Best 15 Stopcocks for 2020

 

Kartell 228255 Polypropylene Miniature Stopcock 8mm Tubing Size Case Of 10 #ad

Kartell 228255 Polypropylene Miniature Stopcock, 8mm Tubing Size (Case Of 10)

Kartell 228255 Polypropylene Miniature Stopcock, 8mm Tubing Size (Case Of 10) #ad - Material polypropylene-makes it durable and adds to its quality. Accepts tubing size 8mm. Available in dimensions (l x w x h) 24 x 06 x 1 inches with outer diameter of 8mm. No blockage of bores with grease. Easy-turning stopcock key requires no lubricant.

 

Laboy HMA014103 Glass Vacuum Flow-Control Adapter Straight with PTFE Stopcock and Two 2440 Joints #ad

Laboy HMA014103 Glass Vacuum Flow-Control Adapter Straight with PTFE Stopcock and Two 24/40 Joints

Laboy HMA014103 Glass Vacuum Flow-Control Adapter Straight with PTFE Stopcock and Two 24/40 Joints #ad - D. Vacuum flow-control adapter, with 2mm ptfe stopcock and 8mm o. With 24/40 standard upper outer and lower inner joint. Hose connection.

 

SEOH Separatory Funnel PTFE Stopcock 50 ml #ad

SEOH Separatory Funnel PTFE Stopcock 50 ml

SEOH Separatory Funnel PTFE Stopcock 50 ml #ad - Separatory funnel, conical pear shaped, is made of heat resistant borosilicate glass with ptfe stopcock and ground glass stopper. Capacity 50ml. After purchase, the seller will contact you via email to verify your permit. Texas residents under texas state law, this product requires a precursor chemical/laboratory apparatus nar-120 permit to ship to a texas address. Stopcocks do not require expensive lubricant therefore reducing the risk of contamination and freezing. Failure to provide a valid permit will result in a cancellation and refund of your order.

 

ACRYLIC BURET PTFE STOPCOCK 50 ML 1PK #ad

ACRYLIC BURET, PTFE STOPCOCK, 50 ML, 1/PK

ACRYLIC BURET, PTFE STOPCOCK, 50 ML, 1/PK #ad - 1ml. Acrylic buret, ptfe stopcock, 50 ml, 1/pk, this buret has a clear acrylic body and leak-proof stopcock with a self lubricating ptfe plug. Graduations are at 0. ¿Looking for more variety, different size or a different product, visit our store. It can be used with phs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Each buret is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except hydrofluoric acid and ammonium hydroxide.

 

1000ml Glass Separatory Funnel Set 1000ml with Glass Stopcock and Ringstand #ad

1000ml Glass Separatory Funnel Set, 1000ml with Glass Stopcock and Ringstand

1000ml Glass Separatory Funnel Set, 1000ml with Glass Stopcock and Ringstand #ad - 1000ml separatory funnel, with glass stopck and stopper2. Electroplate steel ring 4″ | 10cm diameter. Stamping steel support standrod height 20″ | 50cmrod diamter 3/8″ | 10mmthe base 8″x5″ | 21cmx12cm3. The packages includes1.

 

LabStock LB10-500 Separatory Funnel Glass Stopcock 500 mL Capacity #ad

LabStock LB10-500 Separatory Funnel, Glass Stopcock, 500 mL Capacity

LabStock LB10-500 Separatory Funnel, Glass Stopcock, 500 mL Capacity #ad - Our glass stopcocks are pre-lubed with a very thin film of this grease, and it should not come into contact with your compound. Glass stopcocks are held into the bore with a rubber o ring and may be easily removed for cleaning and re-lubing as needed. This joint requires a thin band of lubrication to form tight seal, otherwise it will leak. Pear-shaped design, widely used in organic chemistry for separating organic from aquatic products. These funnels are made of borosilicate glass and have ground glass stoppers and stopcocks. The standard lubrication is laboratory-grade high vacuum silicon grease. Traditional glass stopcocks are ground precisely to fit into a bore hole at the base of the separator funnel.

 

Corning Pyrex 2094-250 Borosilicate Glass 250mL Dispensing Colored Scale Burette with Straight Bore PTFE Stopcock #ad

Corning Pyrex 2094-250 Borosilicate Glass 250mL Dispensing Colored Scale Burette, with Straight Bore PTFE Stopcock

Corning Pyrex 2094-250 Borosilicate Glass 250mL Dispensing Colored Scale Burette, with Straight Bore PTFE Stopcock #ad - This 250ml corning pyrex graduated buret is suitable for use in school and institutional laboratories not requiring the accuracy of our class a model. Height 550mm (approx). Equipped with a ptfestopcock plug to reduce freezing and eliminate lubricant contamination. The smooth micro-finish of the stopcock barrel assures a precision fit and optimum leak-resistant performance. Corning # 2094-250. Stopcock bore no. Tolerance +/- 2ml. Material borosilicate glass code 7740. Outer diameter 33mm (approx). Stopcock style straight bore teflon. Made from close tolerance, accurate bore tubing with uniform walls, this buret has a permanently colored scale. 4. Buret is used for dispensing large volumes of liquids rapidly and accurately. Capacity 250ml.

 

500ml 2029 joints Lab Glass Pear Shape Separatory Funnel With PTFE Stopcock #ad

500ml 20/29 joints Lab Glass Pear Shape Separatory Funnel With PTFE Stopcock

500ml 20/29 joints Lab Glass Pear Shape Separatory Funnel With PTFE Stopcock #ad - Serrated outlets are 48-millimeter long, tapering from 14 to 7-millimeter, outlet bore 3-millimeter. Spring-loaded stopcocks take included snap-in buttons labeled gas. Maximum recommended line pressure 69 kpa (10 psig). Chrome-plated brass. Pedestal-style double cock for mounting on top or on splash shield of bench.

 

2-Way Polypropylene Stopcock wPTFE Plug #ad

2-Way Polypropylene Stopcock w/PTFE Plug

2-Way Polypropylene Stopcock w/PTFE Plug #ad - It can be used as either an on/off valve, or as a flow control simply turning the handle will regulate how much of the hole drilled into the plug is available for the solution to pass through. With their ptfe plug and polypropylene housing, these stopcocks are leak-proof and featured ribbed ports on either side, allowing them to accommodate up to two pieces of tubing with an interior diameter ranging from 6-10mm. Because the plug can be made of extremely rigid materials such as ptfe, it makes them ideal for applications that require high-purity. Please note that the color of the thumbscrew may vary.

 

Nalgene 6470-0002 Polypropylene 3-Way Stopcock With PTFE TFE Plug  14 - 516 Inch ID  Autoclavable 2mm bore #ad

Nalgene 6470-0002 Polypropylene 3-Way Stopcock With PTFE TFE Plug, 1/4 – 5/16 Inch I.D. Autoclavable, 2mm bore

Nalgene 6470-0002 Polypropylene 3-Way Stopcock With PTFE TFE Plug, 1/4 – 5/16 Inch I.D. Autoclavable, 2mm bore #ad - The nalgene polypropylene 3-way stopcock with teflontfe plug is designed with three serrated tubulations in a t shape for the secure attachment of tubing. Nalgene # 6470-0002. D. This stopcock is non-seizing autoclavable and accept 1/4- 5/16 inch i. Tubing. Bore size 2mm.

 

SEOH Buret Burette Glass Stopcock Borosilicate Glass 50 ml #ad

SEOH Buret Burette Glass Stopcock Borosilicate Glass 50 ml

SEOH Buret Burette Glass Stopcock Borosilicate Glass 50 ml #ad - Made from borosilicate glass. Capacity 50 ml. Accurately graduated, with white engraved markings, with fitted straight bore glass leak proof stopcock with capillary jet. Also known as geissler burets. Thick wall construction.

 

WaterSaver L4100 GAS Brass Gas Labeled Bench Service Stopcock 38 IPT Male #ad

WaterSaver L4100 GAS Brass Gas Labeled Bench Service Stopcock, 3/8″ IPT Male

WaterSaver L4100 GAS Brass Gas Labeled Bench Service Stopcock, 3/8″ IPT Male #ad - Water saver faucet labeled bench service stopcock. Maximum recommended gas line pressure 10 psi (69 kpa). Of chrome-plated brass. Outlet bore 3 millimeter without flange. Spring-loaded ground key stopcock with index labeled gas. Have 3/8-inches ipt. Male thread and serrated outlet 48 millimeter long, which tapers from 13 to 6 millimeter.

 

American Educational 7-850250 Bomex Glass Conical Separatory Funnel with PTFE Stopcock 250mL Capacity #ad

American Educational 7-850250 Bomex Glass Conical Separatory Funnel, with PTFE Stopcock, 250mL Capacity

American Educational 7-850250 Bomex Glass Conical Separatory Funnel, with PTFE Stopcock, 250mL Capacity #ad - The american educational 7-850250 250ml bomex glass separatory funnel has a ptfe stopcock and is used to separate two liquids with different densities. Teachers in pre-k, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (stem) curriculum to demonstrate stem concepts and real-world applications through hands-on activities. Bomex borosilicate glass construction has a low coefficient of thermal expansion and is resistant to thermal stress. American educational products manufactures learning materials in math, science, and reading/language arts for students in pre-kindergarten through grade 12. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology. The ptfe stopcock does not require greasing. Science education products incorporate applied math and science principles into classroom and homeschool-based projects. The company, founded in 1986, is headquartered in fort collins, co. The conical shape ensures that the highest density liquid is dispensed.

 

Precision 2440 90 degree Glass Stopcock Vacuum Adapter #ad

Precision 24/40 90 degree Glass Stopcock Vacuum Adapter

Precision 24/40 90 degree Glass Stopcock Vacuum Adapter #ad - Precision labware supplies the top quality laboratory glassware and accessories to universities, research institutes and industrial labs. 126902. With direct distribution from our manufactory, we guarantee our products have the most competitive price while maintain the high quality. With 90 degree hose connection, glass stopcock, 24/40 standard taper inner joint. Style hose connection, adapter. Catalog no. Precision(tm) glass products are made of high quality borosilicate glass with low linear coefficient of expansion, and meet astm specification e438, type 1, class a ‘standard specification for glasses in laboratory apparatus’.

 

Stopcocks Per Pack 50 3-way Nylon Stopcocks 3-way Nylon Valve Three Way Stopcock Stopcocks with Luer Connections Tomopal Nylon Stopcock for Industrial and Laboratory uses PN 100-1130-X050 #ad

Stopcocks (Per Pack 50), 3-way Nylon Stopcocks, 3-way Nylon Valve, Three Way Stopcock, Stopcocks with Luer Connections, Tomopal Nylon Stopcock for Industrial and Laboratory uses. P/N: 100-1130-X050

Stopcocks (Per Pack 50), 3-way Nylon Stopcocks, 3-way Nylon Valve, Three Way Stopcock, Stopcocks with Luer Connections, Tomopal Nylon Stopcock for Industrial and Laboratory uses. P/N: 100-1130-X050 #ad - Material nylon. Luer slip can be connected to ¼” id tubing. Product type stopcocks. Used with the 30 ml glass syringes for dga testing kit. Used with the 50 ml glass syringes for dga testing kit.





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