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Union Jack

PTFE Joint Sleeves

PTFE Thin Wall Joint Sleeves

PTFE Rigid Joint Sleeves

PTFE Joint Adapters




PTFE Thin Wall Joint Sleeves

Thin Wall Joint

Thin Wall Joint Sleeves are inserted between standard taper ground glass joints to eliminate the use of grease and prevent sticking.  Sleeves have a wall thickness of about 0.05mm and will withstand low to medium vacuum.

Full Length "A" Type

Product

number

Joint Size
019.007 7/25
019.010 10/30
019.012 12/30
019.014.1 14/20
019.014 14/35
019.019.1 19/22
019.019 19/38
019.024 24/10
019.029 29/42
019.034 34/45
019.040 40/50
019.045 45/50
019.050 50/50
019.055 55/50
019.060 60/50
019.070 71/60

Medium Length "B" Type

Product

number

Joint Size
019.107 7/16
019.110 10/19
019.112 12/21
019.114 14/23
019.119 19/26
019.124 24/29
019.129 29/32
019.134 34/35
019.140 40/38
019.145 45/40
019.150 50/42
019.155 55/44
019.160 60/46
019.170 71/51

PTFE Rigid Joint Sleeves

Rigid Sleeves

Rigid Sleeves and Joint Adapters are grease-free, high vacuum seals for standard taper ground glass joints, with substantial shoulder for ease of handling and repeated use. High vacuum performance (leakage rate is less than 1 x 10-4  torr, litre, sec.-1) is attained using transverse sealing rings. Wall thickness of rigid sleeves is 0.5mm.

A COWIE®  Original Patent

Full Length "A" Type

Product

number

Joint Size
020.110 10/30
020.114.1 14/20
020.119.1 19/22
020.124 24/40
020.129 29/42
020.134 34/45
020.145 45/50
020.155 55/50

Medium Length "B" Type

Product 

number

Joint Size
020.010 10/19

020.014

14/23
020.019 19/26
020.024 24/29
020.029 29/32
020.034 34/35
020.040 40/38
020.045 45/40
020.055 55/44

PTFE Joint Adapters

Joint Adapter

Easy way to connect different sized tapers

Full Length "A" Type

Product

number

Socket 

Size

Cone Size
021.01014 10/30 14/35
021.01019 10/30 19/38
021.01419 14/35 19/38
021.01424 14/35 24/40
021.01924 19/38 24/40
021.01929 19/38 29/42
021.01934 19/38 34/45
021.02429 24/40 29/42
021.02434 24/40 34/45
021.02445 24/40 45/50
021.02934 29/42 34/45
021.02945 29/42 45/50
021.03445 34/45 45/50

Medium Length "B" Type

Product

number

Socket

Size

Cone Size
021.1014 10/19 14/23
021.1019 10/19 19/26
021.1419 14/23 19/26
021.1424 14/23 24/29
021.1924 19/26 24/29
021.1929 19/26 29/32
021.1934 19/26 34/35
021.2429 24/29 29/32
021.2434 24/29 34/35
021.2445 24/29 40/45
021.2934 29/32 34/35
021.2945 29/32 40/45
021.3445 34/35 40/45



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