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P. 1123

Throttle valve
                                                                                                    Throttle valves

            Throttle valve
            Screw-in cartridge                            M18x1,5
            •  Q N max  =  30 l/min                        ISO 7789
            •  Q max   =  40 l/min
            •  p    =  350 bar
               max


            DESCRIPTION                        FUNCTION                           APPLICATION
            Manually adjustable, M18x1,5 screw-in cart-  A fine tread on the adjustable throttle reveals   Throttle valves can be used anywhere where
            ridge throttle valve in accordance with cavity   an annular gap. The adjusted throttle cross-  volume flows can be infinitely controlled in both
            ISO 7789. The cartridge body made of steel is   section produces a pressure drop which de-  directions without taking pressure fluctuations
            galvanized and therefore rust-protected.  termines the volume flow. The volume flow is   into account. Stepped tools are available for
                                               zero when the throttle is screwed in (the metal   making the receptacle bores in steel and alu-
                                               sealing edge seals completely). The valve flow   minium (hire or purchase). Please refer to the
                                               is bidirectional.                  data sheets in register 2.13.








                                               TYPE CODE
                                                                                         DN   I   PM18  -   30  #

                                               Throttle valve
                                               Type of adjustment
                                               Screw-in cartridge M18x1,5
                                               Nominal volume flow rate Q N      30 l/min
                                               Design-Index (Subject to change)









            GENERAL SPECIFICATIONS                               HYDRAULIC SPECIFICATIONS
            Description           Throttle valve                 Fluid               Mineral oil, other fluid on request
            Construction          Screw-in cartridge for cavity   Contamination efficiency   ISO 4406:1999,
                                  acc. to ISO 7789                                   class 20/18/14…21/19/15
            Mounting              Screw-in thread M18x1,5                            Required filtration grade (ß 10…25 ≥ 75)
            Ambient temperature   -20…+50 °C                                         (refer to data sheet 1.0-50/2)
            Mounting position     any                            Viscosity range     12mm /s…320mm /s
                                                                                                  2
                                                                                          2
            Fastening torque      M  = 30 Nm                     Fluid temperature   -20…+70 °C
                                   D
            Weight                m = 0,11 kg                    Peak pressure       p max  = 350 bar
            Volume flow direction   1 ↔ 2                        Nominal volume flow rates  Q   = 30 l/min
                                                                                       N
                                                                                     Q  at 10 bar valve pressure loss
                                                                                      N
                                                                 Max. volume flow    Q max = 40 l/min
                                                                 Leakage volume flow   Almost leak free with closed restrictor

            SYMBOL                                               MECHANICAL ACTUATION
                                                                 Screw adjustment with fork wrench and Allen key
                                                                 Control storke S          =  4,5 mm
               1         2                                       Control angle α    b b        =  1620° / 4,5 turns







              s 4
            Wandfluh AG    Ø 17  Tel.  +41 33 672 72 72   E-mail:  sales@wandfluh.com   Illustrations not obligatory   Data sheet no.
            Postfach            Fax  +41 33 672 72 12   Internet:  www.wandfluh.com   Data subject to change   2.4-512E 1/2
            CH-3714 Frutigen                                                                             Edition 11 26
              s 17
                                                                                                           Page 1123
         (max. 47 .5)  s 19



         43
     72
              M18 x 1,5
         29



                          Ø 22.6
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