Stainless Steel Casing Spacers - Isolators (Model S)

Tough, heavy duty 14 gauge (0.74"[1.88mm]) 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" (9.5mm) 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.

 
 
 Targeted Use - Water
  • For carrier pipe diameters ranging from 4" (101.6mm) to 120" (304.8cm).
  • For carrier pipe insertion lengths up to 5,000 feet* (1,524M)
  • Spacing Recommendations: Max 8' (243.8cm) between spacers, Max 2' (61.0cm) from casing pipe end, Max 2' (61.0cm) on each side of bell or mechanical joint.
  • Recommended End Seals: Model C, S, W, R and FW.

*Pipe insertion lengths may vary depending on type of casing pipe, condition of casing pipe or other factors that may cause excessive abrasion to runner materials.

 Typical Application for Stainless Steel Casing Spacers

Features
  • Low Labor Costs - May Be Installed
    By One Person
  • Glass Reinforced Nylon or Polyester Runners Offer Low Coefficient of Friction = 0.1 to 0.6
  • Glass Reinforced Nylon or Polyester Runners Offer 18,000 PSI (1,265kg/cm²) Compressive Strength
  • Riser Height May Be Specified For Specific Positioning of Carrier Pipe Within Casing
  • Heavy Duty PVC Inner Liner Provides Protection For Pipe and/or Coating
  • Offers excellent corrosion resistance
  • May be used for long pulls and/or heavy pipe installations
  • Designed to last for the life of the piping system
  • PVC Liner Provides Back-up Isolation
  • Deeply Embossed Flanges Offer Added Strength During Tightening of Flange Bolts
  • Eliminates the Need for Blown Sand or Pea Gravel
  • Available with 8" or 12" bands.
  • 10 or 7 gauge risers may be ordered.
 
Material Specifications for Stainless Steel Casing Spacers

Band

14 Gauge (0.074"[1.88mm]) 304 stainless steel.
(S8 and S12)

12 Gauge (0.105" [2.66mm]) 304 stainless steel.
(S12 = 40"#216; and up) Engineer/Contractor must specify.

16 Gauge (0.061" [1.56mm]) 304 stainless steel.
(Model SL8)

Flanges of the spacer are deep embossed and the corners are chamfered.

Configurations - Band

4" (101.6mm) through 36" (914mm) = 2-piece

36" (914mm) through 48" (1,219mm) = 3-piece

48" (1,219mm) and over = Consult Factory


Finish - None

Liner - Polyvinyl Chloride Liner (Standard)

Thickness

0.090" (2.29mm) minimum

Hardness

Durometer "A" 85-90

Dielectric Strength
  1/8" (3.18mm) Surge Test
  Step-by-Step Test

 
60,000 V min.
58,000 V min.

Water Absorption

1% max.

Temperature

-40 to 170°F. (-40 to 76°C.)


 

 
 

Liner - T.P.E. Liner (Temperature Extremes)
Model C12 Only

Thickness

0.118" (3.0mm)

Hardness

Shore "A" 73

Dielectric Strength
  1/8" (3.18mm) Surge Test
  Step-by-Step Test

 
60,000 V min.
58,000 V min.

Water Absorption

1% max.

Temperature

-50 to 270°F. (-45 to 132°C.)


Risers

10 Gauge (0.135" [3.43mm]) 304 stainless steel MIG welded to band.
(standard S8 and S12)

7 Gauge (0.179" [4.55mm]) steel MIG welded to band. (Contact PSI)

12 gauge (0.105" [2.667mm]) steel MIG welded to band (Model SL8)


 

Hardware (Threaded Studs, Nuts and Washers)

Threaded Studs = 5/16" - 18 x 2-1/2"
304 staianless steel or plated

Hex Nuts = 5/16"

Washers = 5/16" SAE 2330


Configurations (Threaded Studs, Nuts and Washers)

8" (203.2mm) Band = 6 studs, 12 nuts and washers

12" (305mm) Band = 8 studs, 16 nuts and washers

 
Material Specifications for G and GN Runners
Runners (G and GN)
NOTE: GN Material is the PSI Standard Material

 

Sizes and Configurations

2" (51mm) Wide Glass Reinforced Polyester (G) or Nylon Runners (GN)

4" (101.6mm) thru 12" (305mm) = 2 top and 2 bottom
14" (356mm) thru 36" (914mm) = 2 top and 4 bottom
38" (965.2mm) and over = Consult Factory



Runner Specifications (G and GN)

 

 

Tensile Strength,
(ASTM D638)

17,600 psi (1,237kg/cm²)

Flexural Strength,
(ASTM D790)

25,300 psi (1,779kg/cm²)

Compression Strength,
(ASTM D695)

18,000 psi (1,266kg/cm²)
(10% Deformation)

Deflection Temp. @ 264 psi,
(ASTM D648)

405°F (205°C)

 

 

 

 

 

 

 

 

 

 

 

 

 

Effective Runner Heights and Lengths - G and GN
Sizing carrier pipe O.D. and casing I.D. can be misleading at times due to a difference between nominal and effective dimensions. When sizing, make sure to consider effective runner height. Two heights are available/used; custom positioning in the casing can be achieved with riser heights.

 

Heights - Nominal Versus Effective
2" Wide Glass Reinforced Nylon or Polyester Runners

Nominal = 1.0" (25.4mm) - 1.5" (38.1mm)
Effective = 1.07" (27.2mm) - 1.70" (43.2mm)

 

Lengths - Effective
2" Wide Glass Reinforced Nylon or Polyester runners

7.0" (177.8mm) - 11.0" (279.4mm)

Glass reinforced polymer runners are standard in 2" (50.8mm) widths for Model C (coated). PSI GN glass reinforced nylon runners have 5 times the compressive strengthof polyethylene runners. Our Model G polyester 2" wide runners are particularly designed for heavier pipes and longer pulls.