Micro Double Valve Pump Operating Instructions
Contents
1. 023 O l ns 35 Todd Road Georgetown Ontario Canada L7G 4R8 Web Site www solinst com E mail instruments solinst com2. M take a Water Level measurement using an accurate Water Level Meter such as the Solinst Model 101 to determine the height of water above the pump intake A minimum of 10 ft is recommended 2 Insert your sample line at surface into your sample container Note Please refer to the 466 Electronic Control Unit Operation Instructions for proper setup and operation using a compressed gas source 3 Adjust the control unit Pressure Regulator to the appropriate value pump intake depth below grade in feet x 0 43 10 psi 4 Adjust the Drive and Vent times on the Model 466 Electronic Control Unit to adjust the sampling flow rate to the desired amount Hi During the Drive period on the Control Unit the sample line will produce your water sample During the Vent period on the Control Unit the Drive Line is filling again under hydrostatic pressure 6 For Double Valve Pump Optimization select the desired flow rate from the pre set screens Use the Flow Regulator to adjust flow to your desired rate If a higher flow is required slowly increase the Drive time to increase the flow rate If air is expelled decrease the Drive time To further optimize the flow rate increase or decrease the Vent time until the highest flow rate is achieved 7 Once optimum flow rates have been achieved make note of the pressure flow rate and timer settings for subsequent sampling dates For example with an 85 ft 408M assembly and a static water leve
3. Solinst i Micro Double Valve Pump Operating Instructions Operating Principles When the Solinst Micro Double Valve Pump DVP is placed in a well or borehole water rises inside the pump and up the concentric tubes to static level A Control Unit is used to supply compressed gas or air to the pump on the drive cycle The gas pushes down on the water column contained in the outer 3 8 dia tubing drive line closing the check valve at the base of the pump This forces the water up the inner 3 16 dia sample line tubing A vent cycle during which the gas is released allows water to refill the pump and drive line outer tubing The top check valve prevents water in the sample line from falling back into the pump body This drive and vent cycle is repeated manually or automatically as set by the timers on the control unit The cycle may be regulated for purging or sampling Note The pump has been cleaned before leaving Solinst however if you wish to decontaminate your pump before use follow the decontamination procedure overleaf Purging Sampling Setup 1 When using the Solinst Model 466 Electronic Control Unit connect the Air Out line to the quick connect fitting on the side of the Delrin pump head manifold 2 This feeds air or nitrogen to the drive line which is the larger diameter tubing 3 The smaller inner tube is the sample line Taking a Sample with the Micro Double Valve Pump 1 Prior to installing 408
4. l at 60 ft With a pump pressure of 85 ft x 0 43 10psi 50psi a suitable drive of 11 sec and vent of 9 sec will produce a flow rate of about 150mL min Model 408M Micro DVP 3 16 Teflon Sample Line gt gt Sample Discharge Pump Head Manifold Drive Gas Entry lt 3 8 Teflon Pump Body 3 8 Teflon or gt LDPE Tubing Needle Valve Stainless Steel Check Ball Intake Filter Complete Assembly with Manifold o UUU High Quality Groundwater and Surface Water Instrumentation Decontamination Suggestions 466 Electronic Control Unit 1 Disassembling your Model 408M Micro Double Valve Pump 160 amp 250 psi is not recommended 2 Following your usual cleaning protocols we suggest washing the exterior of the pump assembly with a suitable cleaning solution ie soap mild solvent 3 The pump s interior can be cleaned by flushing or pushing your cleaning solution up and through the pump s intake You have a couple of options to achieve interior flushing 4 With the filter unscrewed and off the pump s intake push a clean piece of 5 8 X 3 8 silicon or equivalent tubing over the 3 8 OD SS pump intake Alternatively you can use a 1 4 push fitting 1 4 X 10 32 UNF which can be directly Sample Line threaded into the pump s intake Then push a suitable length of 1 4 tubing into this fitting With either option connect the other end of the tubing to a peristaltic
5. pump and push your cleaning solution through the pump s interior Optional Multi Purge Manifold Assembly To purge and sample up to 7 Micro Double Valve Pumps at a single location a Multi Purge Manifold Assembly is available 1 Mount the Multi Purge Manifold over the well installation after obtaining water level measurements r 2 Thread the pumps down through the collar opening in the l 7 Sample Multi Purge Manifold below the head assembly 466 12 Volt Compressor Bottle 3 Connect each individual pump manifold to the appropriate ly numbered Multi Purge Manifold connection by pushing the male LL10 connector on the pump manifold into the brass quick connect fitting on the assembly while pulling back the brass sleeve on the fitting 4 Connect the compressed gas source controller to the Multi Purge a ate connection at the top of the head assembly using the same Pulp ee method as describe in step 3 5 Open and adjust valves on the head assembly of the Multi Purge Manifold for those pumps that require purging sampling Operate control box according to the instructions provided Typical Sampling Setup Note Minimum input pressure to 466 Electronic Control Unit is 100 psi Top and Side View of Multi Purge Manifold with 4 Pumps Connected Printed in Canada g g r 01 2005 For further information contact Solinst Canada Ltd Fax 1 905 873 1992 800 516 9081 Tel 1 905 873 2255 800 661 2
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