28mm Head Vacuum Sampling Pumps

28mm Vacuum Sampling Pumps – VSPG, VACFAST & Easy Vac (Thief Pumps for Fluid Analysis)

Product Overview

Our 28mm Vacuum Sampling Pumps offer a reliable solution for drawing fluid samples directly from machinery, gearboxes, and storage vessels . Designed for industrial fluid extraction and condition monitoring, these manual thief pumps pull fluids straight into sample bottles without touching the pump mechanism, eliminating cross-contamination risk .

The 28mm head size provides exceptional operational flexibility: it fits standard 28mm bottle threads natively while accepting select pump adapters (such as 38mm) to accommodate different bottle sizes .

Select Your Pump Model

Choose the body construction that best matches your field or lab environment:

• VSPG 28mm (Base Model – Lightweight Polymer Construction): A lightweight entry option built with a glass-reinforced polyamide (GPA) cylinder, polyacetal (POM) head, and nitrile O-rings (Viton available) . Ideal for standard routine sampling .
• VACFAST 28mm (Mid-Range Model – Brushed Aluminium Body): Features a durable brushed aluminium casing with GPA internal threading and POM head components . Built to handle rougher field conditions while maintaining precise vacuum suction .
• Easy Vac 28mm (Premium Model – Full Metal Casing & Nylon Head): Built for demanding applications . Constructed with an all-aluminium case and piston rod paired with a high-durability yellow Nylon head, offering excellent resistance to greases, oils, and alcohols .

Key Features & Technical Specs

• Adapter Compatibility: Native 28mm head, with dedicated adapter options available (including 38mm) for expanding bottle compatibility .
• Zero-Contamination Design: Media flows directly into the sample bottle via disposable tubing, keeping the cylinder clean between samples .
• Seal Configuration: Fitted with standard Nitrile O-rings; optional Viton seals available for aggressive fluids or high-temperature environments .