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Polytetrafluoroethylene, Polypropylene, Polyvinylidene Fluoride
Spacers
Sales Specification: Effective May 04, 1999 · Supersedes:
Prior to 1999 |
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TEST REQUIREMENTS: |
TEST ITEM AND CONDITION
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LIMIT
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PTFE SPACER UNIT
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METHOD
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| Tensile @ Yield W/Glass |
1800 Min |
psi |
ASTM D638
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| Tensile @ Yield Non/Glass |
3000 Min |
psi |
ASTM D638
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| Elongation @ Yield W/Glass |
180 Min |
% |
ASTM D638
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| Elongation @ Yield Non/Glass |
250 Min |
% |
ASTM D638
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| Colorants |
0 Max |
% wt |
ASTM F1545
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| Glass Fiber Filler |
25 Max |
% wt |
ASTM F1545
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TEST ITEM AND CONDITION
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LIMIT
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PVDF SPACER UNIT
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METHOD |
| Tensile @ Yield |
5000 Min |
psi |
ASTM D638
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| Elongation @ Yield |
8 Min |
% |
ASTM D638
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| Colorants |
250-500 |
ppm |
ASTM F1545
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TEST ITEM AND CONDITION
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LIMIT
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PP SPACER UNIT
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METHOD
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| Tensile @ Yield |
2500 Min |
psi |
ASTM D638
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| Elongation @ Yield |
2 Min |
% |
ASTM D638
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| Colorants |
1 Max |
% wt |
ASTM F1545
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| Glass Fiber Filler |
30 Max |
% wt |
ASTM F1545
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1. MATERIAL REQUIREMENTS: |
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- Resin
- PTFE is virgin polytetrafluoroethylene.
- PVDF is polyvinylidene fluoride homopolymer.
- PP is a Type I homopolymer polypropylene with 30%
E-glass milled fibers.
- All resins conform to the requirements of ASTM F1545.
- Liner Colors:
- PTFE spacers are unpigmented and white.
- PVDF is pigmented black.
- PP is pigmented orange.
- Thickness:
- The nominal thickness for reducing, standard, blind, and
armored full face and ring spacers is 1/2" (13 mm) for 1"
through 8" pipe sizes and 3/4" (19 mm) for 10" and 12" sizes.
- The thickness of single and double taper and orifice full face
and ring spacers, and of lined steel ring spacers is produced per
customer specifications.
- PTFE lined steel ring spacers are lined with unfilled PTFE virgin
resin.
- Steel for ring spacers is SAE 1010-1030 or ASTM A516
GR 70 carbon
steel plate.
- Steel for 1" through 8" armored spacers is manufactured from
normalized ASTM A513
C-1010 aluminum killed steel tubing with chemical
composition conforming to ASTM A587.
- Steel for 10" and 12" armored spacers conform to ASTM A53, Grade B,
Type E.
- Metal wall thickness of steel armored spacers is 1/4" (6 mm).
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2. TEST REQUIREMENTS |
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- Service Temperature:
PTFE: -20°F (-29°C) to 450°F (232°C)
PVDF: 0°F (-18°C) to 275°F (135°C)
PP: 0°F (-18°C) to 225°F (107°C)
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| Note: |
Operating temperature limitations may be encountered depending
upon specific chemical environments. |
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B. |
Pressure: For Class 150 and 300 service, the maximum thickness recommended is
3" (76 mm). The preferred option to spacers is customized pipe
spools. |
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3. INSPECTION AND QUALITY CONTROL: |
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- Each spacer sealing surface is visually inspected for defects.
- Products are impression marked for material traceability.
REFERENCES
For more information please contact us.
THIS PRODUCT IS SHIPPED IN COMPLIANCE WITH APPLICABLE LAWS AND
REGULATIONS REGARDING CLASSIFICATION, PACKAGING, SHIPPING AND
LABELING. |
"This page is a machine translation of the source page, which is written in
English. This translation is intended to provide a general idea of the
page's content, and is not guaranteed for accuracy."
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