Pipe Test Plug
Heavy-Duty Marine Pipe End Sealing & Hydrostatic Pressure Testing (20" - 60")
Before a pipe string goes into the water, its joints need to be verified sound under pressure and once afloat, the same seal keeps water out of the bore so the string floats as intended.
20" – 60" (508–1524 mm)
20 Standard Marine Plug Sizes
0.5 – 1.0 Bar Test Rating
Diameter-Proportional Pressure Control
Screw Circular Expansion
Airtight & Watertight Bore Grip








Pipe Test Plug
Rugged steel pipe test plug featuring screw-driven radial rubber sealing, designed to seal pipe ends for pressure verification and ensure internal dryness during marine float-and-sink operations.
SEALING AND PRESSURE TESTING FOR MARINE PIPE STRINGS
KEY FEATURES & PERFORMANCE ADVANTAGES
Engineered for leak-tight pressure verification and dependable buoyancy control during offshore marine pipeline pulls.
Screw-Actuated Circular Seal
Screw-driven mechanism forces a heavy-duty circular rubber face against the pipe bore, providing a tight, uniform pressure seal.
Heavy-Duty Steel Construction
Rugged steel body engineered to withstand hydrostatic backpressures and harsh marine environments without deformation.
Size-Graded Pressure Ratings
Calibrated test pressures step down with diameter (1.0 bar, 0.7 bar, 0.5 bar) to balance total sealing thrust on large bores.
Dual Testing & Buoyancy Sealing
Enables pressure testing of welded joints prior to launching while maintaining a dry bore for controlled string flotation during towing.
| Model Type | Pipe size mm. | Pipe size inch | Force type | Actuation Type | Force shape | Recommended Wall Thickness Schedule 40 | Kg | Request Quote |
|---|---|---|---|---|---|---|---|---|
| LPTP 0901 20 | 508.00 | 20" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 22 | 558.80 | 22" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 24 | 609.60 | 24" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 26 | 660.40 | 26" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 28 | 711.60 | 28" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 30 | 762.00 | 30" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 32 | 812.80 | 32" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 34 | 863.60 | 34" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 36 | 914.40 | 36" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 38 | 965.20 | 38" | 1.0 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 40 | 1,016.00 | 40" | 0.7 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 42 | 1,067.00 | 42" | 0.7 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 44 | 1,118.00 | 44" | 0.7 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 46 | 1,168.00 | 46" | 0.7 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 48 | 1,219.00 | 48" | 0.7 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 50 | 1,270.00 | 50" | 0.5 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 52 | 1,321.00 | 52" | 0.5 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 54 | 1,372.00 | 54" | 0.5 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 56 | 1,422.00 | 56" | 0.5 Bar | Trapezoidal Screw | - | Steel | Rubber | |
| LPTP 0901 60 | 1,524.00 | 60" | 0.5 Bar | Trapezoidal Screw | - | Steel | Rubber |
OFFSHORE PIPELINE SEALING SOLUTIONS
Engineered for marine pipe pulling, intake and outfall installations, and river/harbor crossings.
HDPE & Steel Joint Pressure Verification
Verifies that welded or electrofused joints are sound under pressure before the pipe string enters the water.
Marine Float-Out Buoyancy Sealing
Keeps water out of the pipe bore to ensure controlled buoyancy while the string is towed to the offshore alignment corridor.
Outfall & Intake Pipeline Construction
Critical end sealing for large-diameter municipal desalination, water intake, and effluent outfall lines.
River, Lake & Coastal Harbor Crossings
Provides reliable end sealing during bottom pulls and directional drilling crossing installations.
OTHER MARINE PIPE PULLING EQUIPMENT PRODUCTS

Pipe Float
External HDPE Buoyancy Modules for Float-and-Sink Marine Pipeline Strings (20" - 60")
VIEW RANGE →
Towing Head / Pulling Head
High-Load Tow Line Attachment & Tension Distribution for Marine Pipe Strings (20" - 60")
VIEW RANGE →
Towing Cone / Towing Funnel
Hydrodynamic Leading-End Pipe String Guide for Offshore Tow-Outs (20" - 60")
VIEW RANGE →
Internal Spider Clamp
Präzisions-Rohrausrichtung am Grabenrand für Fernleitungen (36" bis 240")
VIEW RANGE →Need Certified End Sealingfor Your Marine Pipeline Project?
Contact Technical Pipeline engineering specialists to select the right test plug size and pressure rating for your pipe diameter, wall schedule, and marine installation plan.
