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PTFE and PFA Lined Fittings
Sales Specification: Effective August 1, 2002 ·
Supersedes:
October 27, 2000
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1. PTFE FITTING CONFIGURATION/METALLURGY AVAILABILITY:
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NPS
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| Fitting |
1" |
1-1/2" |
2" |
3" |
4" |
6" |
8" |
10" |
12" |
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| Tee |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L,S |
F,L,S |
| Instrument Tee |
F,L,D |
F,L,D |
F,L D |
F,L,D |
F,L,D |
F,L,D |
F,L |
F,L |
F,L |
| Lug Body Inst. Tee |
F |
F |
F |
F |
F |
F |
F |
N/A |
N/A |
| Reducing Tee |
N/A |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
| 90° Elbow |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L,D |
F,L,D |
F,L,D |
D,S |
| Red. 90° Elbow |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| 45° Elbow |
F,L,D |
F,L,D |
F,L |
F,L |
F,L |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
| Concentric Reducer |
L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L |
| Eccentric Reducer |
N/A |
S,L,D |
S,L,D |
S,L,D |
S,L,D |
S,D |
D |
N/A |
N/A |
| Lateral |
F,L,S |
F,L,S |
F,L,S |
F,L,S |
F,L,S |
F,L,S |
F,L,S |
N/A |
N/A |
| Red. Filler Flange |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L,D |
F,L |
| Cross |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
F,L |
N/A |
N/A |
L = Stainless Steel
S = Steel Cast
F = Steel Fabrication |
D = Ductile Iron
N/A = Not Standard |
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*Reducing filler flanges are available in carbon steel or stainless
steel up to 30" dia.
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Note: |
Rotationally-lined "Complex Shapes" are available lined with
Tefzel® ETFE through 30" dia. Housing and flange material can be
carbon steel or stainless steel. These include manifolds, branched
elbows, reducing laterals, double and triple branch instruments tees,
etc, per customer requirements. Tefzel® liner is unpigmented.
Check Resistoflex chemical resistance data for max. use temperature
of Tefzel® with various media. Liner selection is responsibility
of the customer. Contact factory for more information. |
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2. PFA FITTING CONFIGURATION/METALLURGY AVAILABILITY:
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NPS
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| Fitting |
1" |
1-1/2" |
2" |
3" |
4" |
6" |
8" |
| Tee |
D,S |
S |
S |
S |
S |
F |
F |
| Instrument Tee |
S |
S |
S |
S |
S |
F |
F |
| Reducing Tee |
N/A |
S |
S |
S |
S |
F |
F |
| 90° Elbow |
S |
S |
S |
S |
S |
D |
D |
| 45° Elbow |
S |
S |
S |
S |
S |
D |
D |
| Concentric Reducer |
S |
S |
S |
S |
S |
D |
D |
| Eccentric Reducer |
N/A |
S |
S |
S |
S |
S |
N/A |
D = Ductile Iron
S = Steel Cast
F = Fabricated Steel
N/A = Not Standard |
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3. FITTING REQUIREMENTS - CAST STEEL:
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4. FITTING REQUIREMENTS - DUCTILE IRON:
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5. FITTING REQUIREMENTS - FABRICATED CARBON STEEL:
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- Fittings conform dimensionally to ANSI B16.5.
- Metallurgy is as follows:
- One-Piece 90° Elbow
- Welded 90° Elbow
- One-Piece 45° Elbow
- Welded 45° Elbow, Tee, Reducing Tee, and Cross
Note: Special angle (other than 45° and 90°)
elbows are available upon request.
- Mitered Fittings: Equal Tee, Reducing Tee, Cross, and Lateral
- Concentric Reducer
- Instrument Tee
- Body is ASTM A285
Gr. C (C1018 or C1020 c.r.s.), or SAE
1010-1030 steel.
- Outlet is ASTM A513,
ASTM A587, ASTM A53/A106 Grade B, or
SAE 1010-1030 steel.
- Flanges are ASTM A105 forged steel.
- 1"-6" instrument tees with 1" branch, and 3" x 1-1/2" size
are available in ASTM A395
ductile iron cast body.
- Lug Body Instrument Tee
- Reducing Filler Flange, Reducing Filler Flange Scalloped
Design, and Ring Spacer
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6. FITTING REQUIREMENTS - STAINLESS STEEL:
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- Fittings conform dimensionally to ANSI B16.5.
- Metallurgy is as follows:
- 90° Elbow, 45° Elbow, Tee, Concentric Reducer
- Instrument Tee
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7. LINER REQUIREMENTS: |
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- Resin is PTFE or PFA conforming to the requirements of ASTM F1545.
- Liners are unpigmented. PTFE is white in color; PFA is clear.
Note: Standard fittings are available to provide 450° full vacuum
performance if so specified. Some fittings may have a reduced vacuum rating -
please refer to the vacuum tables for details. |
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C. |
The minimum outside diameter of the plastic sealing surface per ASTM F1545 is:
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Size |
Minimum Sealing Diameter |
| (NPS) |
(Inch) |
(Millimeters) |
| 1" |
1-7/8" |
48 |
| 1-1/2" |
2-11/16" |
68 |
| 2" |
3-7/16" |
87 |
| 3" |
4-5/8" |
117 |
| 4" |
5-15/16" |
151 |
| 6" |
8" |
203 |
| 8" |
10-1/16" |
256 |
| 10" |
12-1/4" |
311 |
| 12" |
14-3/8" |
365 |
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D. |
The minimum liner flange face thickness is 0.100" (2.54 mm). |
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8. OPERATING REQUIREMENTS: |
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- Service temperature:
For PTFE (carbon steel or DI housing and flanges):
-20° F (-29°C) to 450°F (232°C)
For PFA:
0°F (-18°C) to 450°F (232°C)
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Note 1: |
PTFE-lined stainless steel fittings can be used at lower
temperatures than shown above. Please consult technical services
for details. |
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Note 2: |
Operating temperature limitations may be encountered depending
upon specific chemical environments. |
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B. |
Pressure: The maximum allowable working pressure equals the
corresponding ASNI pressure-temperature rating per the designated
metallurgy. |
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C. |
Vacuum: 1"-12"fittings are available with full-vacuum capabilities.
Consult Resistoflex product publications, web site, or factory for
specific temperature/vacuum ratings. Complex Shapes vacuum rating is
undetermined. Testing can be provided at an additional charge. |
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9. STORAGE AND HANDLING REQUIREMENTS: |
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- Avoid dropping or impacting fittings with heavy objects or storing
near high traffic areas.
- Uninstalled lined fittings should not be stored or handled at
temperatures below 0°F (-18°C).
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10. PAINT
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Paint is a two component epoxy primer,
formulated on proprietary polymer technology, which provides rapid
cure and overcoating even under low temperature conditions. The
maximum external temperature rating is 212°F (100°C).
Note: Stainless steel fittings are not painted. |
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11. INSPECTION AND QUALITY CONTROL: |
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- 100% of PTFE-lined fittings shall pass a 12,500 - 15,000 volt
electrostatic test or a 425 psig hydrostatic test. These tests are
designed to verify the integrity of the plastic liner. ASTM F1545
specifies that the lined pipe manufacturer may employ either test.
Complex Shapes shall receive either a 12,500 volt minimum electrostatic
test or a 425 psig hydrostatic test.
- All parts pass visual inspection.
- The sealing surface of the liner is free of defects that would
impair sealing effectiveness.
- Wooden or plastic end protectors are used to protect the plastic
faces. End protectors should stay in place until immediately prior to
installation.
- Fittings are labeled with a sticker which identifies the plastic
liner type and the flange material.
- Color Band Coding:
- Fitting liner material is identified by a color band as
follows:
- Products are available impression marked for material
traceability.
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Liner
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Band/Lettering
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Imprint
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| PTFE |
Natural/Black
Natural/Black |
RESISTOFLEX-M-PTFE-ASTM-F1545
RESISTOFLEX-BC-PTFE-ASTM-F1545 |
| PTFE NV* |
Red/Back |
RESISTOFLEX-BC-PTFE NO VAC-ASTM-F1545 |
| PFA |
Brown/White |
RESISTOFLEX-BC-PFA-ASTM-F1545 |
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NV = Non-Vacuum 10" and 12" fittings. 10" and 12" fittings are
available with full vacuum capability, as well. |
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REFERENCES
For more information please contact us.
THIS PRODUCT IS SHIPPED IN COMPLIANCE WITH APPLICABLE LAWS AND
REGULATIONS REGARDING CLASSIFICATION, PACKAGING, SHIPPING AND
LABELING.
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"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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