ElectroStop - Monolithic Isolation Joints

Eliminates Short Circuits

Bolts, sleeves and washers – the major source of short circuits in most isolation assemblies – are eliminated with the ElectroStop® isolation joint. Each joint is electrically tested during production to assure integrity, performance, isolating properties.

Eliminates Field Assembly

The ElectroStop® isolation joint is completely factory assembled and tested. There are no flanges, gaskets, nuts, bolts, sleeves or washers to handle and consequently no fluid leaks due to improper field assembly.

Coated Both Internally and Externally

A two-part bonded epoxy is sprayed to a thickness of .016” -.024” (.40 to .60mm) to within 2” (50.8mm) of each weld end. Each joint is tested for coating thickness uniformity and for holidays.

100% Hydrostatically Tested

All ElectroStop® fittings undergo hydrostatic pressure tests at 1.5 times rated operating pressure in accordance with ASME B31.3 standards. Testing is normally conducted for 30 minutes for joints up to 6” and 60 minutes for 8” to 24” joints but can be tested per customer specifications. A pneumatic test is held at 87 psi for 10 minutes.

Is Completely Weld Inspected

All ElectroStop® fittings undergo a weld inspection with combinations of ultrasonic (UT) and magnetic partical (MT) on all welds. In addition, X-ray tests can be conducted upon request.

Manufactured under an ISO 9001:2008 Quality Management System. The ElectroStop® is available in any diameter and any ANSI Class

To order ElectroStop™ Monolithic Isolating Fittings please indicate the following:

1. Quantity
2. Nominal Pipe Size
3. ANSI, DIN, API Pressure Class or Actual Working Pressure
4. Pipe Grade
5. Wall Thickness
6. Temperature Limits
7. Product Conveyed
8. Contact your local distributor or Pipeline Seal & Insulator, Inc.

(Ultrasonic/Magnetic Particle/Dye Penetrant).

The Monolithic Isolation Fitting shall be the ElectroStop™ Isolation Fitting as manufactured by Pipeline Seal & Insulator, Inc., Houston, Texas.

Quality Assurance

Each monolithic isolation fitting shall be manufactured at a facility that has a Registered ISO 9001:2000 Quality Management System. Copy of current ISO 9001:2000 Registration shall be provided with material submittal.

Standard Design Specifications

ElectroStop™ isolation fittings provide permanent electrical isolation of piping sections, facilitating the management of a cathodic protection system. These fittings will be completely factory assembled.

Design Features

• A low uniform profile enhances ease of handling and field coating or tape wrapping.
• Fittings can be welded into the pipeline above grade, utilizing standard pipeline welding procedures, then lowered into the trench by a sling.
• There is a natural heat sink to dissipate circumferential weld heat during installation.
• They are tamper proof and maintenance free after installation.
• Each fitting will be the following minimum length which will include the insulating mechanism and pipe pups.
• See provided charts. Literature contains more sizing information.

150# ANSI CLASS (PN or DP 25)

• 150# ANSI Pressure Rating = 285 psi
• ElectroStop Continuous Operating Pressure = 355 psi
• Test Pressure = 540 psi
• Working Temperature: Range = 14° F. to 212° F. (-10° C. to 100° C.)
• Electrical Resistance (Dry Air) = 25 Mohms @ 1kv D.C.
• Breakdown Voltage (Dry Air) = 5kv @ 50Hz for 1 minute.
• Dimensional Data

* See Note.

300-400# ANSI CLASS (PN or DP 64)

• 300# ANSI Pressure Rating = 740 psi
• 400# ANSI Pressure Rating = 990 psi
• ElectroStop Continuous Operating Pressure = 990 psi
• Test Pressure = 1,500 psi
• Working Temperature: Range = 14° F. to 212° F. (-10° C. to 100° C.)
• Electrical Resistance (Dry Air) = 25 Mohms @ 1kv D.C.
• Breakdown Voltage (Dry Air) = 5kv @ 50Hz for 1 minute.
• Dimensional Data

* See Note.

600# ANSI CLASS (PN or DP 100)

• 600# ANSI Pressure Rating = 1,480 psi
• ElectroStop Continuous Operating Pressure = 1,480 psi
• Test Pressure = 2,225 psi
• Working Temperature Range = 14° F. to 212° F. (-10° C. to 100° C.)
• Electrical Resistance (Dry Air) = 25 Mohms @ 1kv D.C.
• Breakdown Voltage (Dry Air) = 5kv @ 50Hz for 1 minute.
• Dimensional Data

*Note: All data supplied is for standard fittings. Please contact factory for nominal diameters, pressures (up to 2500 ANSI), temperatures (up to 160° C, 320° F.) and electrical characteristics not shown. The information is subject to change at the manufacturer’s discretion.