Gastec DTP-2-20 Rubber Caps

Gastec DTP-2-20 Rubber Caps are specialized protective accessories designed to ensure the pneumatic integrity and measurement accuracy of Gastec gas sampling systems by providing an airtight seal for detector tube tips. Specifically engineered for use with Gastec Model GV-100 and GV-110 piston-style sampling pumps, these durable rubber caps serve as a critical maintenance component for performing mandatory leak tests and protecting the pump’s internal orifice from debris. By maintaining a vacuum-tight environment during the sampling process, the DTP-2-20 caps prevent ambient air ingress, thereby guaranteeing that the precise volume of gas is drawn through the detector tube for highly accurate concentration readings.

Description of Gastec DTP-2-20 Rubber Caps

GASTEC holds this corporate creed of safety and development in high regard, as it strives to grow while always putting customer safety first. Despite the constant evolution of technology, one demand for our products remains constant: the demand for customer safety. Every time we contribute to customer safety, we are presented with an opportunity to further develop.

Safety caps for tubes

As an additional safety precaution, reusable rubber caps can be fastened to the detector tubes’ damaged edges. The largest detector tubes (with an outside diameter of 7mm) can be used with blue caps, whereas all other tubes can be used with pink ones. There are twenty caps in one (1) package.

No.DTP-1-20(blue)
large-diametre tubes for tube nos. 1HH, 2HT, 2HH, 4HT, 31B (blue)
No.DTP-2-20(pink)
for all types of gas detector tubes except the above

Features Of Gastec DTP-2-20 Rubber Caps

Vacuum-Tight Sealing: Engineered to provide a 100% airtight seal over the pump inlet, which is critical for performing accurate pre-operation leak tests.
High-Elasticity Material: Manufactured from a durable, high-grade synthetic rubber that can stretch repeatedly over the pump tip without losing its shape or tearing.
Precision Fit: Specifically sized for the GV-100 and GV-110 gas sampling pumps, ensuring a snug fit that prevents any ambient air ingress during high-vacuum strokes.
Contamination Barrier: Acts as a protective shield for the pump’s internal orifice, preventing dust, moisture, and debris from entering the high-precision piston chamber.
Chemical Resistance: Designed to withstand exposure to a wide range of industrial gases and vapors without degrading, ensuring long-term reliability in the field.

Application Of Gastec DTP-2-20 Rubber Caps

Mandatory Leak Testing: Used before every sampling session to seal the pump inlet and verify that the piston is vacuum-tight, ensuring no air leaks interfere with the reading.
Orifice Protection: Serves as a dust cap for the gas sampling pump when not in use, preventing particulate matter or moisture from clogging the high-precision internal orifice.
Volumetric Accuracy Assurance: By providing an airtight connection between the detector tube and the pump, these caps guarantee that the exact volume of air (e.g., 50ml or 100ml) is drawn through the chemical reagents.
Field Maintenance & Repair: Replaces worn or cracked inlet seals on Gastec GV-100 and GV-110 pumps to restore optimal suction performance in harsh industrial environments.
Confined Space Entry Safety: Ensures the reliability of gas concentration data used to clear technicians for entry into potentially hazardous areas like sewers, tanks, or silos.

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