˜exible leidingen ptfe piping - hanwel · ptfe piping. hanwel b.v. jan tinbergenstraat 209 7559 sp...

HANWEL NEDERLAND

flexible leidingen

PTFE piping

HANWEL B.V.

Jan Tinbergenstraat 209

7559 SP Hengelo

Nederland

Tel.: +31 (0)74 2650000

[email protected]

www.hanwel.com

Welflex PTFE 10-2012 SHORT OVERVIEW

WELFLEX

OVERVIEW OF PRODUCTS PTFE and PFA lined piping

Hanwel B.V. ● [email protected] ● www.hanwel.com 2

Hanwel Netherlands

Hanwel B.V.is established in 1967 and is a part of the

Indutrade Sweden group. (www.indutrade.se)

We supply valves, expansion joints and pipe supports

to all kinds of industry and are a reliable partner for your

organization. You can benefit from our knowledge and

our experience.

Welflex

The Welflex product range guarantees high quality

products with a high lifetime expectancy. The products

have been selected to fulfill the highest demands and

are divided into the following product ranges:

● PTFE expansion joints

● PTFE lined piping

● Stainless steel expansion joints

● Swivel joints

The Welflex PTFE lined pipe system

PTFE / PFA lining according to:

DIN 2874 Pipes, flanges and mouldings

DIN 2848 PTFE/PFA

GKV QA requirements for PTFE

We only use virgin fluor polymers that correspond to the

following specifications:

ASTM D-4895 paste extruded PTFE

ASTM D-3307 type II PFA

Coating can be carried out as follows:

PTFE white

PTFE black

PTFE black electrically conductive

The derivation resistance of the effective area of flow (electrode area

= 20cm2) may not exceed 108 ohms. The resistance of the pipe part

between the connecting tail pieces (flange, screwing, coup- ling, etc.)

must be below or equal to 106 Ω. Resistance measuring is subject to

DIN IEC 60093 und DIN IEC 60167.

PFA natural

PFA electrically conductive for moulding

(Tee-pieces, measuring joints, crosspieces and red pieces), please

see the corresponding technical data.

The tolerances of the lined products correspond to DIN

2874 standards.

Content

PTFE lined pipes

PTFE lined elbows

PTFE lined T-pieces

PTFE lined sampling piece

PTFE lined reducers

PTFE lined accessories

WELFLEX


3 Hanwel B.V. ● [email protected] ● www.hanwel.com

Steel pipes according to:

DIN EN 10216-1 P235TR2 according

to standard specification AD2000-W4

DIN EN 10216-2 P235GH according

to standard specification AD2000-W4

Other pipe qualities are available on request.

The pipes can be documented according to DIN

EN 10204-3.1.

Flanges according to:

welding neck flanges acc. to DIN EN 1092-1-11

loose flanges acc. to DIN EN 1092-1-34/04

smooth welding flanges acc. to DIN EN 1092-1-1

loose flanges acc. To DIN EN 1092-1-32/02

All flanges according to standard specification

AD2000-W9 can be documented according to

DIN EN 10204-3.1 B

Special flanges are available on request.

Materials:

In general the following materials are used:

S235JR = 1.0038

P265GH = 1.0425

P250GH = 1.0460

Other material is available on request

Painting:

The steel parts are grind-blasted from outside acc. to

SA 2.5 and coated with grey zinc epoxy primer casting

resin.

There are other possibilities such as:

Hot dip galvanizing

Electro galvanizing

Powder coating

Zinc phosphate – reddish brown

Other colours are possible.

Control and testing:

Pipe parts are specified according to DIN 2848 and DIN

2874 respectively.

The final control of the finished products is subject to

DIN 2874. All finished products can be documented

according to DIN EN 10204-2.2.

The design is subject to the implementing regulations

on PED. (97/23/EG)

Destructive tests are carried out in case of need upon

request.

WELFLEX



VACUUM RESISTANCE

Straight pipe with liner thickness acc. to Series 2:

In bar abs.

Diameter DN At 120°C At 230°C

< DN 80 0,00 0,00

DN 100 – DN 200 0,00 0,10

DN 250 – DN 400 0,00 -

Bends with liner thickness acc. to Series 2:

In bar abs.

Diameter DN At 20°C At 100°C At 150°C At 200°C < DN 50 0,00 0,05 0,10 0,15

DN 80 0,00 0,05 0,15 0,20

DN 100 0,25 0,10 0,20 0,30

DN 125 0,25 0,60 0,85 1,00

DN 150 0,25 0,60 0,85 1,00 DN 200 0,40 0,75 0,90 1,00 DN 250 0,45 0,90 0,95 1,00 DN 300 0,75 0,95 1,00 1,00 DN 350 1,00 1,00 1,00 1,00 DN 400 1,00 1,00 1,00 1,00 DN 450 1,00 1,00 1,00 1,00 DN 500 1,00 1,00 1,00 1,00

T-piece with liner thickness acc. to Series 2:

In bar abs.

Diameter DN At 20°C At 100°C At 150°C At 200°C < DN 50 0,00 0,00 0,00 0,00

DN 80 0,00 0,00 0,10 0,20

DN 100 0,00 0,15 0,25 0,30

DN 125 0,25 0,60 0,85 1,00 DN 150 0,25 0,60 0,85 1,00 DN 200 0,40 0,75 0,90 1,00 DN 250 0,45 0,80 0,90 1,00 DN 300 0,75 0,90 1,00 1,00 DN 350 1,00 1,00 1,00 1,00 DN 400 1,00 1,00 1,00 1,00 DN 450 1,00 1,00 1,00 1,00 DN 500 1,00 1,00 1,00 1,00

Thickness of PTFE in case of vacuum resistant pipes

Diameter DN 15 – DN 40

DN 50 – DN 65

DN 80 DN 100 – DN 200

DN 250 DN 300 – DN 400

Thickness of PTFE [mm] 3,0 4,0 4,5 5,0 7,0 8,0

WELFLEX



Machine parts, pipes, expansion joints etc. based on polyfluorethylene have all the advantages of the PTFE base

material. These products have an excellent resistance against:

• Acids

• Caustic soda

• Chlorides

• Sulfates

• Oxidants

Products out of PTFE have an excellent corrosion resistance due the medium, even at extreme temperatures between -

190°C and +260°C.

Properties of PTFE:

Density g/cm2 2,1 - 2,3

Continuous operation temperature °C -190 / +260°C

Short time peek temperature °C +280°C

Ultimate strain % 200 - 300

Hardness (Shore D) Shore D 55 - 70

Notched Impact strength Kg / cm2 13 - 15

Pressure resistance at 0,1% deformation Kg / cm2 580

Deformation at 50°C and 85 Kg/cm2 in 85 hours % 4 – 8

Specific heat Cal / g / °C 0,25

Elongation coefficient 10-5

/ °C 8

Thermo conductivity at 20°C W/K m 0,21

Dielectric constant 50 / 106 Hz 2,0 - 2,1

Arc resistant load at surface Ω cm >1018

/ -1019

Tensile strength Kg / cm2 200 - 300

Relative humidity >1013

Dielectric loss factor 50 / 800 / 106 Hz <5,10

-4

Dielectric strength KV / mm 20 – 40

Water absorption % 0

Friction coefficient PTFE - PTFE dry 0,09 - 0,19

Friction coefficient PTFE - PTFE greased 0,04 - 0,07

Friction coefficient PTFE - Steel dry 0,07 - 0,11

Friction coefficient PTFE - Steel greased 0,02 - 0,06

Weather-worn after 3 years none

Brand names:

Teflon - Du Pont

Hostaflon - Hoechst

Fluon - AGFP

WELFLEX



INSTALLATION

PTFE lined tube parts are made of seamless PTFE linings which are fitted into (stainless) steel parts.

PTFE expansion joints have a PTFE bellow with turnable backing flanges. Both have a PTFE sealing area at the flange.

For safe and reliable operating the following instructions should be followed:

Receipt:

Keep the products in the original packing as long as possible. Unprotected storage outside is not allowed.

Distance bolts:

The expansion joints are equipped with distance bolts to avoid over stretching during installation and in operation.

These bolts should be adjusted to the maximum allowable length after the expansion joint is installed. The distance

bolts are not designed to take up the pressure reaction forces! (pressure x effective cross section) The pressure

reaction force should be controlled by suitable fix points.

Flange protection covers:

The PTFE sealing faces are covered by protection covers. These covers may only be removed prior to the installation.

I.e. after inspection the covers should be refitted.

Gaskets:

For installation of PTFE on PTFE there are no gaskets required. In case the connecting pipe material is different we

advise the use of a 5 mm thick PTFE gasket.

Welding:

Welding or burning near the PTFE is not allowed. (The PTFE can be damaged and toxic gasses can develop)

Pipe supports:

The pipe must be provided with sufficient supports and fix points.

Bolt torques:

For PN 10 flanges the following maximum torques should be applied. At room temperature these torques can be

increased by 50% The threads must be clean and well lubricated.

DN Nm DN Nm DN Nm DN Nm DN Nm

25 25 50 45 100 50 200 115 350 140

32 35 65 46 125 80 250 95 400 155

40 35 80 48 150 90 300 115 500 160

To avoid damage to the sealing the parts should only be dismantled below 40°C

Painting:

If the PTFE lined pipes are to be painted the ventilation holes may not be plugged by paint or insulation as this might

cause the lining to collapse. The vent holes also serve as early warning leakage indicators.

HVP = Main fix point GL = Support TVP = Intermediate fix point

L1 = Distance depending of DN and weight

WELFLEX



DN 15 -

DN 500

DN 25 -

DN 100

STANDARD RANGE

The PTFE / PFA lined piping consist out of several standard parts that are connected by flanges. Smaller pieces and

pieces with a complicated shape are executed with a PFA (injection molded) inlay. The larger diameters are executed

with a PTFE (paste extruded) inlay.

The standard dimensions are DN15 to DN 500 for DIN EN pipes and ½” to 20” for ANSI pipes.

Upon request we can supply larger dimensions or special shaped pipe parts.

PTFE LINED PIPE SPOOL

Standard length depending on the diameter and maximal 6000mm

PTFE LINED BENDED PIPE SPOOL

The bended pipe spools are only available in a limited number of diameters and dimensions.

One fixed (F) and one loose (L) flange. EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs

One fixed (F) and one loose (L) flange. EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs

WELFLEX



DN 15 -

DN 500

DN 15 -

DN 500

DN 15 -

DN 500

DN 15 -

DN 500

DN 15 -

DN 500

PTFE LINED BENDS 30°





Both flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs



Both flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs Form 1

All flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs Form 2

WELFLEX



DN 15 -

DN 100

DN 125 -

DN 500

DN 15 -

DN 100

DN 125 -

DN 500

DN 25 -

DN 100

PFA LINED EQUAL TEE

PTFE LINED EQUAL TEE

PFA LINED REDUCED TEE

PTFE LINED REDUCED TEE

PFA LINED LATERAL TEE

All flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined

All flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined




WELFLEX



DN 15 -

DN 100

DN 125 -

DN 500

DN 15 -

DN 100

DN 125 -

DN 500

PFA LINED EQUAL CROSS

PTFE LINED EQUAL CROSS

PFA LINED REDUCED CROSS

PTFE LINED REDUCED CROSS





WELFLEX



DN 15 -

DN 350

DN 125 -

DN 500

DN 80 -

DN 150

DN 20 -

DN 400

DN 250 -

DN 400

PFA LINED INSTRUMENT TEE

PFA LINED INSTRUMENT TEE

PTFE LINED INSTRUMENT TEE

PFA LINED REDUCER (STRAIGHT)

PTFE LINED REDUCER (STRAIGHT)

To be clamped between flanges. EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined Style 1

To be clamped between flanges. EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined Style 2

To be clamped between flanges. EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined Style 3

Both flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined Style 1

Both flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined Style 2

WELFLEX



DN 500

DN 20 -

DN 400

DN 250 -

DN 400

DN 500

DN 40 –

DN 500

PTFE LINED REDUCER (STRAIGHT)

PFA LINED REDUCER (EXCENTRIC)

PTFE LINED REDUCER (EXCENTRIC)

PTFE LINED REDUCER (EXCENTRIC)

PFA LINED REDUCING FLANGE


Both flanges are fixed (F). EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined Style 1



Through going holes and threaded holes EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined Style 1 and 2

WELFLEX



DN 20 –

DN 150

DN 15 –

DN 400

DN 15 –

DN 400

DN 15 –

DN 400

DN 15 –

DN 500

PTFE LINED REDUCING FLANGE

PTFE LINED SPACER

PTFE LINED SPACER

PTFE LINED SPACER

PTFE LINED ANGULAR SPACER

Through going holes and threaded holes EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined Style 3

To be clamped between flanges EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined Style 1




WELFLEX



DN 15 –

DN 500

DN 15 –

DN 500

DN 15 –

DN 500

DN 25 –

DN 100

DN 125 –

DN 400

PTFE LINED ANGULAR SPACER

PTFE LINED BLIND FLANGE

PTFE LINED FLANGE WITH NOZZLE

PFA LINED SIGHT GLASS

PTFE LINED SIGHT GLASS


With PTFE gasket EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined

With PTFE gasket EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined

With Borosilicate glasses EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PFA lined

With Borosilicate glasses EN 1092-1 PN 10, PN 16 ANSI 150lbs, 300lbs PTFE lined

Hanwel B.V.Jan Tinbergenstraat 2097559 SP Hengelo ovNederlandTel.: +31 (0) 74 265 00 00Fax: +31 (0) 74 265 00 01Email: [email protected]

www.hanwel.com

˜exible leidingen ptfe piping - hanwel · ptfe piping. hanwel b.v. jan tinbergenstraat 209 7559 sp...

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