Flow limiter SP/SMB 8... DSK US (09.04)

Transcription

1 DSK US (09.04) for mounting plates General information s are used in large oil circulation lubrication systems. The task of a flow limiter is to divide up the volumetric flow of the main line into parallel individual volumetric flow quantities and to limit these according to requirement, or to keep them constant. The volumetric flow generated is independent of the system pressure and virtually independent of viscosity. The flow limiter was developed specially for mounting plates. The advantage of this design is its simple and compact construction. Using interchangeable plug-in nozzles, the volumetric flow of the flow limiter can be set stepwise from 0.09 to 8.18 l/min. This also makes subsequent adjustments possible (necessary when the unit is modified, e.g.). Tedious resetting and measuring are unnecessary. SP/SMB 8... The volumetric flow can be monitored simply and safely with a signal transmitter or proximity switch (which is also subsequently screwed in). A fault signal occurs when the volumetric flow drops to approx. % of the nominal volumetric flow. Mode of operation Functional diagram With the flow limiter, the total volumetric flow Q is divided up by the parallel layout of the on the mounting plate into individual flow lines Q i. The system pressure, being the input pressure p 1 is thus maintained for all flow limiters. Every has a control plunger with a plug-in nozzle as a differential pressure regulator. The differential pressure (p 1 -p 2 ) at the interchangeable plug-in nozzle D 1 in the control plunger is based on a balance of forces p 1 A = p 2 A + F resp.. p1/2 = p 1 - p 2 = F/A = constant. It follows that: The difference in pressure in front of and behind the variable jet D 2 is maintained constant by a balance in pressure. The condition for this function is that the system pressure p 1 is always greater than the sum of the pressure drops in and after each flow limiter. p 1 > p1/2 + p 3 For this reason the pump volume flow should exceed all individual flow quantities by approx. 15 %, i.e., Q = 1.15 ( Q i ). p 1 pressure upstream of the plug-in nozzle D 1 p 2 pressure downstream of the plug-in nozzle D 1 p 3 pressure downstream of D 2 D 1 D 2 RK F A plug-in nozzle throttle control plunger spring pressure cross-section of the control plunger Fig. 1 Functional diagram SP/SMB 8.

2 DSK US (09.04) 2 Design Switchposition at a clogged Nossle E2 E3 Working position / correct flow +24V,DC 1 ~ Casing 2 Bush Switch position at a lack of pressure / Flow 3 Spring-loaded control plunger 4 Interchangeable plug-in nozzle 5 Pressure spring 6 Signal transmitter (optional) 7 Switching piston of the signal transmitter (with a built-in signal transmitter) 8 Mounting plate Fig. 2 Design of flow limiter SP/SMB 8/2E2... for mounting plates 3 green green Note! Sensor E3 is no longer available. Please note the modified wiring diagram for successor model E4. 2 Switchposition at a clogged Nossle E4 Working position / correct flow green yellow 1 Casing 2 Bush Switch position at a lack of pressure / Flow 3 Spring-loaded control plunger 4 Interchangeable plug-in nozzle 5 Pressure spring 6 Signal transmitter (optional) 7 Switching piston of the signal transmitter (with a built-in signal transmitter) 8 Mounting plate Fig. 3 Design of flow limiter SP/SMB 8/2E4... for mounting plates 8,5 8, Outlet M6 32 Inlet E2, E3 E Expanded length Expanded length Fig. 4 Design of flow limiter SP/SMB 8... with signal transmitter for mounting plates Outlet M6 Inlet LED PNP 16 Expanded length 1 + Load 2 Fig.5 Design of flow limiter SP/SMB 8... with proximity switch for mounting plates - 3

3 DSK US (09.04) 3 Technical Data flow limiter General information Type... 2-way flow limiter valve Application... for mounting plates Equipment... with fastening screws M 6 45 and sealing rings Fitting position... random (by mountig with filter mounted filter vertically downwards) Ambient and lubricant temperature range... 0 to C Material... AlCuPb F38, neutrally anodized Weight kg Hydraulics Nominal volumetric flow (see also related tables, Page 4 to 5) stepwise... from 0.09 to 8.18 l/min Working pressure p 1 without adaptations... 5 to 200 bar Working pressure p 1 with signal transmitter...5 to 85 bar Working pressure p 1 with proximity switch... 5 to 200 bar Required differencial pressure between input pressure p1 and output pressure p bar Lubricant... mineral oils and synthetic oils Operating viscosity to 600 mm²/s Signal transmitter Type... magnetic switch Switching element/contact type... magnetic/reed contact Ambient and lubricant temperature range - E to C - E to + 90 C Material - Casing... AlCuMgPb F38, neutrally anodized - Connector... polyamide Weight... 0,2 kg Switching voltage V to 230 V AC/DC Switched current A [24 V] or 0.17 A [230 V] 1 ) Switching capacity... max. 40 W Function... NC (Go position normaly closed) Type of protection... IP 65 2 ) Connection - E2... plug, 230 V - E4... plug, M 12x1, 4pol, 24 V DC with a green and yellow LED 3 ) Connection lines... screwed Cross section for connection - E2... max. 2 1 mm² - E4... max. 3 1 mm² Cable diameter... max. 10 mm Proximity switch Type... inductiv PNP (normaly closed) Monitoring... yellow LED, lights in Go state Operating voltage to 36 V DC current raiting ma Operating temperature C bis 80 C Switching distance mm Short circuit protection... included Max. pressure bar Typ of enclosure (DIN ) IP 67 Key to order codes - for mounting plates - (see also Plug-in nozzle tables pages 4 to 5) Order description Part number SP/SMB 8/2 / _ Nozzle type /0 = without signal transmitter E2 = with signal transmitter and connector up to 230 V AC, without LED E4 = with signal transmitter and connector up to 24 V DC, with green and yellow LED, Connection coupler socket M12x1) E6 = with Proximity switch Nozzle type 0 = without signal transmitter 2 = with signal transmitter and connector up to 230 V AC, without LED 7 = with signal transmitter and connector up to 24 V DC, with two LED) 6 = with Proximity switch (12 bis 36 V DC) 4 ) 1) Sufficient spark protection required. 2) Previous model only in combination with transistor relay. 3) Green and yellow LEDs light when Go signal received, when yellow LED goes out => fault signal. 4) Socket optional, for order see accessories page 8.

4 DSK US (09.04) 4 Table Plug-in nozzles Nominal volumetric Plug-in nozzle D 1 flow 1 ) Order description Part Number Complete spare part [l/min] [ mm] [Type] Part number SP/SMB 8/ _ / _ _ /045 - _ _ /050 - _ _ /055 - _ _ /060 - _ _ /065 - _ _ /0 - _ _ /075 - _ _ /080 - _ _ /085 - _ _ /090 - _ _ /095 - _ _ /100 - _ _ /105 - _ _ /110 - _ _ /115 - _ _ /120 - _ _ /125 - _ _ /130 - _ _ /135 - _ _ /140 - _ _ /145 - _ _ /150 - _ _ /155 - _ _ /160 - _ _ /165 - _ _ /1 - _ _ /175 - _ _ /180 - _ _ /185 - _ _ /190 - _ _ /195 - _ _ /200 - _ _ /205 - _ _ /210 - _ _ /215 - _ _ /220 - _ _ /225 - _ _ /230 - _ _ /235 - _ _ /240 - _ _ /245 - _ _ /250 - _ _ /255 - _ _ /260 - _

5 DSK US (09.04) 5 Nominal volumetric Plug-in nozzle D 1 flow 1 ) Order description Part Number Complete spare part [l/min] [ mm] [Type] Part number SP/SMB 8/ _ / _ _ /2 - _ _ /275 - _ _ /280 - _ _ /285 - _ _ /290 - _ _ /295 - _ _ /300 - _ _ /305 - _ _ /310 - _ _ /315 - _ _ /320 - _ ) in operating viscosity 300 mm²/s. Oil filter with shut-off valve Material... AlCuMgPb F38, neutrally anodized Mesh spacing mm Weight kg Dummy element Application... to blank off unused mounting plate outlets Material... AlCuMgPb F38, neutrally anodized Model:... with mounting screws M6 45 and sealing rings Weight kg/pc Order Information Oil filter with shut-off valve... Part number Order information Dummy element... Part number approx.130 G 1/ M wrench SW Fig. 6 Oil filter with shut-off valve Fig. 7 Dummy element for flow limiter

6 DSK US (09.04) 6 Mounting plate for a flow limiter with interchangeable strainer (40) Expanded lenght Material... AlCuPb F38, neutrally anodized Mesh spacing interchangeable strainer mm 30 Weight kg 15 Ø Order Information Mounting plate for a flow limiter with interchangeable strainer... Part number SW27 Mounting plate for 1 to 6 flow limiters G3/ Input G3/8 Fig. 8 Mounting plate for a flow limiter with interchangeable strainer Material... AlCuMgPb F38, neutrally anodized Weight... see table (40) Ø Number Dim. L Dim. L 1 Weight Part number flow limiter [n][mm] [mm] [kg/part] Ø Inlet G 1/ L1 G 3/8 Fig. 9 Dimension drawing of mounting plate for 1 to 6 flow limiters SP/SMB 8.. Mounting plate for 1 to 6 flow limiters and oil filter Material... AlCuMgPb F38, neutrally anodized Weight... see table Number Dim. L Dim. L 1 Weight Part number flow limiter [n][mm] [mm] [kg/part] , , , , , , Fig. 10 Dimension drawing of mounting plate for 1 to 6 flow limiters and oil filter

7 DSK US (09.04) 7 Example of an oil circular lubrication system The pump (1) delivers the lubricant to the main line (2). From here, the lubricant then reaches the lubricating point directly via the flow limiter (4), or via the progressive distributor (3) or flow divider (6) which are connected to it. The signal transmittersor proximity switches which are screwed into the flow limiters (4) monitor the volumetric flow. Collective monitors (5) evaluate the entering signals. 1 Pump 2 Main line 3 Progressive distributo 4 flow limiter with signal transmitter 5 Collective monitor 6 Flow divider Replacing plug-in nozzles Interrupt oil feed to flow limiter above shut-off valve (at oil filter, if required). control plunger held under spring pressure! Remove stop screw (hexagonal 30 mm) or signal transmitter or proximity switches with sealing ring slowly Caution! Escaping oil may be hot! Remove control plunger, plug-in nozzle with sealing ring and pressure spring. Remove plug-in nozzle from control plunger. Use a rod approx. ø 7 in diameter, if necessary, (on no account a pointed instrument such as a needle). Insert new plug-in nozzle with sealing ring into the control plunger as far as it will go. Insert pressure spring (without crossing the thread) into the bore hole. Insert control plunger with new plug-in nozzle on top of the pressure spring into the bore hole without crossing the thread. Check control plunger for smooth action by pressing against the pressure spring. Crossing the thread causes malfunctions. Screw in stop screw or signal transmitter with sealing ring. Open shut-off valve Fig. 11 Example of an oil circular lubrication system 1 flow limiter 2 Bush 3 Control plunger 4 Interchangeable plug-in nozzle 5 Pressure spring 6 Mounting plate 7 Stop screw Fig. 12 Replacing plug-in nozzles on flow limiter

8 DSK US (09.04) 8 Accessories Proximity switch Sockets straight, 4-poles, M 12x Sockets angled, 4-poles, M 12x Sockets straight, 4-poles, M 12x1 with orange cable 5 m Sockets angled, 4-poles, M 12x1 with orange cable 5 m Other publications Electric Plug-and Socket Connectors Replacement parts Designation Part number without nozzle, signal transmitter Gasket set for Signal transmitter Version E2 Signal transmitter without coupler socket Signal transmitter with coupler socket E2 (230 V AC) Coupler socket E2 (230 V AC) Signal transmitter Version E4 Signal transmitter without coupler socket Signal transmitter with coupler socket ( 24 V DC) Coupler socket (24 V DC) Proximity switch Proximity switch General Interchangeable strainer, mesh spacing 300 µm Gasket set for interchangeable strainer Filter insert, filter fineness 100 µm Gasket set for filter Please note: All VOGEL products must be used correctly. If operating instructions are supplied with the products, any additional device-specific instructions and information given in those operating instructions should be applied. Please note, in particular, that hazardous materials of any type, particularly materials that are classified as hazardous in EU Directive 67/548/EEC, article 2, para. 2, must not be used to fill or be pumped and/or distributed by VOGEL central lubricationsystems and components without the prior written approval of VOGEL. No products manufactured by VOGEL are approved for use with gases, liquefied gases, gases that are released under pressure, vapours and any liquids with a vapour pressure of more than 0.5 bar above normal atmospheric pressure (1013 mbar) at the maximum permitted temperature. Willy Vogel AG Motzener Strasse 35/ Berlin, Germany PF Berlin Tel. +49 (0) Fax +49 (0) info@vogel-berlin.de Willy Vogel AG 2. Industriestrasse Hockenheim Germany Tel. +49 (0) / 27-0 Fax +49 (0) / info@vogel-berlin.de VOGEL France SAS Rue Robert Amy, B.P Saumur cedex France Tel. +33 (0) Fax +33 (0) info@vogelfrance.com We reserve the right to make amendments. 09/2004