End closure / end caps; Used to lock the pipe test sample, the end closures seal off the sample in order to generate internal pressure in the sample. Maximum pressure depends on standard, specifications and pipe sample diameter. 

The design of the small end closure device for small diameter and large diameter pipe samples is different from the design of medium and large end closure devices. 

An air release valve is used to discharge the remaining air in the pipeline. The intelligent patented design ensures quick assembly. UnitedTest end closure devices are made of 100% stainless steel AISI 304 (proof available). 

Internal sealing type for the pipe fitting. 

1, Annual production end closure tens of thousands sets to ensure our technical and quality of this important pipeline hydrostatic pressure test fixtures;;
2, We adopt raw material is 45# carbon steel or 304# stainless steel, several type end closures for pipe or pipe fitting;
3, ISO 1167 Type A structure, External type: for diameter 16mm till 2000mm, three to six petals structure(not welding), no leakage under high pressure, Nickle coating, reliable and durable, 100% success installation.

Standard dimensions: φ16, φ20, φ25, φ32, φ40, φ50, φ63, φ75, φ110, φ125, φ140, φ160, φ180, φ200, φ225, φ250,φ280, φ315, φ355, φ400, φ450, φ500, φ560, φ630, φ710, φ800, φ900, φ1000, φ1100, φ1200, φ1400, φ1600, φ1800, φ2000

Inch size: 1/2"  , 3/4"  , 1" ,1-1/4"   , 1-1/2" , 2"  , 2-1/2" , 3"  , 4"  , 5"  ,   6" ,  8"  , 10" , 12"  , 14"  , 16" ,  18"  , 20“, 24" 

Material:   Cast iron (for above 110mm),  or   304 stainless steel .

ISO 1167: Thermoplastics pipes, fittings and assemblies for the conveyance of fluids -- Determination of the resistance to internal pressure;

ASTM D1598: Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure;

ASTM D1599:  Standard Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings;

ASTM D2837,ISO1167, ASTM D1598, ASTM D1599, ASTMD1784,ASTM D2466,ASTM F442, ASTM D2672,ASTM D2837,ASTM D2992,ASTM D2517,ASTM D2241,ASTM D3139,ASTM D3212,ASTM D2846,ASTM D2846M