ASME Hot selling 2016 pipeline insulating joints

Introduction

Insulating Joint is monolithic pipeline insulating joints with the sealing properties, strength properties required by the underground steel pipelines and insulating properties required by the electrical corrosion. It consists of assembly unit, insulating board, insulating sealing filler, seal ring, pups, etc.

Features of Structure

The pipeline insulating joints is monolithic type. It is the type of fixing the insulating board and insulating sealing filler into the assembly unit. After completion of assembling of the pipeline insulating joints, the internal components shall be fixed at the relevant positions. The whole pipeline insulating joints is in good condition under soil pressure, specified pipeline operating pressure and factory or field hydraulic test pressure. The sealing component contacts with the insulating board tightly inside the pipeline insulating joints and has everlasting elasticity. In addition, both sides of the sealing component contact directly with the naked surface of metal without moving, which ensure the compactness of the pipeline insulating joints.

Features of Product

1. Insulating Performance: insulation resistance ≥10MΩ (under 1000V DC)

2. Dielectric Strength: ≥5KV (DC, hold 60 seconds)

3. Applicable Temperature: -40℃—+100℃

4. Applicable Medium: gas, oil, water, chemical materials, etc.

Features of Material

Insulating Material: ASTM D709 G11

Flange Forging: ASTM694 F60,ASTM A694 F70,ASTM A694 F52, ASTM A105N, ASTM A350 LF2, etc.

Pup: API 5L GrB, API 5L Gr BNS,ASTM A 106B ,API 5L PSL2-X60M,API 5L PSL2-X52M, API 5L PSL2-X70,API 5L X70/X60/X52/X42, SA516 Gr70,SA516 Gr55,API 5L PSL2-X52NS,SA516 Gr60,SA516 Gr65,API 5L PSL2 –BNS ,etc.

Sealing Materials: O-shape or U-shape seal ring (VITON, nitrile butadiene rubber)

Design Code

ASME VIII Div-I App.2;ASME VIII Div-II App.2;ASME B 31.3;ASME B31.4; ASME B 31.8