Stopcocks and Valves

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 Nitrogen tubes (Schlenk-tubes), DURAN® tubing

Lenz

Made of DURAN ® tubing. With conical joint and PTFE stopcock....

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 Safety / overpressure valves, with spring loaded spherical ground joint seal

QVF Labor

When laboratory ground devices are used under vacuum or/and slight overpressure, the use of this combined overpressure safety valve can be recommended. These valves act as immediately closing safety valve under vacuum and they allow under overpressure the visual control of the bubble formation in the blocking liquid. The real sealing is effected by a special designed spherical ground joint (cup and ball) on which an adjustable spring power acts. It is supported by a free to chose blocking liquid which should be higher viscous for vacuum operations. The sealed climbing tube at the spherical ground cup serves as a guide and prevents that the liquid climbs back into the apparatus....

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 Accessories for burette tubes

BRAND

For burette Economy....

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 Burette stopcocks, borosilicate glass 3.3

Lenz

Stopcock with facetted tip, with solid NS plug, PTFE plug or PTFE spindle, material: borosilicate glass 3.3....

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 Two-way stopcocks with PTFE plug, borosilicate glass 3.3

Lenz

With PTFE key and screwthread retaining device. With two oblique bores. Leakage rate acc. to DIN 12540-1....

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 Vacuum stopcocks, one-way, straight and parallel, borosilicate glass 3.3

Lenz

With straight side arms or parallel side arms and hollow NS glass plug.
Leakage rate acc. to DIN 12540-1....

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 Vacuum-stopcocks, one-way, right-angled, borosilicate glass 3.3

Lenz

One-way, acc. to DIN 12545 / DIN 12554 and in addition to DIN standard, with right-angled side arm and hollow glass plug. Leakage rate to DIN 12540-1....

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 Accessories for Rotary Evaporators Hei-VAP Series

Heidolph Instruments

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Laboratory valves,PUNDURA-NOVA-DURAN®,90° bore 6,0 mm

DWK
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PO number Package size Price per package    

1

 9117014

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MININERT VALVE, SCREW THREAD 24-400, VICI

Valco

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PO number Package size Price per package    
724PS614163

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Overpressure/check valve NS 14/23, GL18, gauge pressure 0.1 bar with disposable tap

QVF Labor
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PO number Package size Price per package    
6275026

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Product discontinued. Successor product: 6238737

Stopcocks, Straight Bore with Solid Glass Plug, Capillary Side Arms, NS 12,5 Bore mm 1,5

Lenz

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9115612

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Laboratory valves,PUNDURA-NOVA-DURAN®,90° bore 2,5 mm

DWK
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1

 9117012

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Laboratory valves,PUNDURA-NOVA-DURAN®,90° bore 4,0 mm

DWK
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 9117013

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Exhaust filter L, V3.0, economy package with splash guard and change indicator, service life 12 months, pack of 2

SCAT

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1

 4681463

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stopcocks PP and HDPE outside diam 13 mm, bore 10,9 mm

Kartell

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6902443

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Exhaust filter M, V3.0, economy package with splash guard and change label, service life 6 months, pack of 2

SCAT

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1

 4681459

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stopcocks PP and HDPE outside diam 10 mm, bore 7 mm

Kartell

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6902442

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Vacuum Retention Valve

Kartell

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6242340

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STOPCOCK FOR CANISTER 5 LITER

HARTMANN

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7659198

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Product scheduled for discontinuation

***Custom made product***

Lenz

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6206678

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0.5 bar fixed pressure valve, stainless steel

Dräger Safety

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7663952

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1-way stopcock 1x F-Luer to M-Luer, nylon body, HDPE plug, pack of 5

Kimble Kontes

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6322119

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1-way stopcock, PC, f-Luer to m-Luer,nylon valve, HDPE&PE plug,pack of 10

Kimble Kontes

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6282012

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1/4 FUNF Valved Panel Mount INST PMCD48042812

Colder Products Company E

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6490254

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