Model 2851 CONSTANT FLOW REGULATOR

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1 CONSTANT FLOW REGULATOR Model 2851 The model 2851 constant flow regulator is designed to provide constant flow of liquids or gases regardless of pressure variations. It is intended for low liquid flows in applications where supply or backpressure varies and for gas flows in applications where backpressure varies. The regulator is a membrane type differential pressure controller which is supplied with model L variable area flow meter. FEATURES Reliable operation Stainless steel construction Two piece construction, easy maintenance Competitively priced setting and monitoring TYPICAL APPLICATIONS Control of sealwaters Water / Air purging Level measurement in tanks ACCESSORIES Viton -seals 1 36

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3 Model 3630 The Model 3630 constant flow regulator is designed to provide a constant flow of liquids in applications where supply or backpressure varies and to provide a constant flow of gases in applications where backpressure varies. The Model 3630 is a membrane type differential pressure controller and is supplied with model L variable area flow meter for flow rate indication and setting. FEATURES Reliable operation Aluminium or Stainless steel construction Easy maintenance Competitively priced Model L flow meter for flow rate setting and monitoring Constant flow regulator 3630 equipped with model LH flow meter TYPICAL APPLICATIONS Water purging for instruments Air purging in level measurements Gas purging in p measurements ACCESSORIES AND OPTIONS Flow alarm Thread adapters 338

4 Technical data 3630 Max. flow 1,5 l/min H 2 O (60 Nl/min Air at 6 barg) Max. diff. pressure 10 bar Max. static pressure 20 bar Pressure drop at max. flow 2 bar Max. temperature 75 C (*80 C) Body Aluminium or Spring Membrane EPDM Plate Nylon (PA 6) (*PVDF) Seals Nitrile (*Viton, EPDM) Mesh PTFE Connections BSP 1/4" or NPT 1/4" Installation position Vertically Weight 500 g (Aluminium body)or 1100 g ( body) flowmeter L.. Constant flow regulator l/min Nl/min Air at 6 bar(g) BSP1/4 OUT M5 BSP1/4 IN ~ PERFORMANCE p/bar l/min 1.5 l/min H2O Connections 1.0 BSP 1/4" N NPT 1/4" Body 0.5 A H Aluminium p/bar 439

5 Model 2914 The Model 2914 constant flow regulator is designed to provide constant flow of mediumvolume liquid flows in applications where supply or backpressure varies. The regulator is a membrane type differential pressure controller with a build-in needle valve for flow rate adjustment. FEATURES Reliable operation Stainless steel construction Two piece construction, easy maintenance Competitively priced Constant flow regulator 2914 equipped with model VL flow meter TYPICAL APPLICATIONS Control of sealwaters Control of flushwaters Batching of liquids Water purging ACCESSORIES AND OPTIONS High p model Flow meter to indicate flow rate Thread adapters 540

6 *) Special construction on request Technical data 2914 Max. flow 20 l/min H 2 O Nominal flow 14 l/min H 2 O Max. diff. pressure 12 bar (*20 bar) Max. static pressure 25 bar Pressure drop at nominal flow 3 bar Max. temperature 90 C (Momentary 120 C) Body Valve Spring Membrane EPDM Seals Nitrile Connections BSP 1/2" or NPT 1/2" Installation position Any required Weight 1,8 kg / Options Without adapter VL With adapter for connecting to model VL flow meter Connections BSP 1/2" IN 16 OUT max. 116 N NPT 1/2" Valve size IN / OUT BSP1/2 or NPT1/ mm valve for flow rates 10 l/min or below 9 mm valve for flow rates above 10 l/min Differential pressure Ø 75 D Max. 12 bar Max. 20 bar M5 UNC (2914-N) PERFORMANCE l/min l/min H2O Valve fully open p/bar 641