve option You are requested to follow operating instructions BA43D001 BA43E000 Juli 2009 Rev 9 ERHARD GmbH Co KG x D 89502 Heidenheim x Postfach 1280 Telefo...

Page 2: ...and performance 3 1 1 ERHARD NON SLAM Nozzle Check Valves 5 DN 80 600 PN 10 PN 40 prod No 435 00 1 2 Design Features Technical Data 5 1 2 1 ERHARD NON SLAM Nozzle Check Valves DN 80 300 1 2 2 5 1 2 2...

Page 3: ...ia there is the risk of burns and the valve has to be heat insulated by the user The normal range of flow velocity of the ERHARD NON SLAM Nozzle Check Valve is 0 5 5 m s referred to the nominal size D...

Page 4: ...40 48 56 60 40 24 16 16 16 20 25 Hydr test pressure bar for 10 10 12 17 15 10 The ERHARD NON SLAM Nozzle Check Valves are tested at the manufacturers works for strength and tightness according to DIN...

Page 5: ...0 250 211 26 3 210 200 340 295 266 20 340 295 266 20 360 310 274 22 375 320 31 284 30 3 230 250 400 350 319 22 400 355 319 22 425 370 330 24 5 450 385 345 34 5 3 250 300 455 400 370 24 5 455 410 370 2...

Page 6: ...e 3 Threaded pin 3 stainless steel 4 Bush 2 5 8 9 Valve disc 1 vulcanized NBR or EPDM rubber coating 6 Guiding stem 1 stainless steel 7 Pressure spring 1 Material Standard ductile cast iron 1 1 EN JS1...

Page 7: ...25 31 480 28 310 10 500 670 620 582 31 5 715 650 34 609 31 5 350 15 600 780 725 31 682 30 840 770 37 720 36 5 390 9 4 f 28 16 20 16 20 b D k DN PN10 PN16 D k d4 b d2 d2 d4 L l Attention DN 350 600 the...

Page 8: ...rally and axially moved obturator This obturator with the shape of a valve disc DN 80 300 or a valve ring for DN 350 and larger is guided by means of one four a guiding stem s in an internal body The...

Page 9: ...70 0 100 0 130 0 160 0 260 0 420 0 16 14 0 19 0 27 0 32 5 50 0 70 0 100 0 135 0 165 0 275 0 480 0 25 14 0 19 0 27 0 40 0 56 5 81 5 113 0 40 14 0 19 0 27 0 40 0 67 5 101 0 145 5 Weight approx in kg The...

Page 10: ...s of plastic material for protecting the coating of the flange holes 1 5 2 Storage The ERHARD NON SLAM Nozzle Check Valves are to be secured by means of wedges or belts fig 1 5 against rolling off or...

Page 11: ...ed accordingly like all the other springs A special spring is used for installation in vertical pipeline with downward flow In this case the internal body has an additional bore ERHARD NON SLAM Nozzle...

Page 12: ...enance work check tightness of the flange connections and screwed connections if any or replace the seals Attention For DN 300 600 the guiding stems exceed the face to face dimension of the valve in f...

Page 13: ...directly on the delivery side of the pump irregular flow and vibrations of the ERHARD Check Valve might have negative effects releasing screwed connections damaging the seals spring breaking and incre...

Page 14: ...rk any connection has to be checked for tightness and close fit Danger DANGER In case of penetration of dangerous liquids substances gases and steams immediately the plant has to be shut down the resp...

Page 15: ...number of the valve The serial number is specified on the name plate fig 1 8 All data required for selecting the appropriate spare parts are assigned to the serial number For 2 and 5 years operation w...

Page 16: ...with internal hexagon 3 mm 1 and for size DN 600 with 4 threaded pins M8 with internal hexagon 4 mm These pins must be screwed off Fig 2 3 1 DN 80 300 For removing the internal body 2 from the body 3...

Page 17: ...ng spring s and guiding stem s are pushed into the internal body The valve disc ring can be fixed in its rear limit position by means of bolt s including washer s 5 screwed into the guiding stem s The...

Page 18: ...eign bodies between valve disc ring and internal body Manually remove foreign body dismantling acc to 2 3 Foreign bodies jammed in the seating zone at v referred to DN 2 m s Increase flow velocity and...

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ERHARD NON SLAM, Operating Instructions Manual

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