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BUTTERFLY VALVES BALL VALVES DIAPHRAGM VALVES ...

Flanged ball valveCorrosion Resistant

Thermoplastic Valve Solutions

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ChemicalIndustries

Base chemicals,Petrochemicals,Pharmaceuticals,Steel rolling mills,

Minerals andnon-ferrous metals.

Logistics

Intermediate BulkContainers,Flexible tanks.

Agriculture

Automated sprayers

WaterTreatment &Environment

Clean water, waste water,ef uent, seawater,

cooling water,land ll gas,

gas scrubbing.

OBJECTIVES

PRODUCTS

SOLUTIONS & APPLICATIONS

MATERIALS OF CONSTRUCTION

MANUFACTURING PROCESS

FEATURES AND BENEFITS

STANDARD OPTIONS

TECHNICAL DATA

ENQUIRY FORM

CONTACT DETAILS

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You are in good hands Real solutions forcorrosive uids

Founded in 1963, SAFI has unrivalled experience

in handling corrosive and abrasive chemicals withthermoplastic materials.

SAFI is committed to offering solutions to meetthe modern industry requirements for handlingcorrosive chemicals, ta ing into account, costsand technical demands as well as increasingregulations and standards.

Our R&D department has developed our productsover many years with the continuous co-operationof our customers. We have produced advanceddesigns using unique combinations of material.

With a global approach to our business, SAFI offersquality products with local customer support.

At SAFI, we believe that quality valves are

a worthwhile investment.

Lea ing valves cause corrosion to neighbouring equipmentwith damage to buildings and the environment. Valve failurescreate a hazard and cause unscheduled maintenance. Qualityvalves eliminate high unbudgeted costs. SAFI offers valvesthat are reliable and trouble free over a long time, Fit &Forget.

Many polymer materials have been shown to outlast metalsin agressive applications. Properly selected, SAFI valves canlast many years without maintenance.

Used throughout the World, SAFI valves are speci ed byleading consultants for use in chemical processes, chemicalstorage and distribution, pharmaceutical, mining and metaltreatment, potable and wastewater treatment, land ll,power generation, agrochemicals, chlor-al ali, pigmentsand speciality chemicals.

C O N T E N T S

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Quality assuredintegral angedball valves

SAFIs integral anged ball valves form a rangeof extremely robust and reliable valves for usewith corrosive chemicals such as strong acidsand al alies. They offer good alternatives tolined steel diaphragm valves, lined plug valvesand lined ball valves. In some services, they outperform valves madeof special metals, such as Alloy 20, chromiumcast iron, titanium etc...Their resistance to abrasion is good, and theygenerally perform better in slurries than PTFElined diaphragm valves.

The valves have TA-Luft and ISO 15848certi cation. Food grade and ATEX ( )compliant grades are available.

Flange options available are compatiblewith DIN and ANSI standards. The valves arealso available with face to face dimensionscompatible with most diaphragm valves on themar et to allow easy substitution.

PED 97/23

DN15 - DN50 (1/2" - 2")

DN150 (6")

DN80 - DN100 (3 and 4")

P R O D U C T S

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BREAkAGE, BLOCkAGE, LEAkAGE, SHORT LIFECORROSION OF ADJACENT EQUIPMENT,MESSY ENVIRONMENT,

.....

CompatibleThe solutions

A recognised alternativeto diaphragm valves

Ball Valves are generally a better choice than diaphragmvalves for on-off services.SAFI Ball Valves can last for years without any lea sand any maintenance, even in most slurry services.

SAFI anged ball valves are available withface-to-face dimensions compatible with mostplastic and lined metal diaphragm valves on themar et.

S O L U T I O N S &

A P P L I C A T I O N S

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100% positive shut-offTA-Luft approved1/4 turn operationEasily identi ed valve position(open/closed)Full bore / full ow 1/2" to 6"(DN15 to DN150)

A Sa PVDF valve substitutes for a linedcast iron diaphragm valve at the bottom of

a 98% Sulphuric Acid storage tank.

=

Marks left by the edges

of the weir

The problemsDiaphragm valves require multiple turns of thehand-wheel to operate, this can cost valuableseconds in an emergency, although valve positionindicators are now available any damage to theindicator ma es it dif cult to identify if the valveis open or closed.

- To compensate for lea ing or damagedvalves it is common practice to over-tightenthe hand-wheel, this can cause damage to theoperating spindle and plunger assembly.

- Corrosion caused by the external environmentor due to lea age of uid into the bonnet canma e diaphragm valves dif cult to open/close,operators often revert to using excess force orwheel eys which can cause damage to the handwheel.

- Sealing integrity is reliant upon the condition

of the diaphragm. Elastomers such as EPDM,FkM and FEP can suffer from premature ageingand result in valve lea age. Diaphragms linedwith PTFE are widely selected to handle themost corrosive chemicals, particularly whensolid particles are present in the uid. HoweverPTFE is not elastic and repeated bending, solidtrapped particles and where the diaphragm isclamped can all cause the diaphragm to developstress crac s and lea .

- Diaphragm valves are generally weir type andhave a reduced bore which can increase the

possibility of a bloc age.

- Glass lined metal diaphragm valves can beaffected by thermal shoc causing the glass tocrac and corrosive liquid to attac the metalbody.

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S O L U T I O N S &

A P P L I C A T I O N S

The alternative tostainless steel valves

1) Stainless steels, duplex steels and even high nic el alloys such as Alloy 20 are resistant to acids due to a thinnatural invisible passivation layer of nic el oxide or halide which occurs at the surface of the metal during themanufacturing process. This natural passivation layer shields the metal from chemical attac and protects against

corrosion.2) In common textboo s and chemical resistance charts stainless steel is shown to have resistance to many corrosivechemicals. However often this resistance is conditional and only applicable when the stainless steel is immersed instill liquid (without ow). Corrosion factors should be considered such as fast ow, turbulence or the presence ofsolid particles in the uid.3) The fragile protective lm is continuously removed by the motion of the uid leaving the metal exposed to continuousand a surprisingly fast destruction of equipment follows.

Applications witherosion and abrasion

Diaphragm valves are oftenselected where solid particlesare present in the uid. In fact,the solid particles damage the

diaphragms, especially PTFEdiaphragms, which results infrequent problems throughlea age and diaphragmfailures.

SAFI Ball valves havean outstanding resistance to erosion and abrasion.They are used in waste water treatment, steel pic ling linesand pigment factories to handle uids with as much as 250g/l of solids.

PP and PVDF are abrasion resistant materials :

On a TABER abrasion test, SAFIsPVDF performs 10 times better than304 stainless steel. Polypropylenecomes second with a score of 3times better than 304.Erosion tests carried out by SOLVAY,PVDF performed 3 times better than

carbon steel and approximately equal to duplex steel 904L.These tests were carried out in water. When the uid iscorrosive as well as abrasive the damage to the metalis considerably more, whereas it ma es no difference tothe polymers. Polymer valves therefore have a signi cant

advantage over metal alloys for handling dilute acids withsolid particles.The design of SAFI ball valve seats provide aperfect surface contact with the ball, preventingthe introduction of solids between the twosurfaces reducing the effects of scratches tothe ball or seats.

sulfuric acidapplications

SAFI Flanged ball valves surpass stainless steelball valves and lined steel or lined cast iron valvesin most applications involving sulphuric acid atambient temperature. High ow rate, accidental

dilution and combined erosion affect SAFI ballvalves far less than stainless steel valves. Theabsence of visible metal parts eliminates allexternal corrosion.

The SAFI PVDFvalve with FkM 75O-rings can serve inall concentrationsof sulphuric acid,and oleum at roomtemperature. Dilutionhas no effect so long as the temperature does

not exceed 100C for any length of time.For solutions with lower concentrations, moreeconomic solutions exist with the GRPP bodiesand EPDM O-rings up to certain concentrations.The table below shows the most economicsolution for given service conditions. If abrasiveparticles are present in the uid, PVDF balls arerecommended in valves with GRPP bodies.

SAFI composite material valves completely eliminate this problem.They exhibit good resistance to abrasion and a nonstic surface preventing the accumulation of scale or crystals.They are chemically inert with respect to many acids and erosion-enhanced corrosion is therefore completelyeliminated.

Steel pickling line, 33%, 80C,with 120g/litre iron oxyde particles

PVDF/FPM

PPFV/FPM

PPFV/EPDM

H2 SO4 (%)

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M A T E R I A L S O F

C O N S T R U C T I O N

Valve Bodies- Glass Reinforced Polypropylene : This is the most common material used forSAFI Flanged Ball valves. Reinforced with 20% borosilicate glass bres, it hasincomparable mechanical strength, machinability, dimensional stability, andresistance to temperature up to 100C.Its resistance to UV light is enhanced by carbon blac pigment, and by the additionof synthetic UV stabilisers. An anti-oxidant additive improves its resistance tooxidising chemicals.

- Anti-static Polypropylene : This optional material contains 20% carbon bres,and conducts electricity. It is used in explosion hazard areas where anti-staticdevices are mandatory.- Polypropylene Homopolymer is used as a standard for balls up to 2. UV light andchemical resistance has been enhanced by pigments and additives in the same wayas in SAFIs glass Reinforced Polypropylene.- Polyvinylidene Fluoride : SAFI selects a highly crystalline grade of PVDFproduced by the suspension process. This grade exhibits particularly highmechanical resistance and long term stability at high temperatures. PVDF hasan outstanding resistance to abrasion. PVDF has excellent chemical & abrasionresistance properties. The grade used by SAFI will not blister in wet chlorine. PVDFis not recommended for strong al alies and polar solvents such as etone, estersand amines.

Rings and seals- EPDM (Ethylene propylene diene methylene terpolymer) Grade 60 : A quality EPDM suitable for hydrochloric acid atall concentrations near room temperature and many aqueous chemicals. Only affected by strong oxidisers and oils.- EPDM grade 67 : A special formulation of EPDM for acetic acid.- FEP (Fluorinated ethylene propylene copolymer) coated rubber + kalrez : In this combination, a kalrez O-ring isused for the stem dynamic seal, whereas all static seals are made of FEP coated rubber. FEP is unaffected by almost

all industrial chemicals, including solvents and also serves where the high purity of the chemical must be preserved(e-g: pharmaceuticals).- FKM (Vinylidene uoride hexa ouropropylene copolymer) grade 73 or Viton B601C : A good grade of uoroelastomersuperior to Viton A. Suitable for sulphuric acid < 70%, and any concentration of hydrochloric acid. Not suitable forcaustic soda. Also sensitive to polar solvents such as etones, and sulphides.- FKM Special grade 75 : With a high uorine content > 70 % and special mineral additives for the highest chemicalresistance to strong acids (hydrochloric, sulphuric 98%, nitric...), chlorine, methanol....

- High mechanical strength- Long term stability- UV Resistant (outdoor service)

ATEX CompliantZone 1 and 2

- High mechanical strength- Excellent chemical resistance to strong acids and oxidizing solutions.

Properties Applicable ASTMStandard

Unit GRPP PP ASPP PVDF

- % Fibre - % 20 (glass) 0 20 0- Density D 792 g/cm 1.04 0.9 1.02 1.78Mechanical Properties

- Rupture stress D 638 MPa 55 35 75 50- Tensile Rupture Stress D638 Mpa- Elongation at brea D638 % 3 200 2.5 40- Flexural rupture stress D 790 Mpa 70 35 95 94- Flexural modulus D 790 Mpa 4200 1200 4900 2500- Resilience, IZOD impact test D 256 J/m 80 - 100 to200- Hardness, Roc well R D 785 105 30 115- Hardness, Shore D D 785 74 - 77 to 82Thermal Properties- Heat de ection temperature18.5 g/cm 2

D 648 C 125 52 115

- Vicat softening point under 5 g D 1525 C 140 152 147- Linear expansioncoef cient, 0 to 100C

D 696 10 /C 6 13 11

Electrical Properties

- Surface Resistance ASTM D257 ohm 10- Resistance to trac ing NFC 26-220 V 270

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F E A T U R E S

& B

E N E F I T S

PTFE thrust bearing washer to reducetorque provides smoother operation andincreases service life.

Fully encapsulated steel reinforced anges. Removes the need for an exposed metal

bac ing ring.Compression moulded seat with sphericalsealing surfaces and perfect contact withthe ball. Good resistance to crystallization.

O-rings give energised seat/ oating ball,ensuring sealing at low pressures, lowoperation torque. Piston mounted bodyO-rings. Sealing avoids tension stress fromthe piping.

2-piece body with buttress thread. This

thread is extremely robust and suited toplastics

Body loc ing device :Prevents the loosening of valve body underthe effects of pipe stresses.

Moulded sealing rings onanges to improve gas et

sealing and eliminategas et extrusion.

This test illustrates the exceptionalmechanical strength of the SAFI glass andsteel reinforced integral angedpolypropylene ball valves.This 6 valve holds a weight of 250 g atthe end of 1m section of pipe. It will breaat 961 g.

DN15 to DN50

DN80 - DN100

DN150

Size PVDFBodyGRPPBody

ASPPBody

DN15 1/2" 100 75 52DN20 3/4" 100 75 52DN25 1" 100 65 45DN40 1.1/2" 85 50 35DN50 2" 80 40 28DN80 3" 45 30 21DN100 4" 45 30 21

DN150 6" 45 24 17

SHELL BURST PRESSURE TEST (BAR)

OUTSTANDING MECHANICAL RESISTANCE

The robust Solution

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S T A N D A R

D O P T I O N S

Valveswith pneumatic actuators- kinetrol vane type actuators- Rac & pinion actuators- Max-Air corrosion resistant thermoplastic actuators

- Limit switch boxes- Manual over-ride- Positioners 3-15 PSI or 4-20mA available

Valveswith electric actuators- All types of electric actuators possible- SAFI manufactured actuators for DC 12V, 24V, 48V and AC 110V, 240V- Corrosion resistant Thermoplastic casing IP65/NEMA 4- Option 1 : SM-1 Small & Compact (1)- Option 2 : SM-2 manual override and visual indicator as standard (2)- Optional extras include : Anti-condensate heater, Extra switches,

Battery bac -up unit

Optionsfor manual operations- Loc able handle (1)- Extended stem (2)- Spring return handle (3)- Handwheel Reduction Gear (4)

V-port owcontrol valvesComplete valve and actuator pac ages can be provided to meet your ow requirementsat the same time as being corrosion and erosion resistant.

Ball relief holeThe ball of SAFI ball valves may be provided with a lateral hole on the upstream sideto vent the ball cavity in the closed position. This is recommended to avoid trappedpressurized uids and avoids accidents with chemicals which tend to decompose andproduce gases such as hydrogen peroxide.

3 wayValvesThree-way ball valves are available up to DN100, with L-Ball, double L or T-ball.

2 3 4

10 20 30 40 50 60 70 80 9075 8510 20 30 40 50 60 70 80 9075 85

CV

OPENING ANGLE

CV

OPENING ANGLE

DN 25 DN 50

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E N Q U I R Y F O R M

Nature of yourbusiness :

Contact Name :

E-mail :

Process :

Tel :

Fax :

Fluid general name : Comments

Comments

Fluid Composition :

Solid Particles ? :

Pressure Bar.g :

Temperature C/F :

Design :

Previously used valve : (if applicable), type and brand :

Type of service : On / Off Flow Control Three-way valve

Piping Material :

Requested valve material :

Requested O-ring material :

Flange Standard :

Rating :

Face to Face (mm) :

Options :

Regulatory requirements :

Other requirements : Silicone free Greased with ECTFE grease (oxygen/chlorine)

PED TA-Luft ATEX Food/Water grade

Pressure relief hole in ball Extended stem Loc able handle

GRPP PVDF ASPP

EPDM FkM SPECIAL

ANSI DIN (PN10) JIS BS

V-Port (Flow control) Flow rate : Min Max

Electric Actuator : 12VDC 24VDC 48VDC 110-120VAC 220-240VAC

Extra Limit Switches Manual over-ride Heating resistorPneumatic Actuator :

Accessories :

Fail open Fail close Double acting

Air Supply pressure (min) in Bar G :

Solenoid Switch box Nb of limit switches Positioner Manual over-ride

Design :

Normal:

Normal:

%

%%g/l

DIN (PN16)

Other options : 3 core wire 5 core wire More...

380/415V 3ph

Customer

Service conditions

Valvede nition

Actuated valve options

ANY QUESTIONS ? NEED MORE INFORMATION OR A QUOTATION ?JUST COPY AND FILL IN THE FORM BELOW AND FAX IT TO OUR SALES DEPARTMENT OR TO YOUR LOCAL DISTRIBUTOR.

LOOk FOR YOUR LOCAL DISTRIBUTORON OUR WEB SITE

WWW.SAFI-VALVES.COM

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SAFI HEADOFFICE

Avenue Jacques MoisonBP1 26770 TAULIGNANFRANCE

Tel. (33) 475 53 56 29Fax (33) 475 53 62 78E-mail: info @ safi-valves.com

www.safi-valves.com

I M P L A N T A T I O N