PSI polyvinyl chloride coated (PVC) steel casing isolators are often selected due to their strength and excellent corrosion resistance.

An extremely tough and durable heat fused plastic coating is offered on steel casing isolators 4" and larger, with 8" and 12" band widths. The cold formed steel casing isolator band, complete with runner studs installed, is vapor degreased, primed, heated and fusion coated with plastic, providing a minimum .010" (.254 mm) thick coating over the entire band and runner studs. A post cured cycle strengthens the bond and provides an even more uniform coating. Polyvinyl chloride is available as a standard. Other heat fused plastic coatings are also available for custom orders and applications.

The runners are attached with 3/8" diameter studs, which are fusion welded to the band before it is PVC coated. They are recessed far below the wearing surface of the runner. After the runner is anchored to the band, the stud counter-bore is filled to assure a water tight seal for the stud and the lock fastener.

Model Options

• Model C8G-2: Coated Steel casing isolator with an 8" (203 mm) wide steel band and 2" (50.8 mm) wide glass reinforced runners.
• Model C12G-2: Coated Steel casing isolator with a 12" (305 mm) wide steel band and 2" (50.8 mm) wide glass reinforced runners.

Painted Steel

PSI painted steel casing isolators are selected when strength and economy are your most important concerns. A rust inhibiting paint is applied over 14 gauge (0.074"/1.88 mm) hot rolled and pickled mild steel for casing isolators 4" (101.6 mm) diameter and up, in either 8" (203 mm) or 12" (305 mm) bands. The flanges of the spacer are deep embossed and the corners are chamfered. The G-2 runners are attached with 3/8" (9.5 mm) diameter studs, which are fusion welded to the band before it is painted. They are recessed far below the wearing surface of the runner and, after the runner is anchored to the band, the stud counter-bore is filled to insure a water tight seal for the stud and the lock fastener. G-1 runners are attached by projection welded method.

Model Options

• Model A8G-1 or A8G-2: Painted Steel casing isolator with an 8" (203 mm) wide steel band and 1" (25.4 mm) or 2" (50.8 mm) wide glass reinforced runners.
• Model Al2G-1 or Al2G-2: Painted Steel casing isolator with a 12" (305 mm) wide steel band and 1" (25.4 mm) or 2" (50.8 mm) wide glass reinforced runners.

Stainless Steel

Tough, heavy duty 14 gauge (0.74" / 1.88 mm) 304 stainless steel isolators/spacers are available for use in highly corrosive environments. They offer maximum corrosion resistance while providing support for large diameter pipe, unusually heavy pipe or for long casing pulls. The flanges of the spacer are deep embossed and the corners are chamfered.

The runners are attached with 3/8" (9.5 mm) diameter studs, which are fusion welded to the band. The studs are recessed far below the wearing surface of the runner and, after the runner is anchored to the band, the stud counter-bore is filled to insure a water tight seal for the stud and the lock fastener.

Model Options

• Model S8G-2: Stainless Steel casing isolator with an 8" (203 mm) wide steel band and 2" (50.8 mm) wide glass reinforced runners.
• Model S12G-2: Stainless Steel casing isolator with a 12" (305 mm) wide steel band and 2" (50.8 mm) wide glass reinforced runners.

Typical spacing for all PSI metallic casing isolators / spacers

• A8 / C8 / S8 = 7' (2.1 m) to 10' (3.0 m)
• A12 / C12 / S12 = 8' (2.4 m) to 12' (3.7 m)

An isolator/spacer should be placed within 2' (0.6 m) on each side of a coupling or joint and within 1' (0.3 m) of each end of the casing.

Ranger Il^®, All Non-metallic

An all non-metallic spacer system designed to ease carrier pipe insertion, reduce inventory costs, make installation quick and easy to last for the life of the piping system.

Features:

• All non-metallic. No nuts, bolts, washers or any other metal parts to corrode or degrade over time.
• Segmented pieces - small inventory may be used to accommodate a large variety of pipe styles, types and diameters. No extra trips from job site to warehouse for additional parts.
• Easy assembly. Simply slide the segments together and ratchet tight with the patented Slide-Lock connecting system.
• Wide variety of runner heights to allow numerous options for pipe positioning within the casing.
• Manufactured from UV resistant polypropylene.
• No special tools required for installation.
• Accommodates plastic, ductile iron and steel carrier pipe (not suitable for concrete pipe).

Model Options:
For carrier pipe diameters from 0.83" (21 mm) to 37.60" (955 mm) in diameter. See our Ranger II web page for runner heights, configuration options, ordering information and installation instructions.

Band/Runner Segment Specifications

Typical Installation
Based on 20' (6.1 m) carrier pipe segments in a casing of not more than 300' (91.5 m). Consult CCP for longer casings and for concrete pipe.

Typical Specification

Casing spacers shall be all non-metallic (polypropylene), molded in segments for field assembly without any special tools. Spacer segments shall be secured around carrier pipe by insertion of a cinching spline. The casing spacer polymer shall contain ultraviolet inhibitors and shall have a minimum compressive strength of 3,000 psi, an 800 Volts/mil dielectric strength and impact strength of 1.5 ft-Ibs/inch. Each casing spacer shall have full length, integrally molded skids extending beyond the bell or mechanical joint of the carrier pipe.

Each casing spacer 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.

Approved vendor: Corrosion Control Products Company.

Recommended Maximum Spacing

All Ranger II^® Isolators/Spacers should not exceed 8' (2.4 m) center to center.
An isolator/spacer should be placed within 2' (0.6 m) on each side of a coupling or joint and within 1' (0.3 m) of each end of the casing. For more details on spacing, contact CCP.

Model PE

High density (linear), injection molded virgin polyethylene casing isolators / spacers provide positive insulation, high abrasion resistance and low coefficient of friction for a wide variety of energy industry double containment carrier / casing pipe applications. They are extremely light in weight and easy to handle during installation.

A ribbed inner surface prevents slippage and guards against carrier pipe coating damage while the outer surface may include any one of several molded runners to accommodate 2" (50.8 mm) x 4" (101.6m m) or larger carrier / casing differentials.

One piece solid molded segments provide for maximum load bearing. Hardware includes cadmium plated steel studs, nuts and washers. A screwdriver is the only tool needed for installation.

Model PE Options:

• 3/4" (19 mm) through 12" (305 mm) = 2 segments, T\pop/bottom.
• 14" (356mm) through 48" (1,219mm) and larger = multiple segments.

Model HT

A unique formulation of polymers is used in the manufacture of the Hi-Temp isolators/spacers giving them the capability of being used for applications that may reach 280°F(138°C). A high-temperature plastic liner improves friction with the carrier pipe while protecting it from damage to either pipe or coating.

Typical Installation
Based on 20' (6.0 m) carrier pipe segments in a casing of not more than 300' (91.5 m). Consult CCP for longer casings and for concrete pipe.

Model HT Options

• 3/4" (19 mm) through 12" (305 mm) = 2 segments
• Top/bottom 14" (356 mm) and above = contact CCP for availability.

Recommended Maximum Spacing
All model PE and Hi-Temp Polymer Isolators / Spacers should not exceed 5' (1.5 m) to 8' (2.4 m) center-to-center. An isolator / spacer should be placed within 2' (0.6 m) on each side of a coupling or joint and within 1' (0.3 m) of each end of the casing.

• Band/Runner Segments:
  Tensile Strength (ASTM D638, D651): 3,00 - 5,500 psi (218 - 387 kg/cm²)
  Compressive Strength (ASTM D693): 3,200 psi (225 kg/cm²)
  Water Absorption (ASTM D570): 0.1%
  Temperature, Max: 180ºF (82ºC)
  Impact Strength (ASTM D256): 1.5 - 2.0 ft.lb/in (0.8 - 1.07 newton-meter/cm)
  Dielectric Strength (ASTM D149): 450 Volts/mil
  Color:  Natural
• Liner:  None
• Runner Sizes:
  3/4" (19mm) through 12" (305mm) = 2-piece with molded-in runners.
  14" (356mm) and larger = Multiple segments with molded-in runners.
• Hardware:
  Metallic:  Bolts and Square Nuts = Plated Steel
  Non-metallic:  Bolts and Nuts = High Temperature Plastic
• Note:  Model PE Casing Isolators/Spacers are designed primarily for smaller diameter steel or polyethylene carrier pipes (ANSI O.D. pipe without a bell or mechanical joint). We do not recommend that they be used on any carrier pipe over 24" (610 mm) in diameter or for installation over 200 feet (61 m) long without consulting with CCP. PE isolators / spacers should not be used on concrete carrier pipe.
• Typical Specification
  Casing isolators/spacers shall be PSI Model PE molded from high density polyethylene plastic in two segments. Each spacer segment shall be a solid, non-welded molded piece designed for accommodating specific size pipe O.D.'s. Each casing spacer 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. Approved vendor: Corrosion Control Products Company (CCP).

How to Order Plastic Casing Isolators / Spacers

For 3/4" (19 mm) through 12" (305 mm) nominal diameter carrier pipe, use 2-piece model PE. For 14" (356 mm) and larger nominal diameter carrier pipe, use multi-segment Model PE. To order, specify:
  
1. Quantity
2. Model Number
3. Carrier Pipe O.D.
4. Coating Thickness
5. Casing O.D. and Wall Thickness
6. Contact Corrosion Control Products Company.

• Band
  Painted & Coated:  14 Gauge (0.074", 1.88 mm) hot rolled and pickled mild steel. Flanges of the spacer are deep embossed and the corners are chamfered.
  Stainless Steel:  14 Gauge (0.074", 1.88 mm) 304 stainless steel. Flanges of the spacer are deep embossed and the corners are chamfered.
• Configurations
  4" (101.6 mm) through 36" (914 mm) = 2 Piece
  36" (914 mm) through 48" (1,219 mm) = 3 Piece
  48" (1,219 mm) and over = Consult CCP
• Finishes Available
  Stainless Steel: None
  Coated Mild Steel: 10 to 16 mil. fusion bonded PVC coating (others available)
  Painted Mild Steel: Rust inhibiting paint
• Runners Fusion Bonded PVC Coating
  Durometer - shore A2 (10 sec, ASTM D1706-61T): 80
  Max. Operating Temperature (constant):  150°F (65°C)
  Aging Properties:  Excellent
  Electrical Properties (ASTM D149-61, short time .010"):  1,380 V/mil
  Salt Spray Resistance (ASTM B117): Excellent
  Acids Resistance:  Good
  Alkalies Resistance:  Good
• Liner
  Material:  Polyvinyl Chloride
  Thickness:  0.090" (2.29 mm) minimum
  Hardness Durometer "A":  85-90
  Dielectric Strength:
  1/8" (3.18mm) Surge Test:  60,000V min.
  Step-by-step Test:  58,000V min.
  Water Absorption:  1% max.
• Risers
  Stainless Steel:  10 gauge (0.135 mm) 304 stainless steel MIG welded to band.
  Coated & Painted Mild Steel: 10 gauge (0.135 mm) steel MIG welded to band.
• Runners Sizes & Configurations
  Stainless Steel & Coated:  2" (51 mm) Wide Glass Reinforced Polymer Runners.
  Painted:  1" (25.4 mm) or 2" (51 mm) Wide Glass Reinforced Polymer Runners
  4" (101.6 mm) thru 12" (305 mm) = 2 top & 2 bottom
  14" (356 mm) thru 36 mm (914 mm) = 2 top & 4 bottom
• Runner Specifications
  Tensile Strength (ASTM D638): 17,600 psi (1,237 kg/cm²)
  Flexural Strength (ASTM D790): 25,300 psi (1,779  kg/cm²)
  Compression Strength (ASTM D648): 18,000 psi (1,266  kg/cm²)
  Deflection Temp @ 264 psi (ASTM D648): 405ºF (205ºC)
  Deformation Under Load: @ 122°F (50°C) 2000 lb. load - (ASTM D621): 1.2%
• Studs, Nuts and Washers
  Studs = 5/16" - 18 x 2 1/2" 304 stainless steel or plated
  Hex Nuts = 5/16"
  Washers = 5/16" SAE 2330
• Configurations
  8" (203.2mm) Band = 6 studs, 12 nuts and washers.
  12" (305mm) Band = 8 studs, 16 nuts and washers.

How to Order Metal Casing Isolators / Spacers

1.  Quantity
2.  Type Finish
3.  Band Width
4.  Runner Width
5.  Carrier Pipe O.D. (Type and coating thickness if applicable)
6.  Casing Pipe I.D. (Type and coating thickness if applicable)
7.  Carrier Pipe Joint O.D.
8.  Carrier pipe position within casing
9.  Length of crossing
10. Contact Corrosion Control Products Company.

Example:
Coated 12" (305mm) wide steel band casing spacer with 2" (50.8 mm) wide glass reinforced polymer runners for a 16" (400 mm) steel pipe with a 16.00" (400 mm) outside diameter within a casing pipe with a 23.25" (590mm) inside diameter, standard position: C 12 G-2 16.00 x 23.25 - (none) S

• Type Finish
  A = Painted
  C = Coated
  S = 304 Stainless Steel
• Band Width
  8 = 8" Band
  12 = 12" Band
• Runner Width
  G-1 = 1" Wide Glass Reinforced Runners
  (available on painted models only).
  G-2 = 2" Wide Glass Reinforced Runners.
• Carrier Pipe O.D.
  Indicate actual O.D. including coating.
• Casing Pipe I.D.
  Indicate actual I.D. including coating.
• Carrier Pipe Joint O.D. (if applicable)
  Indicate actual O.D. including coating.
• Position within Casing
  S = Standard
  C = Centered

Typical Steel Casing Isolator / Spacer Purchasing Specification

Factory made casing isolators / spacers of the following description shall be installed on any carrier pipe passing through a pipe casing. They are designed to protect the carrier pipe corrosion coating and electrically isolate the carrier pipe from the casing.

Casing Isolators/spacers shall be PSI Model C8G-2 for carrier pipes up to 24-inch diameters and Model C12G-2 for larger pipe sizes as manufactured by Pipeline Seal and Insulator, Inc.

Casing isolators/spacers shall have a minimum 14-gauge steel band and where required, 10-gauge risers. The band, risers and connecting studs shall be welded and cleaned at the factory before the application of a fluidized bed fusion bonded PVC coating of between 10-16 mils thickness. The PVC coating shall provide good resistance to acids and alkalies and excellent resistance under ASTM B117 salt spray tests (epoxy coatings are not an acceptable alternative).

The isolators / spacers shall have a flexible PVC inner liner of 0.09 inch thickness with a durometer "A" 85-90 hardness and a minimum 58,000 volt dielectric strength.

The runners shall be high pressure molded glass reinforced polymer with a minimum compressive strength of 18,000 psi per ASTM D638. The runners shall be 2.0 inch in width and a mini-mum of 7.0 inches long for C8G-2 models and 11" for C12G-2 models (polyethylene runners are not an acceptable alternative). The runners shall be attached to the band or riser by 3/8" welded steel studs and lock nuts which shall be recessed far below the wearing surface on the runner. The recess shall be filled with a corrosion inhibiting filler. The band section shall be bolted together with cadmium plated studs, nuts and washers.

Quality Assurance:  Each isolator/spacer 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.

Runner material compositions for PSI isolators/spacers are optimized to insure a smooth, low resistance ride even for the heaviest and longest pull applications. While providing resistance to the abrasive action, PSI runners are optimized for maximum compressive strength and hardness. Glass reinforced polymer runners are standard in 1". C (coated) and S (stainless steel) models are available in 2" (50.8 mm) only. PSI glass reinforced runners have 5 times the compressive strength of polyethylene runners. PSI 2" wide runners are designed for heavier pipes and longer pulls.

End Seals
  

Individually designed to accommodate custom carrier / casing combinations. Made of 1/8" thick, specially compounded synthetic rubber for long life and easy installation.

Specifically designed for existing installations. Simply remove plastic backing from self-curing rubber and press exposed surfaces together. Available for all carrier/casing differentials.

Made of special synthetic rubber for long life and easy installation, the highly flexible "S"-shaped seal is available for ANSI steel pipe specifications. Band locating ribs are on the outside, with special sealing ribs on the inside under the band to pre-vent leakage.

This model has been developed exclusively for situations involving a need for fire retention. They are applicable to casing through dikes in tank farms, fire walls or wherever a casing may be in a fire prone area.

Pipeline Seal and Insulator is the industry leader in the design and fabrication of multiple carrier spacers used for inserting different size pipes, conduits and wires into casings. Projects have ranged from simple dual pipe configurations to complex pipe/conduit arrangements, designed for maximum strength and efficiency within all pipe specifications. Customized spacers are also available with electrically isolated rollers to ease installation of unusually heavy carrier pipes or for extremely long casing pipe runs. PSI Models A (painted), C (coated) or S (stainless steel) may be designed and fabricated to meet the needs of your custom project.

may be used to seal the ends of casings when the carrier pipe is centered. In fact, double protection may be achieved by using a Link-Seal Modular Seal in combination with any of the End Seals above.