Skip to content

Steel Expanding Pipe Stoppers for Purging and Pipe Blocking - 1.5" to 42"

SS1.5 Welding & Welder In Stock Fast Dispatch
Price per unit
£7.52 ex VAT
£9.02 inc VAT
Save %
Was £ ex VAT
  • Steel expandable pipe stoppers for purging and temporary pipe blocking applications
  • Wing nut compresses rubber tyre between two plates to create seal within pipe
  • Complies with British Standards BS8005 for low pressure testing and pipe sealing
  • Suitable for prolonged water immersion, elevated temperatures, and acidic or alkaline environments
Required
or
Secure Payment Methods:

Steel Expanding Pipe Stoppers – 1.5″ to 42″

Expandable test plugs designed for purging and general pipe blocking applications. Pipe stoppers, also known as drain plugs, are utilized to temporarily seal pipe ends or openings for various testing purposes.

These pipe stoppers primarily seal newly installed pipes and pipework systems under repair from water, gases, and foreign objects. The pipe stopper range offers multiple styles to accommodate different applications, with pipe sizes ranging from ½” to 72″. Specialized pipe stoppers for pressure testing are also available.

Operating Mechanism

The design features a central spindle or shaft fitted with two plates and a natural rubber tire (ring) positioned between them. A wing nut on the shaft moves the plates together, compressing the tire to create a seal within the pipe.

These stoppers are available with hollow shaft versions for standard hose connections or use with fixed or free nipple caps.

Expandable pipe stoppers are manufactured in three material types: nylon, aluminium, and steel.

Steel Plugs

Steel plugs are designed for demanding applications including prolonged water immersion, elevated temperature exposure, or contact with acidic or alkaline environments where nylon and aluminium plugs may prove unsuitable.

All plugs comply with British Standards BS8005 for low pressure testing and pipe sealing requirements.

These plugs are designed for demanding applications including prolonged water immersion, elevated temperature exposure, or contact with acidic or alkaline environments where nylon and aluminium plugs may prove unsuitable.

(Larger sizes available upon request – contact us for more information)

Datasheet

PART NO. PIPE SIZE INTERNAL NOMINAL DIAMETER PIPE SIZE (MM) WILL FIT PIPES WITH INTERNAL DIAMETER MINIMUM INSERTION INTO PIPE OVERALL LENGTH DIAMETER OF WATERWAY MAXIMUM ALLOWABLE BACK PRESSURE WEIGHT (LBS.) WEIGHT (KG)
SES1.5 1½” 40 mm 1.45 – 1.96″ 37 – 50 mm 31 mm 81.5 mm ½” 30 psi 1 lbs. 0.16 kg
SES2 2″ 50 mm 1.96 – 2.40″ 50 – 61 mm 32.7 mm 82.8 mm ½” 30 psi 1 lbs. 0.18 kg
SES2.5 2½” 65 mm 2.40 – 2.95″ 61 – 75 mm 33.2 mm 80.5 mm ½” 30 psi 1 lbs. 0.26 kg
SES3 3″ 75 mm 2.87 – 3.34″ 73 – 85 mm 34 mm 80.5 mm ½” 20 psi 1 lbs. 0.28 kg
SES3.5 3½” 89 mm 3.30 – 3.93″ 84 – 100 mm 41 mm 81 mm ½” 15 psi 1 lbs. 0.36 kg
SES4 4″ 100 mm 3.70 – 4.25″ 94 – 108 mm 37.5 mm 83.3 mm ½” 10 psi 1 lbs. 0.41 kg
SES4.5 4½” 114 mm 4.33 – 4.92″ 110 – 125 mm 40 mm 83.3 mm ½” 10 psi 1 lbs. 0.58 kg
SES5 5″ 125 mm 4.88 – 5.47″ 124 – 139 mm 37 mm 83.3 mm ½” 10 psi 1 lbs. 0.60 kg
SES6 6″ 150 mm 5.90 – 6.29″ 150 – 160 mm 39.7 mm 83.3 mm ½” 10 psi 2 lbs. 0.75 kg
SES7 7″ 175 mm 6.88 – 7.87″ 175 – 200 mm 46 mm 130 mm 1″ 7 psi 3 lbs. 1.56 kg
SES8 8″ 200 mm 7.67 – 8.46″ 195 – 215 mm 37 mm 130 mm 1″ 7 psi 3 lbs. 1.47 kg
SES9 9″ 225 mm 8.26 – 9.05″ 210 – 230 mm 58 mm 150 mm 1″ 7 psi 4 lbs. 1.93 kg
SES10 10″ 250 mm 9.64 – 10.23″ 245 – 260 mm 55 mm 150 mm 1″ 7 psi 6 lbs. 2.55 kg
SES12 12″ 300 mm 11.65 – 12.59″ 296 – 320 mm 85 mm 150 mm 1″ 7 psi 8 lbs. 3.72 kg
SES14 14″ 350 mm 13.38 – 15.15″ 340 – 385 mm 85 mm 210 mm 1″ 5 psi 14 lbs. 6.54 kg
SES15 15″ 375 mm 14.56 – 16.33″ 370 – 415 mm 100 mm 210 mm 1″ 5 psi 15 lbs. 7.00 kg
SES16 16″ 400 mm 15.35 – 16.92″ 390 – 430 mm 95 mm 210 mm 1″ 5 psi 19 lbs. 8.45 kg
SES18 18″ 450 mm 17.63 – 19.48″ 448 – 495 mm 100 mm 220 mm 1″ 5 psi 23 lbs. 10.6 kg
SES20 20″ 500 mm 19.29 – 20.86″ 490 – 530 mm 95 mm 126 mm 2″ 5 psi 23 lbs. 10.38 kg
SES21 21″ 525 mm 20.27 – 21.85″ 515 – 555 mm 95 mm 126 mm 2″ 3 psi 25 lbs. 11.28 kg
SES24 24″ 600 mm 23.22 – 24.80″ 590 – 630 mm 95 mm 126 mm 2″ 3 psi 34 lbs. 15.57 kg
SES28 28″ 700 mm 27.16 – 28.74″ 690 – 730 mm 95 mm 126 mm 2″ 3 psi 44 lbs. 19.90 kg
SES30 30″ 750 mm 29.13 – 30.70″ 740 – 780 mm 95 mm 126 mm 2″ 3 psi 55 lbs. 25.09 kg
SES32 32″ 800 mm 31.10 – 32.67″ 790 – 830 mm 95 mm 125 mm 2″ 3 psi 64 lbs. 28.90 kg
SES36 36″ 900 mm 35.03 – 36.61″ 890 – 930 mm 95 mm 126 mm 2″ 3 psi 77 lbs. 35.08 kg
Brand Welding & Welder
Size 1.5" ·
SKU Size Stock Status  
SS1.5 1 5 In Stock £7.52 ex VAT £9.02 inc VAT
SS2.5 2 5 In Stock £7.52 ex VAT £9.02 inc VAT
SS2 2 In Stock £7.52 ex VAT £9.02 inc VAT
SS3 3 In Stock £7.62 ex VAT £9.14 inc VAT
SS4.5 4 5 In Stock £18.44 ex VAT £22.13 inc VAT
SS4 4 In Stock £7.52 ex VAT £9.02 inc VAT
SS5 5 In Stock £15.82 ex VAT £18.98 inc VAT
SS6 6 In Stock £15.82 ex VAT £18.98 inc VAT
SS8 8 In Stock £26.20 ex VAT £31.44 inc VAT
SS10 10 In Stock £35.34 ex VAT £42.41 inc VAT
SS12 12 In Stock £47.94 ex VAT £57.53 inc VAT
SS14 14 In Stock £116.86 ex VAT £140.23 inc VAT
SS24 24 multilock In Stock £231.00 ex VAT £277.20 inc VAT
SES28 28 multilock In Stock £322.00 ex VAT £386.40 inc VAT
SS30 30 multilock In Stock £426.81 ex VAT £512.17 inc VAT
SES32 32 multilock In Stock
Price On Application
SS16 16 In Stock £132.42 ex VAT £158.90 inc VAT
SS18 18 In Stock £255.36 ex VAT £306.43 inc VAT
SES36 36 multilock In Stock
Price On Application
SS20 20 multilock In Stock £200.00 ex VAT £240.00 inc VAT
SS42 42 multilock In Stock
Price On Application

Download Datasheet

Download PDF

A carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.

Reviews

There are no reviews yet

Add a review
Steel Expanding Pipe Stoppers for Purging and Pipe Blocking - 1.5" to 42" Steel Expanding Pipe Stoppers for Purging and Pipe Blocking - 1.5" to 42"
Rating*
0/5
* Rating is required
Your review
* Review is required
Name
* Name is required
Add photos or video to your review
* Please confirm that you are not a robot

Get in touch

Have a question about this product? Our team of welding experts are here to help.

Price request

Please tell us how many you require and we will come back to you with our best price as soon as possible.

Phone

Mon–Fri, 9am–5pm

01752 936 028

Visit Us

12 Mary Seacole Road
The Millfields
Plymouth, Devon
PL1 3JY

Secure Payment
SSL Encrypted
Same Day Dispatch
Orders before 2pm
30-Day Returns
Terms & Conditions Apply
Finance Available
Spread the cost with PayPal
Expert Support
UK-based team
Price Match
On eligible products