{"title":"Pneumatic Pumps","description":"","products":[{"product_id":"geotech-bladder-pump","title":"Geotech GeoControl Pro \u0026 Bladder Pump Kits","description":"\u003cp\u003eThe \u003cstrong\u003egeocontrol PRO™\u003c\/strong\u003e is the controller that drives a Geotech bladder pump. It meters compressed air into the pump on a timed cycle — you set the drive and vent intervals, and the controller repeats them precisely, which is what produces the steady, low-turbidity flow that low-flow sampling protocols require.\u003c\/p\u003e\n\u003cp\u003eSupplied in a field case with a 12V cord and battery. Pressure range 0–100 PSI, cycle timing 0–180 seconds.\u003c\/p\u003e\n\u003ch3\u003eKit or controller only\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump kits\u003c\/strong\u003e pair the controller with a pump in your well diameter — 1.66\", 0.85\" or 0.675\" — and include the battery. The straightforward way to start from nothing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePFAS-free kits\u003c\/strong\u003e are the same package built with documented fluoropolymer-free wetted materials, for programs where PFAS is an analyte. Same price as standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController only\u003c\/strong\u003e ships without a pump or battery, for anyone adding a second controller to an existing fleet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompleting your system\u003c\/h3\u003e\n\u003cp\u003eBeyond the controller and pump you will need bladders, bonded tubing and a reel — all sized to your pump diameter. Each diameter has a collection gathering everything that fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e — for 2\" wells\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-85\" title='0.85\" Bladder Pump System'\u003e0.85\" Bladder Pump System\u003c\/a\u003e — for 1\" wells\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-675\" title='0.675\" Bladder Pump System'\u003e0.675\" Bladder Pump System\u003c\/a\u003e — for 3\/4\" wells and direct-push points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/ground_water_sampling_equipment\/geocontrol_pro.pdf\" title=\"Specifications\" rel=\"noopener\" target=\"_blank\"\u003eSpecifications\u003c\/a\u003e | \u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Geotech_Geocontrol_PRO_Pump_Controller.pdf\" title=\"Manual\" rel=\"noopener\" target=\"_blank\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1.66\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711891134,"sku":"91150027","price":3555.0,"currency_code":"USD","in_stock":true},{"title":"0.85\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711923902,"sku":"91150028","price":3555.0,"currency_code":"USD","in_stock":true},{"title":"0.675\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711956670,"sku":"91150029","price":3555.0,"currency_code":"USD","in_stock":true},{"title":"GeoControl Pro Controller Only — No Pump, No Battery","offer_id":44580712087742,"sku":"91150017","price":3200.0,"currency_code":"USD","in_stock":true},{"title":"1.66\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729238206,"sku":"91150011","price":3555.0,"currency_code":"USD","in_stock":true},{"title":"0.85\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729270974,"sku":"91150015","price":3555.0,"currency_code":"USD","in_stock":true},{"title":"0.675\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729303742,"sku":"91150016","price":3555.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/PortableBladderPumps.jpg?v=1726776701"},{"product_id":"solinst-407-bladder-pump","title":"Solinst 407 Bladder Pump","description":"\u003cp\u003eThe Solinst 407 Mk2 Bladder Pump is a pneumatically-driven groundwater sampling pump built around a flexible Santoprene bladder inside a rigid stainless-steel or PVC body. Compressed air or nitrogen from a surface control unit pressurizes the space between the bladder and the housing, collapsing the bladder and forcing the water inside it up through a check valve to the discharge line; venting the drive pressure lets the bladder re-expand and refill with fresh formation water through a second check valve. Because the drive gas only contacts the outside of the bladder — never the sample itself — the pump avoids aerating or degassing the water, making it a standard choice for VOC-sensitive, low-flow sampling under EPA protocols.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have everything you need?\u003c\/strong\u003e The 407 Bladder Pump requires a separate compressed-gas source and control unit — such as Solinst's 464 Electronic Pump Control Unit and a 12V compressor or gas cylinder — to drive the bladder cycle; it does not operate on its own. Stainless-steel models are rated to 500 ft (150 m) below grade; PVC models to 100 ft (30 m). Replacement bladders, drop tubes, tubing, and compressors are available on the \u003ca href=\"\/products\/solinst-407-bladder-pump-parts-accessories\" title=\"Solinst 407 Bladder Pump Parts \u0026amp; Accessories\" rel=\"noopener\" target=\"_blank\"\u003eSolinst 407 Bladder Pump Parts \u0026amp; Accessories\u003c\/a\u003e page.\u003c\/p\u003e","brand":"Solinst","offers":[{"title":"1.66\" PVC x 2ft","offer_id":48181378351294,"sku":"117212","price":188.62,"currency_code":"USD","in_stock":true},{"title":"1.66\" PVC x 4ft","offer_id":48181378384062,"sku":"117357","price":232.94,"currency_code":"USD","in_stock":true},{"title":"1.66\" Stainless Steel x 2ft","offer_id":48181378416830,"sku":"117209","price":323.23,"currency_code":"USD","in_stock":true},{"title":"1.66\" Stainless Steel x 2ft - 316 SS Balls","offer_id":48181378449598,"sku":"117218","price":342.56,"currency_code":"USD","in_stock":true},{"title":"1.66\" Stainless Steel x 4ft","offer_id":48181378482366,"sku":"117236","price":426.4,"currency_code":"USD","in_stock":true},{"title":"1.0\" Stainless Steel x 2ft","offer_id":48181378515134,"sku":"117217","price":253.1,"currency_code":"USD","in_stock":true},{"title":"1.0\" Stainless Steel x 2ft - 316 SS Balls","offer_id":48181378547902,"sku":"117219","price":265.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/407-solinst-bladder-pumps-and-replaceable-cartridge.webp?v=1784665341"},{"product_id":"solinst-408-double-valve-pump","title":"Solinst 408 Double Valve Pump","description":"\u003cp\u003eThe Solinst 408 Double Valve Pump is a pneumatically-driven, positive-displacement pump with a check valve at its base and another at its top, connected to the surface by separate drive and sample lines. During the drive phase, compressed gas sent down the drive line pushes the static water column downward, closing the bottom check valve and forcing water already in the pump chamber up through the top check valve to the sample line. Venting the drive-line pressure lets formation pressure reopen the bottom check valve and refill the chamber with fresh water, while the top check valve keeps the sample line from draining back down. Because the drive gas only ever contacts the drive-line water column — never the sample itself — the 408 is well suited to VOC-sensitive sampling at higher flow rates than a bladder pump can achieve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have everything you need?\u003c\/strong\u003e The 408 Double Valve Pump requires a separate compressed-gas source and control unit — such as Solinst's 464 Electronic Pump Control Unit — to drive its cycle; it does not operate on its own. Stainless-steel models are rated to 500 ft (150 m) below grade; PVC models to 100 ft (30 m), at operating pressures up to 250 psi. Replacement parts are available in the \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-waterloo-system-parts-accessories\" title=\"Solinst Waterloo System Parts \u0026amp; Accessories\" rel=\"noopener\" target=\"_blank\"\u003eSolinst Waterloo System Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Solinst","offers":[{"title":"1.66\" PVC x 2ft","offer_id":48181380677822,"sku":"117312","price":168.46,"currency_code":"USD","in_stock":true},{"title":"1.66\" Stainless Steel x 2ft","offer_id":48181380710590,"sku":"117252","price":304.69,"currency_code":"USD","in_stock":true},{"title":"Mk3 5\/8\" Stainless Steel x 1ft","offer_id":48181380743358,"sku":"103104","price":124.13,"currency_code":"USD","in_stock":true},{"title":"1\/4\" x .170\" Natural LDPE Sample Line Tubing (500ft coil)","offer_id":48181814198462,"sku":"109463","price":95.17,"currency_code":"USD","in_stock":true},{"title":"Replacement SS Filter (1.66\")","offer_id":48181814231230,"sku":"110600","price":9.98,"currency_code":"USD","in_stock":true},{"title":"SC3500 1\/4\" Dual Tubing Reel Assy c\/w 500ft Tubing","offer_id":48181814263998,"sku":"111845","price":1551.4,"currency_code":"USD","in_stock":true},{"title":"Oetiker Clamp Set (1\/4\" Double Ear, set of 10)","offer_id":48181814296766,"sku":"108850","price":21.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/408-double-valve-pumps-1x.jpg?v=1784665401"},{"product_id":"solinst-408m-micro-double-valve-pump","title":"Solinst 408M Micro Double Valve Pump","description":"\u003cp\u003eThe Solinst 408M Micro Double Valve Pump miniaturizes the same double check-valve pumping principle as the 408 into a flexible, coaxial-PTFE tubing assembly only 3\/8\" in overall diameter. A small filter\/pump body at the intake — fitted with a sintered 316 stainless steel 50-micron screen — feeds formation water into both an outer annular drive line and an inner 3\/16\" sample line. Compressed gas cycled down the annulus by a surface control unit closes a lower check valve and forces the water in the inner tube up to the surface; venting the gas lets formation pressure reopen the lower valve and refill both tubes with fresh water, while an upper check valve prevents the sample from draining back. Its narrow profile lets it fit inside 1\/2\" ID tubing, making it purpose-built for CMT multilevel monitoring channels and other small-diameter installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have everything you need?\u003c\/strong\u003e The 408M requires a separate compressed-gas source and control unit — such as Solinst's 464 Electronic Pump Control Unit — to drive its cycle; it does not operate on its own. Each assembly is supplied as a complete pre-configured length (tubing, filter, and manifold included) and can also be field-spliced for custom depths. Multipurge manifold parts are available in the \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-cmt-multilevel-system-parts-accessories\" title=\"Solinst CMT Multilevel System Parts \u0026amp; Accessories\" rel=\"noopener\" target=\"_blank\"\u003eSolinst CMT Multilevel System Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Solinst","offers":[{"title":"90ft","offer_id":48181381497022,"sku":"108220","price":1166.35,"currency_code":"USD","in_stock":true},{"title":"140ft","offer_id":48181381529790,"sku":"108219","price":1746.7,"currency_code":"USD","in_stock":true},{"title":"240ft","offer_id":48181381562558,"sku":"108218","price":2890.48,"currency_code":"USD","in_stock":true},{"title":"3\/8\" Pump (PTFE)","offer_id":48181814493374,"sku":"107220","price":80.8,"currency_code":"USD","in_stock":true},{"title":"Filter Assembly (Sintered - 50 Microns)","offer_id":48181814526142,"sku":"110603","price":28.73,"currency_code":"USD","in_stock":true},{"title":"Head Assembly","offer_id":48181814558910,"sku":"106870","price":72.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/408mhero.jpg?v=1784665457"},{"product_id":"solinst-464-electronic-pump-control-unit","title":"Solinst 464 Electronic Pump Control Unit","description":"\u003cp\u003eThe Solinst 464 Electronic Pump Control Unit is a battery-powered timer\/controller that drives Solinst's pneumatic pumps — the 407 Bladder Pump, 408\/408M Double Valve Pumps, and 425 Discrete Interval Sampler hand pump. It regulates a compressed gas supply (air, nitrogen, or an inert gas cylinder) delivered through a drive line to the pump, while an internal solenoid valve cycles between a drive phase (pressurizing the line to force water upward) and a vent phase (releasing pressure so the pump recharges with water). Cycle timing can be set from three built-in Low\/Medium\/High presets or user-defined custom drive\/vent times from 1 second to 99 hours, with up to 99 named settings stored in non-volatile memory. If the batteries are removed or depleted, a manual push-button valve on the front panel takes over, letting the unit run on compressed gas alone with no electronics required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have everything you need?\u003c\/strong\u003e The 464 requires a compressed gas source — such as a 12V compressor or a gas cylinder — plus the pneumatic pump it will drive (Solinst 407 Bladder Pump, 408\/408M Double Valve Pump, or 425 Discrete Interval Sampler). Replacement drive lines and supply lines are available in the \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-464-pump-control-unit-parts-accessories\" title=\"Solinst 464 Pump Control Unit Parts \u0026amp; Accessories\" rel=\"noopener\" target=\"_blank\"\u003eSolinst 464 Pump Control Unit Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Solinst","offers":[{"title":"125 psi","offer_id":48181446017214,"sku":"112506","price":1308.21,"currency_code":"USD","in_stock":true},{"title":"250 psi","offer_id":48181446049982,"sku":"112508","price":2780.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/electronic-pump-control-unit-1x.jpg?v=1784667359"}],"url":"https:\/\/envirotechonline.com\/collections\/pneumatic-pumps.oembed","provider":"EnviroTech Services","version":"1.0","type":"link"}