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Here you find stopcocks and valves in several forms and with diverse characteristics: We offer e. g. clearance valves or one-way-valves as well as high vacuum or PTFE valves. Due to their fine thread, high vacuum valves are suitable for exact dosing. PTFE valves enable greaseless analyses. Stopcocks have several outflows: one-way, two-way or three-way and are also available with hose connectors. We stock products of numerous renowned manufacturers, e.g. stopcocks made of PTFE by Bohlender or made of borosilicate glass by Duran.

Hier you find further information on 2- and 3-Way-Stopcocks

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Stopcocks, Valves

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  1. A.I.T. France

    Smart healthy caps GL45, 1 outlet and 1 air check valve, kit with 4 SHC-1

    Regular Price: $318.12

    Special Price $302.21

    sku: AISHC-1-KIT4
  2. A.I.T. France

    Smart healthy caps GL45, 2 outlet and 1 air check valve , kit with 4 SHC-2

    Regular Price: $318.12

    Special Price $302.21

    sku: AISHC-2-KIT4
  3. A.I.T. France

    Smart healthy caps GL45, 3 outlet and 1 air check valve , kit with 4 SHC-3

    Regular Price: $318.12

    Special Price $302.21

    sku: AISHC-3-KIT4
  4. A.I.T. France

    Air CHECK VALVE for amines and strong polar solvants vapors, 1 pc/PAK

    Regular Price: $25.62

    Special Price $24.34

    sku: AISHC-SV-AB
  5. A.I.T. France

    Air CHECK VALVE for amines and strong polar solvants vapors, 10pc/PAK

    Regular Price: $234.85

    Special Price $223.11

    sku: AISHC-SV-AB10
  6. A.I.T. France

    Air CHECK VALVE for amines and strong polar solvants vapors, 50pc/PAK

    Regular Price: $1,014.13

    Special Price $963.42

    sku: AISHC-SV-AB50
  7. A.I.T. France

    AIR CHECK VALVE for preparative HPLC

    Regular Price: $40.57

    Special Price $38.54

    sku: AISHC-SV-PREP
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Stopcocks by Bohlender

BOLA by Bohlender offers a large assortment of stopcocks for various needs. BOLA 2-way and 3-way stopcocks made of PTFE are ideal for distributing liquids or gases and enable a quick and easy disconnection of flow. Temperature resistance from -200°C to +250°C, chemical resistance: +++ universal, pressure: 2 bar.

BOLA Stopcocks with Hose Connectors

We offer 2-way stopcocks with straight bore and two hose connectors or 3-way stopcocks with T-shaped bore and three hose connectors for connecting elastic tubing (e.g. Viton®, Tygon®, silicone). Conical stopcock plug, tightness is increased by turning the nut on the lower side. 3-way stopcock plug with T-shaped mark of flow direction. Universal chemical resistance, the flowing product is only exposed to PTFE.

Type

Bore shape stopcock

Bore dia.
mm

For tubing I.D.
mm

O.D. of connectors
mm

Outer dimensions
L x D x H mm

Cat.-No.
2-Ways I 1,5 4 4,5 60 x 22 x 53 BLE65003
2-Ways I 3,0 6 6,8 60 x 22 x 53 BLE65006
2-Ways I 4,0 8 9,0 60 x 22 x 53 BLE65009
2-Ways I 6,0 10 11,0 85 x 35 x 69 BLE65012
3-Ways T 1,0 4 4,5 60 x 41 x 53 BLE65050
3-Ways T 2,0 6 6,8 60 x 41 x 53 BLE65053
3-Ways T 3,0 8 9,0 60 x 41 x 53 BLE65056
3-Ways T 4,0 10 11,0 85 x 60 x 69 BLE65059

 

2-Way Stopcocks and 3-Way-Stopcocks

2-way stopcocks with straight bore and two connections or 3-way stopcocks with T-shaped bore and three connections, with nuts made of glass-fibre reinforced PTFE for connecting tubing or tube are available. Conical stopcock plug, tightness is increased by turning the nut on the lower side. 3-way stopcock plug with T-shaped mark of flow direction. Universal chemical resistance, the flowing product is only exposed to PTFE.

Type

Bore shape stopcock

Bore dia.
mm

For tubing O.D. mm

Thread
M

Outer dimensions
L x D x H mm

Cat.-No.
2-Ways I 2 4 14 x 2 59 x 22 x 53 BLE65202
2-Ways I 2 6 14 x 2 59 x 22 x 53 BLE65204
2-Ways I 5 8 18 x 2 74 x 35 x 69 BLE65206
2-Ways I 5 10 18 x 2 74 x 35 x 69 BLE65208
3-Ways T 1,5 4 14 x 2 59 x 41 x 53 BLE65402
3-Ways T 1,5 6 14 x 2 59 x 41 x 53 BLE65404
3-Ways T 3,5 8 18 x 2 74 x 54 x 69 BLE65406
3-Ways T 3,5 10 18 x 2 74 x 54 x 69 BLE65408

 

Duran Stopcocks & Valves

The manufacturer Duran is well-known for high quality lab supply made of borosilicate glass. This extraordinary robust and temperature resistant material is a relevant alternative in the manufacturing of stopcocks. Duran's stopcock range stands out thanks to high manufacturing accuracy and very good ground joint quality. This ensures you have highly effective sealing and interchangeability. For use at higher temperatures stopcocks with glass key are preferable. Stopcocks with PTFE keys enable grease-free working. Alongside standard stopcocks, Duran also offers high-vacuum adapted PRODURAN® valves.

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