Advanced Fluoropolymer Devices GmbH
Precision Manufacturing Meets Transfer Molding

Installation and Operating Manual

Strainer

PFA Lined Strainer

Purion9

This comprehensive manual provides detailed instructions for safe transport, installation, operation, and routine maintenance of your equipment.
Please review all sections carefully before proceeding. Keep this manual accessible for future reference.
⚠️

Important Safety Notice

Carefully observe these operating instructions before transport, installation, operation, and maintenance!

Failure to follow proper procedures may result in equipment damage, personal injury, or voided warranty.

Manual Information

  • Document Version: 1.0
  • Last Updated: October 05, 2025
  • Document Type: Installation and Operating Manual
  • Language: English

Quick Reference Guide

📋 Before You Start
🚚 Transport Guidelines
⚙️ Installation Process
🔧 Operation Manual
🛠️ Maintenance Schedule
📞 Support Contact

1 Technical Data

1.1 Manufacturer Information

Advanced Fluoropolymer Devices GmbH
Hooghe Weg 16, 47906 Kempen, Germany
Email: sales@gft9.shop
Web: http://gft9.shop
Phone: +49 2152 9148591

1.2 Product Overview

Parameter Value
Name Purion9
Design norm DIN/ISO | ANSI
Size DN 15–150 | NPS ½"-4"
Flange dimensions DIN 2501 (PN 16) | ASME B16.10 (Class 150-RF LP)
Face to face dimensions DIN EN 558-1
Strainer basket Material: PTFE or PTFE-Carbon-Composite filter element Mesh: ETFE filter mesh size from 85 to 2000my (max. 150°C, for higher temperature, custom mesh provided up to 200°C)
Lining PFA, PFA/AS, PVDF
Body 1.0619 , 1.4308, 1.4408, A216WCB, CF-8, CF8-M
Pressure PN 16
Temperature range -10°C up to +150°C, higher / lower temperatures on request
Quality Body 24bar, Dielectric strength test 20kV
Certificates EU Pressure Equipment Directive 2014/68/EU

1.3 Type plate, conformity and body markings

Exemplary_Nameplate_PFA_Lined_Valve_Size_Pressure_Temperature_Valve_Type_Order_No._Identification_Number

Type Plate
The stainless steel name plate is undetachably riveted to the body. If the operator attaches his identification, it must be ensured that the valve matches the application inquestion.

Body identification:
The following are visible on the body according to DIN EN 19 and AD 2000 A4:

  • Nominal size
  • Rated pressure
  • Body material
  • Manufacturer's identification
  • Melt number/Foundry identification
  • Foundry date

1.4 Weight DIN | ANSI

DIN Weight Specifications
Size DIN Weight
DN 25 7 कि॰ग्रा॰
DN 50 18 कि॰ग्रा॰
DN 80 28 कि॰ग्रा॰
DN 100 80 कि॰ग्रा॰
ANSI Weight Specifications
Size ANSI Weight
NPS 1" 7 कि॰ग्रा॰
NPS 2" 18 कि॰ग्रा॰
NPS 3" 28 कि॰ग्रा॰
NPS 4" 80 कि॰ग्रा॰

1.5 Screws: Tightening Torque

All screws greased, tighten in diametrically opposite sequence!
The tightening torques for pipe screws and body screws mentioned must not be exceeded. For an exception, see Section 8, Flange connection valve/pipe is leaking.The following tightening torques are recommended.

1.5.1 Pipe Screws DIN | ANSI

DIN Pipe Screws
Size Screws Tightening Torque [Nm] [Nm/lbs]
DN 25 4 x M12 10
DN 50 4 x M16 26
DN 80 8 x M16 25
DN 100 8 x M16 35
ANSI Pipe Screws
Size Screws Tightening Torque [Nm] [Nm/lbs]
NPS 1" 4 x ½“ 70/8
NPS 2" 4 x ⅝“ 220/15
NPS 3" 4 x ⅝“ 400/45
NPS 4" 8 x ⅝“ 310/35

1.5.2 Body screws DIN | ANSI

DIN Body Screws
Size Screws Tightening Torque [Nm] [Nm/lbs]
DN 25 4 x M12 35/310
DN 50 4 x M16 45/398
DN 80 8 x M16 50/442
DN 100 8 x M16 60/531
ANSI Body Screws
Size Screws Tightening Torque [Nm] [Nm/lbs]
NPS 1" 4 x M12 310/35
NPS 2" 4 x M16 398/45
NPS 3" 8 x M20 442/50
NPS 4" 12 x M24 531 /80

1.8 Pressure Temperature Diagram

P-T Diagram & Vacuum P-T for PFA / PFA Conductive Lined Strainer

2. Notes on safety

This operating manual contains fundamental information which is to be observed during installation, operation and maintenance.It must be read before installation and commissioning!
This operating manual must always be available at the place of use of the valve.
For valves which are used in potentially explosive areas, see section 3.
Installation, operation and maintenance are to be performed by qualified staff.
The area of responsibility, authority and supervision of the staff must be regulated by the customer.

It is imperative to observe warnings and signs attached directly to the ball valve and they are to be kept fully legible.
Non-observance of the notes on safety may resulting the loss of any and all claims for damages.

For example, non-observance may involve the following hazards:

  • Failure of important functions of the valve/plant.
  • Risk to people from electric, mechanical and chemical effects.
  • Risk to the environment through leaks of hazardous substances.
Hazard_Sign_PFA_Lined_Valve_Manual

General hazard symbol!
People may be put at risk.

Information_Sign_PFA_Lined_Valve_Manual

Safety symbol!
The ball valve and its function may be put at risk if this safety symbol is not observed

2.1 Intended use

GFT9 trainers of the series GSO are pressure-maintaining components in accordance with the Pressure Equipment Directive (PED) for the passage of fluids and the filtering of particles of a defined grain size. The strainer serves to remove solid or suspended matter from the medium being conveyed. It protects the downstream equipment from this filtered-out material and thus from damage.

The valves are suitable for non-boiling liquids of group 1 in acc. with the Pressure Equipment Directive (PED). Solids can lead to increased wear, damage to sealing surfaces or to a reduction in the service life of the valve.

In case of the valve is intended for operating data other than those intended, the customer must carefully examine whether the design of the valve, accessories and materials are suitable for the new application (please consult the manufacturer).

2.2 For the customer / operator

If a valve is used, the operator must ensure that

  • hot or cold valve parts are protected by the customer against being touched
  • the valve has been properly installed in the pipe system
  • the usual flow rates are not exceeded in continuous operation.
  • an appropriate collection system is used to contain drip leaks/leaks locally and harmlessly.

This is not the manufacturer's responsibility.

Loads caused by earthquakes were not allowed for in the design.

Fire protection to DIN EN ISO 10497 is not possible (plastic lining and plastic components).

2.3 Improper operation

The operational reliability of the valve supplied is only guaranteed if it is used properly in accordance with Section 2.1 of this operating manual.

Hazard_Sign_PFA_Lined_Valve_Manual

The valve is supplied with flange caps. Do not remove them until just before installation. They protect the plastic surfaces against dirt and mechanical damage.

3. Safety notes for applications in potentially explosive areas based on the Directive 2014/34/ EC (ATEX)

The valves are intended for use in a potentially explosive area and are therefore subject to the conformity assessment procedure of the directive 2014/34/EC (ATEX).

As part of this conformity assessment, an ignition hazard analysis to EN 13463-1 to satisfy the fundamental safety and health requirements was conducted with the following result:

  • The valves do not have any ignition source of their own and can be operated both manually as well as mechanically/electrically.
  • The valves are not covered by the scope of application of the ATEX directive and therefore do not need to be identified accordingly.
  • The valves may be used in a potentially explosive area.

Supplementary notes:

  • Electric/mechanical actuators must be subjected to their own conformity assessment to ATEX.

It is imperative to observe the individual points of intended use for application in a potentially explosive are

3.1 Intended use

Improper operation, even for brief periods, may result in serious damage to the valve. In connection with explosion protection, potential sources of ignition (overheating, electrostatic and induced charges, mechanical and electric sparks) may result from improper operation. Their occurrence can only be prevented by adhering to the intended use. Furthermore, reference is made to Directive 95/C332/06 (ATEX 118a), which contains the minimum regulations for improving the occupational health and safety of workers who may be at risk from an explosive atmosphere.
A distinction is made between two cases for the use of chargeable liquids (conductivity < 10⁻⁸ S/m):

3.1.1 Chargeable liquid and non-conductive lining

Charges can occur on the lining surface, which may produce discharges inside and outside the valve.

  1. Discharges inside the valve:
    These discharges cannot cause ignitions if the valve is completely filled with medium. If the valve is not completely filled, such as during evacuation and filling, the formation of an explosive atmosphere must be prevented, e.g., by superimposing a layer of nitrogen. It is recommended to wait one hour before removing the valve from the plant to allow for the elimination of static peak charges. To safely prevent ignitions, the valve must always be completely filled with medium, or an inert gas layer must be used to exclude a potentially explosive atmosphere.
  2. Discharges outside the valve:
    Where the non-conductive lining protrudes on the sealing surfaces to the outside or comes into contact with the atmosphere, discharges may occur to nearby valves or attachments. To safely avoid explosion hazards and accidents, the atmosphere surrounding the valve must not be explosive.

3.1.2 Chargeable liquid and conductive lining

No hazardous charges can occur because charges are discharged directly via the lining and shell (surface resistance < 10⁹ Ohm, leakage resistance < 10⁶ Ohm). However, if non-conductive versions of individual components are installed in the valve, they may restrict the permitted ATEX zone and explosion subgroup despite the conductive lining of the armor plating. In such cases, it is necessary to consult the manufacturer. According to the “Technical Rules for Hazardous Substances: Avoidance of Ignition Hazards Due to Electrostatic Charges” (TRGS 727), static discharges of non-conductive linings occur only through interaction with a non-conductive medium and are therefore the responsibility of the plant operator. Static discharges are not sources of ignition stemming from the valves themselves.
Additional safety measures include:

  • The temperature of the medium must not exceed the temperature of the corresponding temperature class or the maximum permissible medium temperature as per the operating manual.
  • If the valve is heated (e.g., heating jacket), the prescribed temperature classes in the Annex must be observed.
  • To ensure safe and reliable operation, regular inspections must verify that the valve is properly maintained and kept in technically perfect condition.
  • Increased wear to the valve can be expected when conveying liquids containing abrasive constituents, requiring shorter inspection intervals than usual.
  • Actuators and electric peripherals, such as temperature, pressure, and flow sensors, must comply with valid safety requirements and explosion protection provisions.
  • The valve must be grounded, which can be achieved using pipe screws with tooth lock washers. Otherwise, grounding must be ensured by other means, such as a cable link.
  • Attachments such as actuators, position controllers, and limit switches must comply with relevant safety regulations concerning explosion protection and, if required, be designed in accordance with ATEX.
  • Special attention must be paid to the appropriate safety and explosion protection notes in the respective operating manuals.
  • Plastic-lined valves must not be operated with carbon disulfide.

4. Safety note for valves, certified to Clean Air Act (TA Luft)

The validity of the Certificate/Manufacturer Declaration depends on the operating instructions being read and observed.

  • Carry out regular maintenance intervals and check the tightness of the screw connections, tightening them as necessary.

5. Transport, storage and disposal

Handle the goods being transported with care. During transport protect the valve against impacts and collisions.

Directly after receipt of the goods, check the consignment for completeness and any in-transit damage.

Do not damage paint protection.

Hazard_Sign_PFA_Lined_Valve_Manual

For all transport work, observe generally accepted engineering practice and the accident prevention regulations

Information_Sign_PFA_Lined_Valve_Manual

The valve is supplied with flange caps. Do not remove them until just before installation. They protect the plastic surfaces against dirt and mechanical damage.

5.1 Storage

If the valve is not installed immediately after delivery, store them properly.
The valves be stored in a dry, vibration-free and well ventilated room at as constant a temperature as possible.
Protect elastomers against UV light.
In general, a storage period of 10 years should not be exceeded.

5.2 Return consignments

It is imperative to enclose a safety information sheet / general safety certificate on the field of application with the return consignment.
Contact the Manufacturer for more Information in that regard.
Safety precautions and decontamination measures are to be mentioned.

Hazard_Sign_PFA_Lined_Valve_Manual

Valves which have conveyed aggressive or toxic media rinse
and clean before being returned to the manufacturer's works

5.3 Disposal

Parts of the valve may be contaminated with medium which is detrimental to health and the environment and therefore cleaning is not sufficient.

Hazard_Sign_PFA_Lined_Valve_Manual

Risk of personal injury or damage to the environment due to the medium!

Wear protective clothing when work is performed on the valve.
Prior to the disposal of the valve:

  • Collect any medium, etc. which has escaped and dispose of it in accordance with the local regulations.
  • Neutralise any medium residues in the valve.
  • Separate valve materials (plastics, metals, etc.) and dispose of them in accordance with the local regulations.

6.Installation

  • Examine valve for in-transit damage, damaged sample valves must not be installed.
  • Before installation the valve and the connecting pipe must be carefully cleaned to remove any dirt, especially hard foreign matter.
  • During installation, pay attention to the correct tightening torque, aligned pipes and tension-free assembly.
Hazard_Sign_PFA_Lined_Valve_Manual

6.1 Flange caps and gaskets

Leave protective caps on the flanges until just prior to installation.
Where there is a particularly high risk of damage to the plastic sealing surfaces, e.g. if the mating flanges are made of metal or enamel, PTFE-lined gaskets with a metal inlay should be used. Contact the Manufacturer for further discussion.

6.2 Direction of flow and installation position

The direction of flow must be observed when installing the valve. It is indicated by a direction arrow on the valve body.
The installation position must always be such that the strainer can be drained from the bottom when the strainer basket is removed.
An incorrect installation position can result in a drop in performance or failure of the function.
Observe remove height A in acc. with the drawing in Section 10.3.

6.3 Grounding

The valve must be grounded. This can be achieved in the simplest way via the pipe screws using tooth lock washers. One pipe screw per flange is underlaid with toothed disks.

Upon customer request a set screw M6 is attached to each flange with a hex nut and washer as an additional earthing connection.

Otherwise grounding must be ensured by different measures e.g. a cable link.

6.4 Test pressure

The test pressure PT of a valve must not exceed the value of 1.5 x PS(PN) as per the identification of the valve.

7. Operation

7.1 Initial commissioning

Normally, the valves have been tested for leaks with air or water. Prior to initial operation check cover screws. For tightening torques, see Section 1.6!

To prevent leaks, all connection screws should be retightened after the initial loading of the valve with operating pressure and operating temperature. For tightening torques, see Section 1.6.

Hazard_Sign_PFA_Lined_Valve_Manual

Unless otherwise agreed there could be residual amounts of water in the flow section of the valve. This could result in a possible reaction with the medium.

7.2 Improper operation and their consequences

  • Crystallisation must be prevented, e.g. by heating. Damage to the seat or cone would be inevitable.In extreme cases a leak may occur.
  • Increased wear occurs in operation with solids contents.
  • Non-observance of the pressure-temperature diagram can lead to damage.
  • Avoid excessive contamination as otherwise high pressure losses and damage to the valve may occur.
Hazard_Sign_PFA_Lined_Valve_Manual

Prior to undoing the flange connection ensure, that the plant is depressurised and emptied!

Hazard_Sign_PFA_Lined_Valve_Manual

Prior to starting any repair work, the valve is to be thoroughly cleaned. It must be noted that there is still medium in the strainer basket area. Open cover and drain residual medium.

7.3 Shutdown

The local regulations are to be observed when dismantling the valve!

After dismantling, immediately protect the valve flanges against mechanical damage by using flange caps. See also Section 6.1.

8. Malfunctions

Clogged strainer basket

  1. Remove and dismantle entire strainer basket, clean or replace and install again.
  2. See Section 9.1 and 9.2.

Strainer basket sticks

  • If functional parts swell owing to the medium, it is very difficult to remove the strainer basket.
  • If dismantling is not possible by pulling the unit upwards, remove cover and push the strainer basket upwards from below.
  • Dismantling by pushing downwards is not possible owing to the anti-torsion insert!

Flange connection valve/pipe is leaking

  1. Retighten the flange screws to a tightening torque according to Section 1.2.
  2. If this does not remedy the leak, the recommended torques may be exceeded by 10%.
  3. If this also fails to stop the leak, dismantle and inspect the valve.

9. Maintenance

  • All repair work is to be performed by qualified personnel using the appropriate tools.
  • For the arrangement, designation and item numbers of all parts of the valve, see Section 10.
  • Spare parts are to be ordered with all the details in acc. with the valve identification.
  • Only original spare parts may be installed.
  • To prevent leaks, a regular check of the connection screws should be made in line with the operating requirements.
  • For tightening torques, see Section 1.2

Hazard_Sign_PFA_Lined_Valve_Manual

Make sure that when working on the sampling valve it is drained. See also Section 7.4. Observe safety regulations when handling the medium.

9.1 Dismantling of the strainer basket

Observe shutdown procedure in Section 7.3.
Step 1:
Undo cover fittings and remove upper cover and cover disc.
Step 2:
Screw ring bolt into the strainer basket and pull the strainer basket with the seal ring up and out.
Step 3:
If the strainer basket is cleaned or replaced when the valve is installed, attention must be paid when opening to residual medium in the plant.
Step 4:
Mark position of the inner and outer tubes in relation to the round cord.
Step 5:
Pull round cord out of the strainer basket bottom.
Step 6:
Pull out outer tube 234. The filter web or the entire strainer basket can now be cleaned or replaced.

For cleaning purposes, only use soft and/or liquid cleaning materials!

9.2 Installation of the strainer basket

Step 1:
Insert seal ring into the inner tube.
Step 2:
Place the filter web (new or cleaned) with an overlap over the inner tube.
Step 3:
Place the outer tube over the inner tube with a rotary movement. Do not turn against the overlap!
Step 4: 
Insert the inner and outer tubes together into the strainer basket bottom.
Step 5:
Insert the round cord again in accordance with the markings.
Step 6:
Insert the complete strainer basket into the strainer basket support. Pay attention to anti-torsion insert.
Step 7:
Screw the upper cover and cover disc tight with the stud screw, a toothed lock
washer and hex. nut.

For tightening torques, see Section 1.2.

9.3 Option Draining

Instead of the cover a transition cover is used with this option.
A valve can be connected to it. (DN 15 as standard or other DN on request)

See sectional drawing in Section 10.3.

10. Dimensional Drawings

10.1 Dimensional Measurements DIN

Size L H H1 ød øk øD Bolting A Weight
DN 25 160 मि॰मी॰ 175 मि॰मी॰ 110 मि॰मी॰ 68 मि॰मी॰ 85 मि॰मी॰ 115 मि॰मी॰ 4 x 14 (M12) 270 मि॰मी॰ 7 कि॰ग्रा॰
DN 50 230 मि॰मी॰ 220 मि॰मी॰ 140 मि॰मी॰ 102 मि॰मी॰ 125 मि॰मी॰ 165 मि॰मी॰ 4 x 18 (M16) 340 मि॰मी॰ 18 कि॰ग्रा॰
DN 80 310 मि॰मी॰ 320 मि॰मी॰ 150 मि॰मी॰ 138 मि॰मी॰ 160 मि॰मी॰ 200 मि॰मी॰ 8 x 18 (M16) 460 मि॰मी॰ 28 कि॰ग्रा॰
DN 100 350 मि॰मी॰ 330 मि॰मी॰ 160 मि॰मी॰ 158 मि॰मी॰ 180 मि॰मी॰ 220 मि॰मी॰ 8 x 18 (M16) 500 मि॰मी॰ 80 कि॰ग्रा॰

10.2 Dimensional Measurements ANSI

Size L1 H H1 ød øk øD Bolting A Weight
NPS 1" 160 मि॰मी॰ 175 मि॰मी॰ 110 मि॰मी॰ 50.8 मि॰मी॰ 79.4 मि॰मी॰ 108 मि॰मी॰ 4 x 15.9 270 मि॰मी॰ 7 कि॰ग्रा॰
NPS 2" 230 मि॰मी॰ 220 मि॰मी॰ 140 मि॰मी॰ 92.1 मि॰मी॰ 121 मि॰मी॰ 152.4 मि॰मी॰ 4 x 19 340 मि॰मी॰ 18 कि॰ग्रा॰
NPS 3" 310 मि॰मी॰ 320 मि॰मी॰ 150 मि॰मी॰ 127 मि॰मी॰ 152.4 मि॰मी॰ 190.5 मि॰मी॰ 4 x 19 460 मि॰मी॰ 28 कि॰ग्रा॰
NPS 4" 350 मि॰मी॰ 330 मि॰मी॰ 160 मि॰मी॰ 157.2 मि॰मी॰ 190 मि॰मी॰ 228.6 मि॰मी॰ 8 x 19 500 मि॰मी॰ 80 कि॰ग्रा॰

11. Sectional Drawing

Pos. Item Material
99 PFA Virgin
100 1.0619 (A216 WCB)
106 1.0619 (A216 WCB)
107 1.0619 (A216 WCB)
109 1.0619 (A216 WCB)
115 1.0619 (A216 WCB)
216 ETFE
217 1.0619 (A216 WCB)
219 PTFE / PTFE Carbon Composite
220 PTFE / PTFE Carbon Composite
218 PTFE / PTFE Carbon Composite
222 PTFE / PTFE Carbon Composite
234 PTFE / PTFE Carbon Composite
407 PTFE / PTFE Carbon Composite
522 PTFE / PTFE Carbon Composite
900 Stainless steel
901 Stainless steel
902 Stainless steel
920 Stainless steel
936 Stainless steel

[No Chapter Heading]

Product Strainer
Design Strainer Type-T-Strainer
Serial number
Size DN 25, DN 40, DN50, DN80 DN 100 | NPS 1",
NPS 1½", 2", 3" 4"
EU-Directive 2014/68/EU
Applied Technical Specification DIN EN IS0 12100 AD 2000
Surveillance Procedure 2014/68/EU, TÜV Rheinland Industrie Service GmbH
Notified Body for Pressure ID-No. 0035
Equipment
Conformity assessment. 2014/68/EU / 2014/68/EU
Procedure
Marking 2014/68/EU¹⁾ ≥ DN 25, ≥ 1“


Advanced Fluoropolymer Devices GmbH confirms that the basic requirements of the above specified directives and standards have been fullied
¹⁾ For sizes not listed a marking is not permissible.

Kempen, 17.12.2024

K. Schalm