Vetter Bypass Test Plug – Pneumatic Bypass Plug

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Vetter Bypass Test Plug – Pneumatic Bypass Plug

Vetter Bypass Test Plug – Pneumatic Bypass Plug is an inflatable test bag for fast, reliable sealing, testing, and bypassing pipelines. Lightweight and compact, it’s ideal for tight spaces and low-pressure work, with a built-in bypass for efficient flow control during maintenance or inspection.

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Description

The Vetter Bypass Test Plug – Pneumatic Bypass Plug is a compact and reliable inflatable test bag solution for sealing, testing, and bypassing pipe systems during maintenance or inspection work. Designed for use in pipelines from 1.57–11.81 in (40–300 mm) in diameter, each test bag features a built-in bypass to allow continued fluid flow during pipe repairs or testing. With lightweight construction and quick deployment, it’s ideal for tight spaces and low-pressure environments.

Inflatable Bypass Plugs

This plug features a built-in bypass (0.5–2 in / 13–50 mm, depending on model) for controlled flow during sealing. Suitable for pipe diameters from 1.57–11.81 in (40–300 mm) and rated up to 36 psi (2.5 bar), its compact form and integrated bypass allow effective section isolation without interrupting flow, as specified in product diagrams and technical data.

Available sizes:

  • PDK 4/7 — for pipe diameters: 1.57–2.76 in (40–70 mm)
  • PDK 7/10 — for pipe diameters: 2.76–3.94 in (70–100 mm)
  • PDK 10/15 — for pipe diameters: 3.94–5.91 in (100–150 mm)
  • PDK 15/20 — for pipe diameters: 5.91–7.87 in (150–200 mm)
  • PDK 20/30 — for pipe diameters: 7.87–11.81 in (200–300 mm)

Key Features

  • Inflatable Test Plug: Compact design with integrated bypass for testing and sealing pipelines.
  • Bypass Function: Allows controlled flow-through; bypass size ranges from 0.5–2 in (13–50 mm) depending on model.
  • Pipe Compatibility: Suitable for pipe diameters from 1.57–11.81 in (40–300 mm).
  • Low-Pressure Rated: This inflatable pipe plug with bypass is designed for systems up to 36 psi (2.5 bar) back pressure.
  • Multiple Sizes Available: Offered in various plug models to match specific pipe dimensions and requirements.

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Specifications

  • Pipe diameter range: 1.57–11.81 in (40–300 mm)
  • Bypass diameter: 0.5–2 in (13–50 mm), model-dependent
  • Total length: 9.84–16.14 in (250–410 mm)
  • Diameter: 1.46–7.28 in (37–185 mm)
  • Cylinder length: 6.10–9.84 in (155–250 mm)
  • Max back pressure: 36 psi (2.5 bar)
  • Weight: 0.88–9.92 lbs (0.4–4.5 kg)

Vetter Bypass Test Plug Applications

The Pneumatic bypass plug is used in a range of critical situations where small-diameter pipes need to be sealed while still allowing controlled flow. It’s commonly used in hazmat and emergency response to quickly seal leaking lines and safely redirect hazardous fluids or gases.

Mini Bypass Test Plug Datasheet PDF
Vetter Industrial Pneumatics Datasheet

About Vetter

Since 1964 Vetter has produced pneumatic rescue equipment and tents for fire services and medical services throughout the world. In doing so we always adhere to our general principle “Emergency Pneumatics” as well as our values. It is for you that we continually develop our products further – based on our decades of experience with pneumatic technology and the materials used for this for products like hazmat pipe leak sealing bags.

Vetter has always been very closely connected with the field of rescue since its founding in 1964 as a wholesale trading company for the fire service and civil defense. Here you are able to see the most significant milestones which helped rescue experience and technological know-how to flourish in order to be able to offer you perfected rescue products, Vetter pipe leak sealing bags and medical tents.

Need More Information?

For more information about the Vetter sewer bypass plug, contact us today!

Need reliable pipe sealing for maintenance or emergencies? Vetter Mini Pipe Sealing Bags – Pneumatic Sealing Bag provide flexible leak control and quick pipe isolation across a wide range of sizes.

Small Inflatable Bypass Pipe Plugs

A bypass plug is used to temporarily seal a pipe while still allowing fluid, air, or gas to flow through a built-in bypass line—making it essential for maintenance, pressure testing, or diverting flow in systems like municipal water lines, industrial pipelines, or hazmat operations. While the Cherne bypass plug is a common and reliable choice in the U.S., the Vetter mini test sealing bags offers superior performance in high-stakes environments. Designed for emergency response, it’s compact, built with reinforced materials, and trusted by hazmat teams and fire departments worldwide.

Additional information

Weight N/A
Dimensions N/A
Pipe Diameter

1.57–2.76 in (4–7 cm), 2.76–3.94 in (7–10 cm), 3.94–5.91 in (10–15 cm), 5.91–7.87 in (15–20 cm), 7.87–11.81 in (20–30 cm)

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