Stopcocks, Valves

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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Product Image of Safety vavle Safety vavle
Safety vavle Safety vavle
Item number: HI9903202
Brand: Hirschmann

In stock

$49.49
Product Image of Two-way valve, PVDF, Ø 5-7 mm, NW 4 mm, white, old No. 8607-6
Two-way valve, PVDF, Ø 5-7 mm, NW 4 mm, white, old No. 8607-6
Item number: BÜ8607-0060
Brand: Bürkle
$23.68
Product Image of Pinch cock 18/10 Steel, B = 40 mm, open on the side
Pinch cock 18/10 Steel, B = 40 mm, open on the side
Item number: BO12545
Brand: Bochem
$17.70
Product Image of Pinch cock Typ HOFFMANN, B=28 mm, A= 21 mm, with flap, heavy duty design
Pinch cock Typ HOFFMANN, B=28 mm, A= 21 mm, with flap, heavy duty design
Item number: BO12542
Brand: Bochem
$20.40
Product Image of Pinch cock Type HOFFMANN, B=28 mm, A= 21 mm, with flap
Pinch cock Type HOFFMANN, B=28 mm, A= 21 mm, with flap
Item number: BO12534
Brand: Bochem
$7.92
Product Image of RAVEqc Valve Bracket For attaching to Restek canister, not for Entech
RAVEqc Valve Bracket For attaching to Restek canister, not for Entech
Item number: RE27375
Brand: Restek
$10.00
Product Image of RAVEqc Male x 1/4'' Tube Short (1.23''), Requires a 1/4'' nut/ferrule set RE23161
RAVEqc Male x 1/4'' Tube Short (1.23''), Requires a 1/4'' nut/ferrule set RE23161
Item number: RE27374
Brand: Restek
$70.00
Product Image of RAVEqc Male x 1/4'' Tube Short (1.23''), Requires a 1/4'' nut/ferrule set RE23161
RAVEqc Male x 1/4'' Tube Short (1.23''), Requires a 1/4'' nut/ferrule set RE23161
Item number: RE27373
Brand: Restek
$50.00
Product Image of RAVEqc Male x 1/4'' Tube Extended(1.58'') Siltek Treated, Requires a 1/4'' nut/ferrule set RE23161
RAVEqc Male x 1/4'' Tube Extended(1.58'') Siltek Treated, Requires a 1/4'' nut/ferrule set RE23161
Item number: RE27372
Brand: Restek
$70.00
Product Image of RAVEqc Male x 1/4'' Tube Extended (1.58'') , Requires a 1/4'' nut/ferrule set RE23161
RAVEqc Male x 1/4'' Tube Extended (1.58'') , Requires a 1/4'' nut/ferrule set RE23161
Item number: RE27371
Brand: Restek
$52.00
Product Image of RAVEqc Female x 1/4'' Compression Siltek treated
RAVEqc Female x 1/4'' Compression Siltek treated
Item number: RE27370
Brand: Restek
$132.00
Product Image of RAVEqc Female x 1/4'' Compression
RAVEqc Female x 1/4'' Compression
Item number: RE27369
Brand: Restek
$111.00
Product Image of RAVEqc Male x 1/4'' Compression Siltek Treated
RAVEqc Male x 1/4'' Compression Siltek Treated
Item number: RE27368
Brand: Restek
$85.00
Product Image of RAVEqc Male x 1/4'' Compression
RAVEqc Male x 1/4'' Compression
Item number: RE27367
Brand: Restek
$67.00
Product Image of RAVEqc Female x 1/4'' NPT Siltek Treated
RAVEqc Female x 1/4'' NPT Siltek Treated
Item number: RE27366
Brand: Restek
$132.00
Product Image of RAVEqc Female x 1/4'' NPT
RAVEqc Female x 1/4'' NPT
Item number: RE27365
Brand: Restek
$111.00
Product Image of Recirculation valve HF Recirculation valve HF
Recirculation valve HF Recirculation valve HF
Item number: HI9316626
Brand: Hirschmann
$102.19
Product Image of Discharge valve HF Discharge valve HF
Discharge valve HF Discharge valve HF
Item number: HI9316528
Brand: Hirschmann
$102.19
Product Image of Discharge valve HF Discharge valve HF
Discharge valve HF Discharge valve HF
Item number: HI9316028
Brand: Hirschmann
$108.37
Product Image of Valve for Varitips S 100 pcs.
Valve for Varitips S 100 pcs.
Item number: EP0030050541
Brand: Eppendorf
$147.20
Product Image of Draincock for 5- and 10-l-bottle (acc./aspirator bottle)
Draincock for 5- and 10-l-bottle (acc./aspirator bottle)
Item number: DU241470409
Brand: Duran Group
$96.58
Product Image of Draincock for 1- and 2-l-bottle (acc./aspirator bottle)
Draincock for 1- and 2-l-bottle (acc./aspirator bottle)
Item number: DU241470306
Brand: Duran Group
$99.77
Product Image of DURAN® Reduction and expansion adapter, Socket size 24/29, Cone size 19/26
DURAN® Reduction and expansion adapter, Socket size 24/29, Cone size 19/26
Item number: DU241143306
Brand: Duran Group
$43.89
Product Image of DURAN® Reduction and expansion adapter, Socket size 19/26, Cone size 24/29
DURAN® Reduction and expansion adapter, Socket size 19/26, Cone size 24/29
Item number: DU241142807
Brand: Duran Group
$33.54
Product Image of Non-return valve, conic. nozzle Ø 10-14mm, printed, old No. 8714-11014
Non-return valve, conic. nozzle Ø 10-14mm, printed, old No. 8714-11014
Item number: BÜ8714-1010
Brand: Bürkle
$7.84
Product Image of Non-return valve, conic. nozzle, Ø 8-10mm, printed, old No. 8714-10810
Non-return valve, conic. nozzle, Ø 8-10mm, printed, old No. 8714-10810
Item number: BÜ8714-1008
Brand: Bürkle
$6.40
Product Image of Non-return valve, conical nozzle, Ø6-8mm, printed, old No. 8714-10608
Non-return valve, conical nozzle, Ø6-8mm, printed, old No. 8714-10608
Item number: BÜ8714-1006
Brand: Bürkle
$6.40
Product Image of Non-return valve, con. nozzle, Ø 10-14mm, embossed, old No. 8714-1014
Non-return valve, con. nozzle, Ø 10-14mm, embossed, old No. 8714-1014
Item number: BÜ8714-0100
Brand: Bürkle
$7.30
Product Image of Non-return valve, con. nozzle, Ø 8-10 mm, embossed, old No. 8714-0810
Non-return valve, con. nozzle, Ø 8-10 mm, embossed, old No. 8714-0810
Item number: BÜ8714-0080
Brand: Bürkle
$5.86
Product Image of Non-return valve, conic. nozzle, Ø 6-8mm, embossed, old No. 8714-0608
Non-return valve, conic. nozzle, Ø 6-8mm, embossed, old No. 8714-0608
Item number: BÜ8714-0060
Brand: Bürkle
$5.86
Product Image of PTFE-valve, two-way, Ø 10 mm, NW 4mm, autoklav.
PTFE-valve, two-way, Ø 10 mm, NW 4mm, autoklav.
Item number: BÜ8610-0015
Brand: Bürkle
$116.04
Product Image of PTFE-valve, two-way, Ø 6,8 mm, NW 3 mm, autoklav.
PTFE-valve, two-way, Ø 6,8 mm, NW 3 mm, autoklav.
Item number: BÜ8610-0012
Brand: Bürkle
$86.78
Product Image of PTFE-valve, two-way, Ø 4,5 mm, NW 2mm, autoklav.
PTFE-valve, two-way, Ø 4,5 mm, NW 2mm, autoklav.
Item number: BÜ8610-0010
Brand: Bürkle
$86.78
Product Image of PTFE-valve, three-way, Ø 10 mm, NW 4mm, autoklav.
PTFE-valve, three-way, Ø 10 mm, NW 4mm, autoklav.
Item number: BÜ8610-0006
Brand: Bürkle
$187.48
Product Image of PTFE-valve, three-way, Ø 6,8 mm, NW 3 mm, autoklav.
PTFE-valve, three-way, Ø 6,8 mm, NW 3 mm, autoklav.
Item number: BÜ8610-0003
Brand: Bürkle
$144.64
Product Image of PTFE-valve, three-way, Ø 4,5 mm, NW 2mm, autoklav.
PTFE-valve, three-way, Ø 4,5 mm, NW 2mm, autoklav.
Item number: BÜ8610-0001
Brand: Bürkle
$144.64
Product Image of Three-way valve, PVDF, Ø 11-13 mm, NW 8 mm, white
Three-way valve, PVDF, Ø 11-13 mm, NW 8 mm, white
Item number: BÜ8608-0120
Brand: Bürkle
$44.78
Product Image of Three-way valve, PVDF, Ø 9-11 mm, NW 8 mm, white, old No. 8608-10
Three-way valve, PVDF, Ø 9-11 mm, NW 8 mm, white, old No. 8608-10
Item number: BÜ8608-0100
Brand: Bürkle
$44.78
Product Image of Three-way valve, PVDF, Ø 7-9 mm, NW 6 mm, white, old No. 8608-8
Three-way valve, PVDF, Ø 7-9 mm, NW 6 mm, white, old No. 8608-8
Item number: BÜ8608-0080
Brand: Bürkle
$41.60
Product Image of Three-way valve, PVDF, Ø 5-7 mm, NW 4 mm, white, old No. 8608-6
Three-way valve, PVDF, Ø 5-7 mm, NW 4 mm, white, old No. 8608-6
Item number: BÜ8608-0060
Brand: Bürkle
$36.76
Product Image of Two-way valve, PVDF, Ø 11-13 mm, NW 8 mm, white
Two-way valve, PVDF, Ø 11-13 mm, NW 8 mm, white
Item number: BÜ8607-0120
Brand: Bürkle
$32.02
Product Image of Two-way valve, PVDF, Ø 9-11 mm, NW 8 mm, white, old No. 8607-10
Two-way valve, PVDF, Ø 9-11 mm, NW 8 mm, white, old No. 8607-10
Item number: BÜ8607-0100
Brand: Bürkle
$32.02
Product Image of Two-way valve, PVDF, Ø 7-9 mm, NW 6 mm, white, old No. 8607-8
Two-way valve, PVDF, Ø 7-9 mm, NW 6 mm, white, old No. 8607-8
Item number: BÜ8607-0080
Brand: Bürkle
$28.00
Product Image of Three-way valve, PP/PE, Ø11-13mm, NW 8mm,red/white
Three-way valve, PP/PE, Ø11-13mm, NW 8mm,red/white
Item number: BÜ8606-0120
Brand: Bürkle
$31.80
Product Image of Three-way valve, PP/PE, Ø9-11mm, NW 8mm, red/white, old No. 8606-10
Three-way valve, PP/PE, Ø9-11mm, NW 8mm, red/white, old No. 8606-10
Item number: BÜ8606-0100
Brand: Bürkle
$31.80
Product Image of Three-way valve, PP/PE, Ø 7-9mm, NW 6mm, red/white, old No. 8606-8
Three-way valve, PP/PE, Ø 7-9mm, NW 6mm, red/white, old No. 8606-8
Item number: BÜ8606-0080
Brand: Bürkle
$27.70
Product Image of Three-way valve, PP/PE, Ø 5-7mm, NW 4mm, red/white, old No. 8606-6
Three-way valve, PP/PE, Ø 5-7mm, NW 4mm, red/white, old No. 8606-6
Item number: BÜ8606-0060
Brand: Bürkle
$23.48
Product Image of Two-way valve, PP/PE, Ø 11-13mm, NW 8mm, red/white
Two-way valve, PP/PE, Ø 11-13mm, NW 8mm, red/white
Item number: BÜ8605-0120
Brand: Bürkle
$18.64
Product Image of Two-way valve, PP/PE, Ø 9-11 mm, NW 8mm, red/white, old No. 8605-10
Two-way valve, PP/PE, Ø 9-11 mm, NW 8mm, red/white, old No. 8605-10
Item number: BÜ8605-0100
Brand: Bürkle
$18.64
Product Image of Two-way valve, PP/PE, Ø 7-9 mm, NW 6 mm, red/white, old No. 8605-8
Two-way valve, PP/PE, Ø 7-9 mm, NW 6 mm, red/white, old No. 8605-8
Item number: BÜ8605-0080
Brand: Bürkle
$16.26

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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