18 Top Stopcocks for 2019

 

SEOH Separatory Funnel PTFE Stopcock 50 ml #ad

SEOH Separatory Funnel PTFE Stopcock 50 ml

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

 

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. The standard lubrication is laboratory-grade high vacuum silicon grease. 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. Glass stopcocks are held into the bore with a rubber o ring and may be easily removed for cleaning and re-lubing as needed. Traditional glass stopcocks are ground precisely to fit into a bore hole at the base of the separator funnel. These funnels are made of borosilicate glass and have ground glass stoppers and stopcocks.

 

100ml DGA TRUTH Glass Syringe - 3 Way Stopcock - Padded box #ad

100ml DGA TRUTH Glass Syringe – 3 Way Stopcock – Padded box

100ml DGA TRUTH Glass Syringe – 3 Way Stopcock – Padded box #ad - Metal luer lock tip meets the specification of the american national standards for medical materials luer taper fitting performances iso 594 (earlier hima md 701, 1983) the luer locks are made of brass which are nickle & chrome plated standard luer lock syringes confirm to iso 594/1 595/2. Each glass syringe has following printed marks (1) graduation (2) custom fit (3) for industrial use (4) made in india (5) match numbers. Standard luer lock syringes cylinder plunger fit is leak proof and meets the requirements of federal specification gg-s-92 lb /a-a-54840/ iso 7886. Syringes reinforced flanges which is flat on two sides prevents from rolling syringe as per cadence catalog number g5177. Dga syringe are made of borosilicate heat resistant glass processed & annealed under controlled conditions to withstand longer hours of sterilization ie 121°c.

 

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

 

Cole-Parmer Stopcocks with Luer Connections 3-way male lock Non-sterile #ad

Cole-Parmer Stopcocks with Luer Connections; 3-way; male lock, Non-sterile

Cole-Parmer Stopcocks with Luer Connections; 3-way; male lock, Non-sterile #ad - Choose stopcocks with either a male luer lock or a male luer slip. Handle rotates 90deg on one-way stopcocks, 180deg on three-way stopcocks, and 360deg on four-way stopcocks. Warning this product is not approved or intended for, and should not be used for medical, clinical, surgical or other patient oriented applications. All have pc body and hdpe stem.

 

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 - With 90 degree hose connection, glass stopcock, 24/40 standard taper inner joint. 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’. Catalog no. With direct distribution from our manufactory, we guarantee our products have the most competitive price while maintain the high quality. Style hose connection, adapter. Precision labware supplies the top quality laboratory glassware and accessories to universities, research institutes and industrial labs. 126902.

 

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

 

Eisco Labs Borosilicate Burette Straight Bore PTFE Stopcock - 50mL cap 010mL grad Class A tolerance #ad

Eisco Labs Borosilicate Burette, Straight Bore, PTFE Stopcock – 50mL cap., 0.10mL grad., Class A tolerance

Eisco Labs Borosilicate Burette, Straight Bore, PTFE Stopcock – 50mL cap., 0.10mL grad., Class A tolerance #ad - Accuracy is per iso 385, din 12709. Eisco borosilicate burette, straight bore, ptfe stopcock, 50ml, class a burette these high quality borosilicate burettes are straight bore with interchangeable ptfe key stopcocks.

 

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

 

United Scientific BR2124-50 Burette with Straight Bore Glass Stopcock Class B 50ml Capacity #ad

United Scientific BR2124-50 Burette with Straight Bore Glass Stopcock, Class B, 50ml Capacity

United Scientific BR2124-50 Burette with Straight Bore Glass Stopcock, Class B, 50ml Capacity #ad - Accept 1/4- 5/16 inch id tubing. Bore size 4mm. Polypropylene 3-way stopcock with teflontfe plug. Designed with a serrated tubulation on each side for the secure attachment of tubing. Non-seizing and autoclavable.

 

500ml Separatory FunnelPressure Equalizing Funnel  Addition Funnel with PTFE stopcock #ad

500ml Separatory Funnel,Pressure Equalizing Funnel , Addition Funnel with PTFE stopcock,

500ml Separatory Funnel,Pressure Equalizing Funnel , Addition Funnel with PTFE stopcock, #ad - With standard 24/29 taper glass outer joint at top and inner joint at bottom, with ptfe stopcock upper on the bottom glass joint. 1. The 500ml pressure-equalizing dropping funnels have an additional narrow-bore glass tube from the upper part of the funnel bulb to the ground glass joint around the stem at bottom. 3 it is made of boro glass. 2.

 

Laboy HMF031504 Glass Conical Separators Funnel 250 mL with 22 Joint at Top and 4 mm Glass Stopcock #ad

Laboy HMF031504 Glass Conical Separators Funnel 250 mL with 22# Joint at Top and 4 mm Glass Stopcock

Laboy HMF031504 Glass Conical Separators Funnel 250 mL with 22# Joint at Top and 4 mm Glass Stopcock #ad - With shape of a cone and glass stopcock at bottom, and with a standard taper outer joint at top, laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. The separators funnel is also known as separation funnel, separating funnel, or colloquially separate funnel, is a piece of laboratory glassware used in liquid-liquid extractions to separate the components of a mixture into two immiscible solvent phases of different densities.

 

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 - Hose connection. Vacuum flow-control adapter, with 2mm ptfe stopcock and 8mm o. With 24/40 standard upper outer and lower inner joint. D.

 

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. Used with the 50 ml glass syringes for dga testing kit. Product type stopcocks. Used with the 30 ml glass syringes for dga testing kit. Luer slip can be connected to ¼” id tubing.

 

Cole-Parmer Stopcock with Luer Connections 1-way male lock Non-sterile #ad

Cole-Parmer Stopcock with Luer Connections; 1-way; male lock, Non-sterile

Cole-Parmer Stopcock with Luer Connections; 1-way; male lock, Non-sterile #ad - Choose stopcocks with either a male luer lock or a male luer slip. Warning this product is not approved or intended for, and should not be used for medical, clinical, surgical or other patient oriented applications. All have pc body and hdpe stem. Handle rotates 90deg on one-way stopcocks, 180deg on three-way stopcocks, and 360deg on four-way stopcocks.

 

Eisco Labs Acrylic Burettes w PTFE Stopcock 50mL Capacity 01mL Graduation Pack of 5 #ad

Eisco Labs Acrylic Burettes w/ PTFE Stopcock, 50mL Capacity, 0.1mL Graduation, Pack of 5

Eisco Labs Acrylic Burettes w/ PTFE Stopcock, 50mL Capacity, 0.1mL Graduation, Pack of 5 #ad - Eisco acrylic burette w/ ptfe stopcock, 50ml capacity, 0. 1ml graduation(1) buretthis high quality acrylic buret is leakproof with a ptfe plunger stopcock.

 

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. No blockage of bores with grease. Accepts tubing size 8mm. Easy-turning stopcock key requires no lubricant. Available in dimensions (l x w x h) 24 x 06 x 1 inches with outer diameter of 8mm.

 

Glass Separatory Funnel 125ml With Joints 2440 And 2mm PTFE Stopcock Pear shape Separating Funnel #ad

Glass Separatory Funnel 125ml With Joints 24/40 And 2mm PTFE Stopcock Pear shape, Separating Funnel

Glass Separatory Funnel 125ml With Joints 24/40 And 2mm PTFE Stopcock Pear shape, Separating Funnel #ad - Joint 24/40. With shape of a cone and ptfe stopcock at bottom,and with a standard taper outer joint at top,an inner joint at bottom.





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