Skip to Content
Pipe Stoppers

Inflatable Small Pipe Stoppers (2,5 bar)

General specifications

Compact pneumatic stoppers for small-bore pipework (DN 20 - 150). Reinforced NR/SBR rubber with Kevlar cord.

  • Size range20 — 1000 mm
  • Working pressure2,5 bar
  • Back pressure1,0 bar
  • MaterialNR + Kevlar (NBR, EPDM optional)
  • Air connectionQuick Coupling / Schrader
  • Working temp.−40 to 70 °C
Request a Quote

Description & features

Plugline Inflatable Pipe Stoppers are specifically designed for sealing small-diameter pipelines and tight spaces. This stopper is mostly used for pool leak detection and repair, and also by plumbers. Featuring a short and small design, these stoppers are available in both single and multi-size versions, providing a secure and adaptable seal to prevent leaks and manage flow during critical maintenance.

Key Features

  • Compact & Short Design: Specifically engineered for small-diameter pipes and restricted spaces, making them the go-to choice for tight plumbing configurations.
  • Reinforced rubber construction: size range DN20 — DN150, working pressure 2,5 bar, back pressure 1,0 bar, operating temperature −40 to 70 °C, Quick Coupling / Schrader air connection.
  • Single & Multi-Size Versions: Available in dedicated sizes for precision or multi-size ranges for maximum versatility on the job site.
  • Inflatable Sealing: Ensures a flexible, leak-free seal that adapts perfectly to the contours of the pipe wall.
  • High Durability: Constructed from robust materials that withstand high pressures and chemical exposure.
  • User-Friendly Setup: Quick to inflate and easy to install, reducing downtime and facilitating efficient fieldwork.

Advantages

  • Leak-Free Operation: Provides effective isolation and prevents fluid or gas leakage during testing and maintenance.
  • Specialized Utility: Highly effective for specialized tasks like pool pressure testing and residential leak detection.
  • Cost-Effective & Reusable: The durable, reusable design allows for multiple applications, offering excellent long-term value.
  • Safety & Reliability: Enhances worker safety by securely isolating pipeline sections even under high-pressure conditions.
  • Portable: Lightweight and compact, making them easy to transport for on-the-go repairs and emergency plumbing.

Application Areas

  • Pool Leak Detection & Repair: Essential for isolating lines in swimming pools to identify and fix leaks quickly.
  • Plumbing Services: Extensively used by plumbers for isolating sections in household and commercial water systems.
  • Sewer and Drain Systems: Ideal for sealing and testing in narrow sewage and drainage lines.
  • Water Supply Maintenance: Allows for precise flow control and leak testing in small-diameter water pipes.
  • Hydrostatic Pressure Testing: Sealing one or both ends of a pipe section to test for leaks under pressure.

Plugline Inflatable Pipe Stoppers provide a reliable, flexible, and professional-grade solution for sealing, isolating, and testing small-diameter pipelines across the plumbing, pool maintenance, and industrial sectors.

Recommended deployment procedure

Plugline Inflatable Pipe Stoppers are used for sealing, blocking and pressure testing pipework. Follow the procedure below for safe installation and removal.

01
Inspect

Verify each stopper for surface defects. Confirm reference matches purchase order. Pre-test in a clean environment to nominal 0.5 bar.

02
Position

Insert deflated. Place at least two pipe-diameters inside the bore. Secure the connector hose to the inflation valve.

03
Inflate

Inflate to nominal pressure indicated on the datasheet. Hold for 60 seconds and verify seal under audible test.

04
Test

Perform line test per EN 1610 or local code. Record drop, hold time, ambient temperature.

05
Recover

Deflate fully before withdrawal. Inspect for damage. Stopper may be reused for up to 200 cycles under nominal conditions.

Datasheets & catalogues

Download technical datasheets and product catalogues for the Inflatable Pipe Stoppers line.

Find your model

Enter your pipe diameter to highlight matching models in the table below.

Matching: All 40 models shown

Available models

33 active references.

QUICK GUIDEThe table below is a live RFQ builder — add models, tailor the options and send the list. Nothing is charged.
1FindFilter by pipe diameter or size type
2AddUse + / − to set the quantity of each model
3ConfigureSet the options per model in its row
4SendOpen your RFQ list and send it — we reply with a formal quotation
MATERIALNR/SBR + Kevlar standard for water & air · NBR for oils · EPDM for chemicals
AIR CONNECTIONQuick Coupling push-fit standard · Schrader Valve (tyre-type)
Set these per model with the Configure button in each row — defaults are pre-selected, and you can add several variants of the same model.
QuantityProduct CodeNominal size (mm)Min. inner dia.Max. inner dia.Working pressureBack pressureProduct diameterLengthWeightConfigure
0
ISPS202020mm/0,79"21mm/0,83"2,5bar/36,25psi1,0bar/14,50psi19mm/0,75"25mm/0,98"0,1kg/0,22lbs
0
ISPS252524mm/0,94"25mm/0,98"2,5bar/36,25psi1,0bar/14,50psi23mm/0,90"25mm/0,98"0,1kg/0,22lbs
0
ISPS303030mm/1,18"32mm/1,26"2,5bar/36,25psi1,0bar/14,50psi29mm/1,14"30mm/1,18"0,15kg/0,33lbs
0
ISPS404038mm/1,5"42mm/1,65"2,5bar/36,25psi1,0bar/14,50psi37mm/1,46"40mm/1,57"0,15kg/0,33lbs
0
ISPS505048mm/1,89"54mm/2,13"2,5bar/36,25psi1,0bar/14,50psi45mm/1,77"75mm/2,95"0,25kg/0,55lbs
0
ISPS606059mm/2,32"65mm/2,56"2,5bar/36,25psi1,0bar/14,50psi58mm/2,28"90mm/3,54"0,35kg/0,77lbs
0
ISPS757572mm/2,83"78mm/3,07"2,5bar/36,25psi1,0bar/14,50psi69mm/2,72"110mm/4,33"0,45kg/0,99lbs
0
ISPS10010090mm/3,54"105mm/4,13"2,5bar/36,25psi1,0bar/14,50psi88mm/3,46"150mm/5,91"0,6kg/1,32lbs
0
ISPS150150150mm/5,91"150mm/5,91"2,5bar/36,25psi1,0bar/14,50psi90mm/3,54"150mm/5,91"1,1kg/2,43lbs
0
ISPS200200200mm/7,87"200mm/7,87"2,5bar/36,25psi1,0bar/14,50psi138mm/5,43"200mm/7,87"1,6kg/3,53lbs
0
ISPS225225225mm/8,85"225mm/8,85"2,5bar/36,25psi1,0bar/14,50psi180mm/7,09"250mm/9,84"2,2kg/4,85lbs
0
ISPS250250250mm/9,84"250mm/9,84"2,5bar/36,25psi1,0bar/14,50psi180mm/7,09"250mm/9,84"2,2kg/4,85lbs
0
ISPS300300300mm/11,81"300mm/11,81"2,5bar/36,25psi1,0bar/14,50psi225mm/8,86"300mm/11,81"3,5kg/7,72lbs
0
ISPS350350350mm/13,77"350mm/13,77"2,5bar/36,25psi1,0bar/14,50psi225mm/8,86"300mm/11,81"3,7kg/8,16lbs
0
ISPS400400400mm/15,75"400mm/15,75"2,5bar/36,25psi1,0bar/14,50psi380mm/14,96"450mm/17,72"4,4kg/9,7lbs
0
ISPS500500500mm/19,69"500mm/19,69"2,5bar/36,25psi1,0bar/14,50psi485mm/19,09"450mm/17,72"5,5kg/12,13lbs
0
ISPS600600600mm/23,62"600mm/23,62"2,5bar/36,25psi1,0bar/14,50psi585mm/23,03"450mm/17,72"6,3kg/13,89lbs
0
ISPS800800800mm/31,5"800mm/31,5"2,5bar/36,25psi1,0bar/14,50psi780mm/30,71"800mm/31,5"25,0kg/55,12lbs
0
ISPS203020-3020mm/0,79"30mm/1,18"2,5bar/36,25psi1,0bar/14,50psi18mm/0,71"100mm/3,94"0,12kg/0,26lbs
0
ISPS304030-4030mm/1,18"40mm/1,57"2,5bar/36,25psi1,0bar/14,50psi29mm/1,14"100mm/3,94"0,16kg/0,35lbs
0
ISPS305030-5030mm/1,18"50mm/1,97"2,5bar/36,25psi1,0bar/14,50psi29mm/1,14"100mm/3,94"0,18kg/0,4lbs
0
ISPS405040-5040mm/1,57"50mm/1,97"2,5bar/36,25psi1,0bar/14,50psi38mm/1,50"100mm/3,94"0,18kg/0,4lbs
0
ISPS507550-7550mm/1,97"75mm/2,95"2,5bar/36,25psi1,0bar/14,50psi45mm/1,77"100mm/3,94"0,3kg/0,66lbs
0
ISPS7010070-10070mm/2,76"100mm/3,94"2,5bar/36,25psi1,0bar/14,50psi65mm/2,56"100mm/3,94"0,4kg/0,88lbs
0
ISPS100150100-15090mm/3,54"155mm/6,1"2,5bar/36,25psi1,0bar/14,50psi88mm/3,46"150mm/5,91"0,75kg/1,65lbs
0
ISPS150200150-200150mm/5,91"200mm/7,87"2,5bar/36,25psi1,0bar/14,50psi138mm/5,43"200mm/7,87"1,1kg/2,43lbs
0
ISPS200250200-250200mm/7,87"250mm/9,84"2,5bar/36,25psi1,0bar/14,50psi180mm/7,09"250mm/9,84"1,6kg/3,53lbs
0
ISPS250300250-300250mm/9,84"300mm/11,81"2,5bar/36,25psi1,0bar/14,50psi225mm/8,86"300mm/11,81"2,2kg/4,85lbs
0
ISPS300350300-350300mm/11,81"350mm/13,78"2,5bar/36,25psi1,0bar/14,50psi285mm/11,22"300mm/11,81"3,5kg/7,71lbs
0
ISPS400450400-450400mm/15,75"450mm/17,72"2,5bar/36,25psi1,0bar/14,50psi380mm/14,96"450mm/17,72"4,2kg/9,26lbs
0
ISPS500550500-550500mm/19,69"550mm/21,65"2,5bar/36,25psi1,0bar/14,50psi480mm/18,90"450mm/17,72"5,4kg/11,90lbs
0
ISPS600650600-650600mm/23,62"650mm/25,59"2,5bar/36,25psi1,0bar/14,50psi580mm/22,83"450mm/17,72"6,5kg/14,32lbs
0
ISPS8001000800-1000800mm/31,49"1000mm/39,37"2,5bar/36,25psi1,0bar/14,50psi780mm/30,71"800mm/31,50"27,0kg/59,50lbs
Specifying for a project

Send the spec. We send the datasheet.

DN, material, air connection, quantity. We come back inside 24 hours with the right reference, the test report on file, and stock confirmation from Istanbul.