Mobile Phase Bottle Safety Caps
Laboratory safety is very important to Analytical Sales and Services, Inc. Our mobile phase screw caps are made from high quality polypropylene
with machined PTFE centers. Tubing lines are held in place with secure finger tight fittings, and will no longer become tangled upon removal
of the cap because of the 2-part design (threaded portion spins independently of the center). There is an additional O-ring between the
Teflon center and cap surface to ensure no evaporation. All mobile phase screw caps come with replaceable air check valves. Safety caps
are available in GL38, GL45, S55, and B83 threads.
Call us to design your custom mobile phase cap, at no extra charge.
Call us to design your custom mobile phase cap, at no extra charge.
 | Diagram: How Mobile Phase Safety Caps Function
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 | Container Thread Dimensions Guide
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| Diagram: How Mobile Phase Safety Caps Function Expand
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| Container Thread Dimensions Guide
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Container Thread
Dimensions Guide
Dimensions Guide
| Cap | AD (mm) | Note |
|---|---|---|
| GL32 | 31.5 | |
| GL38 | 37.5 | for Wheaton and Nalgene bottles |
| GL40 | 40 | for Merck bottles |
| GL45 | 44.5 | |
| B50 | 50 | for space saving can |
| B51 | 48 | |
| B53 | 53 | for Nalgene bottles and cans |
| S55 | 53.5 | |
| S60 | 59 | |
| B63 | 62 | for Nalgene bottles and cans |
| S65 | 64.5 | for KAUTEX cans |
| S71 | 70 | |
| GL80 | 80 | |
| B83 | 88 | for Nalgene bottles and cans (approx. 13mm thread lead) |
| S90 | 88 | |
| S95 | 94 |
Note: All dimensions could very +/- 0.5mm depending on the manufacturer.
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GL45 Mobile Phase Caps
We offer a wide range of options for GL45 caps, including custom port sizes for various sized tubing and several color options so that you can easily identify your solvent...
GL38 Mobile Phase Caps
Our GL38 mobile phase safety caps are direct replacements to solvent manufacturer’s amber solvent bottle caps, and require no additional adapters. Available in a wide...
B83 Mobile Phase Caps
As it is with our other mobile phase safety caps, our B83 caps are available in custom formats, per your request!
S55 Mobile Phase Caps
Our S55 mobile phase safety caps for large solvent containers are also made for large waste containers. They are available with ports for 1/16”, 1/8” and 1/4” OD...