High Expansion Inflatable Pipe Plugs

Light-duty high expansion inflatable pipe plugs for suitable debris exclusion, temporary closures and low-pressure applications. A flexible bladder with a ballistic nylon cover helps installation through restricted openings. Select the model for the bore, access and service conditions.

Justram high expansion inflatable pipe plugs combine a flexible bladder with a ballistic nylon outer cover for abrasion resistance. These light-duty LD-series bladders suit selected debris-exclusion, pipe-end protection and low-pressure stopping applications where restricted access makes installation difficult.

Size chart

Item Number	Diameter. Max	Dia. Deflated	Inflation Press. Max	Back Press. / Head Max	Port, Inflation	Length Deflated	Shipping Wt.
LD-002	2" (51mm)	1" (25mm)	30 psi	15 psi / 35'	1ft Hose with Schrader Tire Valve	7" (178mm)	2 Lb (0.91 Kg)
LD-003	3" (76mm)	1" (25mm)	30 psi	15 psi / 35'	1ft Hose with Schrader Tire Valve	9" (229mm)	2 Lb (0.91 Kg)
LD-004	4" (102mm)	1.25" (32mm)	30 psi	15 psi / 35'	1ft Hose with Schrader Tire Valve	10" (254mm)	2 Lb (0.91 Kg)
LD-005	5" (127mm)	1.5" (38mm)	30 psi	15 psi / 35'	Schrader Tire Valve	15" (381mm)	2 Lbs (0.91 Kg)
LD-006	6" (152mm)	1.65" (42mm)	30 psi	15 psi / 35'	Schrader Tire Valve	17" (432mm)	2 Lb (0.9 Kg)
LD-008	8" (203mm)	2" (51mm)	30 psi	15 psi / 35'	Schrader Tire Valve	21" (534mm)	3 Lb (1.36 Kg)
LD-010	10" (254mm)	2" (51mm)	30 psi	15 psi / 35'	Schrader Tire Valve	31" (787mm)	3 Lb (1.36 Kg)
LD-012	12" (305mm)	2.5" (64mm)	25 psi	12.5 psi / 29'	Schrader Tire Valve	30" (762mm)	3 Lb (1.36 Kg)
LD-014	14" (356mm)	2.5" (64mm)	25 psi	12.5 psi / 29'	1" MNPT to 1/4" QD Plug	35" (889mm)	5 Lb (2.27 Kg)
LD-015	15" (381mm)	2.5" (64mm)	25 psi	12.5 psi / 29'	1" MNPT to 1/4" QD Plug	47" (1193mm)	5 Lb (2.27 Kg)
LD-016	16" (406mm)	3" (76mm)	25 psi	12.5 psi / 29'	1" MNPT to 1/4" QD Plug	39" (991mm)	6 Lb (2.72 Kg)
LD-018	18" (457mm)	3.5" (89mm)	22 psi	11 psi / 25'	2" MNPT to 1/2" QD Plug	45" (1143mm)	7 Lb (3.18 Kg)
LD-020	20" (508mm)	4" (102mm)	20 psi	10 psi / 23'	2" MNPT to 1/2" QD Plug	56" (1422mm)	7 Lb (3.18 Kg)
LD-024	24" (610mm)	4" (102mm)	10 psi	5 psi / 11'	2" MNPT to 1/2" QD Plug	71.1" (1806mm)	10 Lb (4.54 Kg)
LD-025	25" (635mm)	4" (102mm)	10 psi	5 psi / 11'	2" MNPT to 1/2" QD Plug	73" (1854mm)	10 Lb (4.54 Kg)
LD-026	26" (660mm)	4.5" (114mm)	10 psi	5 psi / 11'	2" MNPT to 1/2" QD Plug	63" (1601mm)	10 Lb (4.54 Kg)
LD-030	30" (762mm)	5" (127mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	94" (2387mm)	12 Lb (5.44 Kg)
LD-032	32" (813mm)	5" (127mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	76" (1931mm)	13 Lb (5.90 Kg)
LD-033	33" (838mm)	5" (127mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	79" (2007mm)	14 Lb (6.35 Kg)
LD-034	34" (864mm)	5" (127mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	81" (2058mm)	15 Lb (6.80 Kg)
LD-036	36" (914mm)	5" (127mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	103.1" (2619mm)	20 Lb (9.07 Kg)
LD-042	42" (1067mm)	6" (152mm)	9 psi	4.5 psi / 10'	2" MNPT to 1/2" QD Plug	99" (2515mm)	17 Lb (7.71 Kg)
LD-044	44" (1118mm)	6" (152mm)	7 psi	3.5 psi / 8'	2" MNPT to 1/2" QD Plug	103" (2617mm)	18 Lb (8.16 Kg)
LD-045	45" (1143mm)	6" (152mm)	6.5 psi	3.25 psi / 7.5'	2" MNPT to 1/2" QD Plug	136" (3454mm)	20 Lb (9.07 Kg)
LD-048	48" (1219mm)	6" (152mm)	6.5 psi	3.25 psi / 7.5'	2" MNPT to 1/2" QD Plug	112" (2845mm)	20 Lb (9.07 Kg)
LD-050	50" (1270mm)	6" (152mm)	6.5 psi	3.25 psi / 7.5'	2" MNPT to 1/2" QD Plug	143" (3632mm)	20 Lb (9.07 Kg)
LD-054	54" (1372mm)	6" (152mm)	5 psi	2.5 psi / 5.8'	2" MNPT to 1/2" QD Plug	153" (3886mm)	23 Lb (10.43 Kg)
LD-055	55" (1397mm)	6" (152mm)	5 psi	2.5 psi / 5.8'	2" MNPT to 1/2" QD Plug	159.1" (4041mm)	23 Lb (10.43 Kg)
LD-060	60" (1524mm)	7" (178mm)	4.5 psi	2.25 psi / 5.2'	2" MNPT to 1/2" QD Plug	165" (4191mm)	26 Lb (11.79 Kg)
LD-066	66" (1676mm)	7" (178mm)	3 psi	1.5 psi / 3.5'	2" MNPT to 1/2" QD Plug	153" (3887mm)	51 Lb (23.13 Kg)
LD-072	72" (1829mm)	7" (178mm)	2 psi	1 psi / 2.3'	2" MNPT to 1/2" QD Plug	166" (4217mm)	34 Lb (15.42 Kg)
LD-076	76" (1930mm)	7" (178mm)	2 psi	1 psi / 2.3'	2" MNPT to 1/2" QD Plug	212" (5385mm)	51 Lb (23.13 Kg)
LD-084	84" (2134mm)	8" (203mm)	1 psi	0.5 psi / 1.2 ft	2" MNPT to 1/2" QD Plug	193" (4903mm)	51 Lb (23.13 Kg)
LD-090	90" (2286mm)	9" (229mm)	1 psi	0.5 psi / 1.2 ft	2" MNPT to 1/2" QD Plug	211" (5360mm)	50 Lb (22.68 Kg)
LD-096	96" (2438mm)	10" (254mm)	1 psi	0.5 psi / 1.2 ft	2" MNPT to 1/2" QD Plug	224" (5690mm)	85 Lb (38.6 Kg)

Technical downloads

High Expansion Inflatable Pipe Plug Specifications (PDF)

Check the opening and operating bore

Compare the model’s deflated diameter and length with the complete insertion route, including bends and branches. Then confirm the permitted operating bore range and required contact length. A pipe being larger than the deflated bladder does not by itself establish a suitable seal.

Sealing performance can vary with the bore and installation. Tell Justram whether the application requires containment or only debris exclusion, and whether any seepage is acceptable.

Materials and application conditions

The standard offering uses a rubber bladder with a ballistic nylon cover. Nitrile and other material configurations can be requested for specific services. Supply the fluid or gas, concentration, temperature and exposure duration before selecting a chemical-resistant option.

Abrasion resistance does not mean puncture-proof construction. Inspect the access route and pipe surface, and discuss sharp edges or rough conditions when requesting a protective material.

Inflation and pipeline limits

Inflation pressure inside the bladder and the back pressure or head in the pipe are separate limits. Obtain both values for the selected model and follow its inflation, blocking and anchoring instructions. Do not use an inflatable plug as the sole protection for people working downstream.

Product and accessory examples

Images show different LD-series sizes and accessory arrangements. Confirm the supplied hose, valve, gauge or controller with the quotation.

LD Bladder with Kevlar overlay hose and gauge

Justram Inflatable Bladder With Pressure & Flow Monitoring Kit — Justram Inflatable Bladder with pressure and flow monitoring kit

Request a model or compare heavier construction

Send Justram the pipe bore, access dimensions, required inflated and deflated lengths, medium, pressure and temperature. Current model specifications and availability will be confirmed for the application.

For heavier construction or a bypass, compare heavy duty inflatable bladders. For other material requirements, review chemical resistant multi-size pipe plugs.