Corrosion-Resistant Flow Control
PTFE & PFA
Lined Valves Manufacturer · Supplier · Exporter
Complete range of PTFE lined, PFA lined, PP lined, and PVDF lined valves — ball, butterfly, globe, check, and plug types — in WCB, CF8, CF8M, and CF3M bodies. Compliant with ASME, DIN/EN, and BS standards. Serving USA, Europe, Middle East, Africa, and Southeast Asia.
ASME B16.34 ASME B16.5 API 6D / 609 DIN 3230 EN 12266 BS 5351 / 5155 ISO 5208
Lining Materials Available
PTFE Lined PFA Lined PP Lined PVDF Lined
WCB Body CF8 Body CF8M Body CF3M Body
Also known as PTFE lined ball valve manufacturer PFA lined valve exporter fluoropolymer lined valve corrosion resistant valve acid resistant valve chemical duty valve PTFE butterfly valve PP lined valve supplier PVDF lined valve WCB ball valve CF8M lined valve
Product Catalog
Lined Valve Types — Full Range
All lined valves are tested per ASME B16.34 / API 598 / EN 12266-1. Shell test, seat leakage test, and operational torque test reports supplied. Third-party inspection (SGS, TÜV, BV) available.
PTFE Lined Ball Valve
ASME B16.34 · API 6D · DIN 3357 · BS 5351 · EN ISO 17292
Full-bore or reduced-bore ball valve with PTFE lining on body cavity, ball, and seats. Provides complete isolation from corrosive media. Quarter-turn operation. Bubble-tight shutoff (zero leakage, Class VI).
- Size RangeDN 15 (½″) to DN 300 (12″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 (SS 304) · CF8M (SS 316) · CF3M (SS 316L)
- Ball MOCCS with PTFE encapsulation / SS 316 PTFE coated
- Lining Thickness3.0 – 6.0 mm (body) · 1.5 – 3.0 mm (ball encapsulation)
- Seat / SealPTFE seats · PTFE stem packing · PTFE body lining
- Bore TypeFull bore (FB) / Reduced bore (RB)
- End ConnectionFlanged (FF / RF) · Wafer · Threaded (NPT / BSPT) · Butt Weld
- OperationLever (manual) · Gear box · Pneumatic actuator · Electric actuator
- Temp. Range-40°C to +180°C (PTFE lining limit)
- Leakage ClassClass VI (bubble-tight) per ANSI/FCI 70-2
- Face-to-FaceASME B16.10 / DIN 3202
- Flange DrillingASME B16.5 (ANSI) · DIN 2501 · BS 4504 · EN 1092-1
- Shell Test1.5 × rated pressure (hydro) per API 598 / EN 12266-1
- Seat Test1.1 × rated pressure (hydro) · zero leakage (air)
- Paint / FinishEpoxy primer + polyurethane topcoat · RAL 7035 (standard)
PTFE Lined ASME B16.34 API 6D DIN 3357 BS 5351 EN ISO 17292 API 598 Tested
PFA Lined Ball Valve
ASME B16.34 · API 6D · EN ISO 17292 · DIN 3357
PFA (Perfluoroalkoxy) lined ball valve offering superior chemical resistance compared to PTFE — particularly resistant to strong oxidising acids and solvents. PFA can be moulded to tighter tolerances, enabling better surface finish and lower permeation rate.
- Size RangeDN 15 (½″) to DN 200 (8″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 · CF8M · CF3M
- Lining MaterialPFA (Perfluoroalkoxy alkane) — superior to PTFE in permeation resistance
- Lining Thickness2.5 – 5.0 mm (injection moulded / isostatic pressed)
- Surface FinishSmooth bore — no crevices for product entrapment
- Permeation RateLower than PTFE — preferred for highly aggressive HF, HCl, H₂SO₄ services
- Temp. Range-60°C to +200°C (continuous) · +230°C (intermittent)
- End ConnectionFlanged RF/FF · ANSI B16.5 · DIN 2501 · EN 1092-1
- OperationLever · Gear · Pneumatic · Electric · Hydraulic actuator
- Leakage ClassClass VI — zero leakage per FCI 70-2
- Best ForHF acid · Fuming HNO₃ · Oleum · Chlorine · Bromine · Strong oxidisers
PFA Lined ASME B16.34 API 6D DIN 3357 EN ISO 17292
PTFE / PFA Lined Ball Valve — Dimensional & Pressure Data
| DN / NPS | OD Flange (mm) | Face-to-Face (mm) | PN 10/16 Rating | ANSI Cl.150 | CV Flow Coeff. (FB) | Approx. Weight (kg) |
|---|---|---|---|---|---|---|
| DN 15 / ½″ | 95 | 130 | 16 bar @ 100°C | 19.6 bar | 8 | 3.5 |
| DN 20 / ¾″ | 105 | 140 | 16 bar @ 100°C | 19.6 bar | 18 | 4.2 |
| DN 25 / 1″ | 115 | 150 | 16 bar @ 100°C | 19.6 bar | 32 | 5.5 |
| DN 40 / 1½″ | 150 | 165 | 16 bar @ 100°C | 19.6 bar | 85 | 9.5 |
| DN 50 / 2″ | 165 | 178 | 16 bar @ 100°C | 19.6 bar | 145 | 13.0 |
| DN 65 / 2½″ | 185 | 190 | 16 bar @ 100°C | 19.6 bar | 240 | 17.5 |
| DN 80 / 3″ | 200 | 203 | 16 bar @ 100°C | 19.6 bar | 380 | 23.0 |
| DN 100 / 4″ | 220 | 229 | 16 bar @ 100°C | 19.6 bar | 670 | 36.0 |
| DN 150 / 6″ | 285 | 267 | 10 bar @ 100°C | 19.6 bar | 1650 | 75.0 |
| DN 200 / 8″ | 340 | 292 | 10 bar @ 100°C | 19.6 bar | 3200 | 135.0 |
| DN 250 / 10″ | 395 | 330 | 10 bar @ 100°C | — | 5600 | 210.0 |
| DN 300 / 12″ | 445 | 356 | 10 bar @ 100°C | — | 8800 | 320.0 |
Face-to-face per ASME B16.10 / DIN 3202 F4. Pressure ratings shown at 100°C for PTFE-lined valves — de-rating required above 150°C. CV values for full-bore (FB) configuration. PFA lining available up to DN 200 (8″) as standard; larger sizes on request.
PTFE Lined Butterfly Valve
API 609 · EN 593 · DIN 3354 · BS 5155 · ISO 10631
Wafer, lug, or flanged type butterfly valve with PTFE liner encapsulating the body bore and disc. The PTFE liner acts as both a seat and a body lining — no separate gaskets required between liner and flange face. Economical and compact for large-bore corrosive service.
- TypesWafer (between-flange) · Lug body · Double-flanged (DFTF)
- Size RangeDN 50 (2″) to DN 600 (24″) · DN 50–300 standard stock
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 · CF8M · CF3M · LCB (low temp)
- Disc MOCWCB with PTFE coating · CF8M (SS 316) · Duplex SS
- Disc DesignConcentric disc (standard) · Double-eccentric (HP) · Triple-eccentric (HP/HT)
- Liner MaterialPTFE (standard) · PFA · ETFE · Rubber (EPDM/NBR — non-lined range)
- Liner Thickness4.0 – 8.0 mm (moulded/isostatic pressed)
- Stem SealPTFE stem packing · live-loaded stem seal available
- Temp. Range-40°C to +180°C (PTFE) · up to +200°C (PFA liner)
- Leakage ClassBubble-tight Class VI to ANSI/FCI 70-2 / EN 12266-2
- OperationLever · Gear operator (DN ≥ 150) · Pneumatic (DA/SR) · Electric
- Face-to-FaceASME B16.10 / DIN 3202 / EN 558 Series 20
- Flange DrillingASME B16.5 · DIN 2501 / EN 1092-1 · BS 4504
PTFE Lined API 609 EN 593 DIN 3354 BS 5155 ISO 10631
PTFE Lined Butterfly Valve — Breakaway Torque & Actuator Sizing Guide
Breakaway torque at maximum differential pressure (ΔP = PN rating). Apply safety factor ≥ 1.5× for actuator sizing. Values shown for concentric disc design with PTFE liner.
| DN / NPS | PN 10 Torque (Nm) | PN 16 Torque (Nm) | Actuator Sizing (min.) | Wafer F-to-F (mm) | Lug F-to-F (mm) | Approx. Weight (kg) |
|---|---|---|---|---|---|---|
| DN 50 / 2″ | 15 | 20 | 50 Nm DA pneumatic or manual lever | 43 | 43 | 3.5 |
| DN 65 / 2½″ | 20 | 28 | 50 Nm | 46 | 46 | 4.5 |
| DN 80 / 3″ | 28 | 40 | 80 Nm | 46 | 46 | 6.0 |
| DN 100 / 4″ | 45 | 65 | 100 Nm · gear box DN 100+ | 52 | 52 | 9.0 |
| DN 125 / 5″ | 65 | 95 | 120 Nm | 56 | 56 | 12.0 |
| DN 150 / 6″ | 90 | 130 | 160 Nm · gear box recommended | 56 | 56 | 16.0 |
| DN 200 / 8″ | 160 | 230 | 320 Nm · gear box | 60 | 60 | 28.0 |
| DN 250 / 10″ | 260 | 380 | 500 Nm · gear box | 68 | 68 | 45.0 |
| DN 300 / 12″ | 380 | 560 | 800 Nm · gear box | 78 | 78 | 70.0 |
| DN 400 / 16″ | 700 | 1050 | 1500 Nm · gear box | 102 | 102 | 130.0 |
| DN 500 / 20″ | 1200 | 1800 | 2500 Nm · gear box / electric actuator | 127 | 127 | 210.0 |
| DN 600 / 24″ | 1900 | 2800 | 4000 Nm · gear box / electric actuator | 154 | 154 | 330.0 |
PTFE Lined Globe Valve
ASME B16.34 · EN 1349 · DIN 3356 · BS 5152 · ISO 5752
Globe valve with PTFE lining on body, bonnet, and disc — provides precise flow throttling in addition to shutoff. Preferred over ball/butterfly in applications requiring modulating control of corrosive media. Available in straight pattern, angle, and Y-pattern designs.
- PatternsStraight (T-pattern) · Angle (90°) · Y-pattern (low pressure drop)
- Size RangeDN 15 (½″) to DN 200 (8″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 · CF8M · CF3M
- Disc / PlugPTFE disc (solid) · PTFE encapsulated SS disc · Needle plug (throttling)
- SeatIntegral PTFE body seat ring — replaceable
- Stem PackingPTFE chevron packing · live-loaded for fugitive emission control
- Bonnet DesignBolted bonnet (standard) · Pressure seal bonnet (HP) · Bellow seal (zero emission)
- Temp. Range-40°C to +180°C (PTFE)
- Cv CharacteristicLinear (standard plug) · Equal percentage (throttle plug)
- OperationHandwheel · Pneumatic (DA/SR) · Electric · Electro-hydraulic
- Leakage ClassClass IV / V / VI per ANSI/FCI 70-2
PTFE Lined ASME B16.34 EN 1349 DIN 3356 BS 5152
PTFE Lined Check Valve
ASME B16.34 · API 594 / 602 · EN 12334 · DIN 3357 · BS 5153
Swing check or wafer check valve with complete PTFE lining to prevent backflow of corrosive media. Self-actuating — no external operator required. PTFE disc and seat prevent metal contact with fluid.
- TypesSwing check (flanged) · Wafer check (spring-loaded disc) · Ball check · Lift check (globe body)
- Size RangeDN 15 (½″) to DN 300 (12″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 · CF8M · CF3M
- Disc MOCSS 316 with PTFE encapsulation / solid PTFE disc
- Hinge PinSS 316 / Alloy 20 / Hastelloy (MOC matched to service)
- SeatPTFE moulded seat — integral or replaceable ring
- Cracking PressureWafer spring check: 0.05–0.35 bar (spring selectable)
- Temp. Range-40°C to +180°C (PTFE) · up to +200°C (PFA disc)
- InstallationHorizontal (swing check) · Any position (wafer spring check)
- End ConnectionFlanged RF/FF · Wafer (between flanges) · Butt weld
PTFE Lined API 594 ASME B16.34 EN 12334 DIN 3357 BS 5153
PTFE Lined Plug Valve
ASME B16.34 · API 599 · EN 13397 · DIN 3202
Plug valve with PTFE-sleeved cylindrical or tapered plug providing a smooth bore sealing surface. Quarter-turn operation. Suitable for slurries, viscous fluids, and corrosive media where ball valve dead zones are unacceptable. Low pressure drop in open position.
- TypesLubricated plug valve · Sleeved (PTFE sleeve) · Non-lubricated · Eccentric plug
- Port TypeRegular port (70% bore) · Full port (100% bore) · 3-way / 4-way multiport
- Size RangeDN 15 (½″) to DN 300 (12″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Body MOCWCB · CF8 · CF8M · CF3M
- Plug SleeveVirgin PTFE sleeve · RPTFE (25% glass-filled) · FEP
- Temp. Range-40°C to +180°C (PTFE sleeve)
- Advantage over BallNo dead zones — self-draining · Suited for viscous / slurry media
- OperationWrench / Lever · Gear operator · Pneumatic · Electric
- End ConnectionFlanged RF · Threaded (NPT/BSPT) · Wafer
- Flange DrillingASME B16.5 · DIN 2501 · EN 1092-1 · BS 4504
PTFE Sleeved API 599 ASME B16.34 EN 13397 DIN 3202
PP Lined Valve
ASME B16.34 · DIN 3230 · EN 12266
Polypropylene (PP) lined valves — cost-effective alternative to PTFE/PFA for applications involving dilute acids, alkalis, and salts at moderate temperatures. PP-lined ball valves and butterfly valves are widely used in water treatment, effluent, and chemical dilution service.
- Lining MOCPolypropylene (PP-H / PP-R homopolymer or random copolymer)
- Body MOCWCB · CF8 · CI (cast iron)
- Size RangeDN 25 (1″) to DN 300 (12″)
- Pressure RatingPN 6 / PN 10 / PN 16
- Temp. Range0°C to +90°C (continuous) · up to +110°C (intermittent)
- Chemical ResistanceAcids (dilute) · Alkalis · Salts · Bleach (NaOCl) · Chlorinated water
- Not SuitableStrong oxidising acids · Aromatic solvents · Above 100°C continuous
- Valve TypesBall valve · Butterfly valve · Diaphragm valve
- Cost vs. PTFE~40–60% lower cost than PTFE lined equivalent — where conditions permit
PP Lined ASME B16.34 DIN 3230 EN 12266
PVDF Lined Valve
ASME B16.34 · DIN 3230 · EN 12266
PVDF (Polyvinylidene Fluoride / Kynar) lined valves bridge the gap between PP/PVC and PTFE — offering better chemical resistance than PP and higher temperature capability. Excellent for strong acids, halogens, and oxidising environments up to 130°C.
- Lining MOCPVDF (Kynar 500 / Kynar 2800) · Homopolymer or copolymer
- Body MOCWCB · CF8 · CF8M · CF3M
- Size RangeDN 15 (½″) to DN 200 (8″)
- Pressure RatingPN 10 / PN 16 · ANSI Class 150
- Temp. Range-40°C to +130°C (continuous) · up to +150°C (short-term)
- Chemical ResistanceStrong acids (HCl, H₂SO₄, HNO₃ dilute) · Halogens (Cl₂, Br₂) · Bleach · Solvents
- Advantage over PTFEBetter mechanical strength · Lower permeation at high concentration · Weldable (hot gas / socket fusion)
- Not SuitableFuming HNO₃ · Oleum · Amines · DMF · DMSO
- Valve TypesBall valve · Butterfly valve · Check valve · Diaphragm valve
- FDA CompliancePVDF is FDA 21 CFR 177.2510 compliant — suitable for food/pharma
PVDF / Kynar ASME B16.34 DIN 3230 FDA 21 CFR
Lining Materials
Lining Material Comparison
Choose the right lining based on chemical compatibility, operating temperature, pressure, and cost. PTFE is the most versatile; PFA offers superior permeation resistance; PP and PVDF are cost-effective for moderate service.
PTFE
Polytetrafluoroethylene
Max. Temp.+180°C (cont.) / +200°C (short)
Min. Temp.-40°C
Max. PressurePN 16 / ANSI 150
PermeationModerate (porous structure)
Chem. ResistanceNear-universal — excl. molten alkali metals, elemental fluorine
FDA ApprovedYes — 21 CFR 177.1550
Dielectric Const.2.1 (lowest of all plastics)
COF (friction)0.04–0.10 (lowest of solid materials)
Relative Cost★★★☆☆ (moderate)
Best ForAcids · Alkalis · Solvents · Chlorine · General corrosive service
PFA
Perfluoroalkoxy Alkane
Max. Temp.+200°C (cont.) / +230°C (short)
Min. Temp.-60°C
Max. PressurePN 16 / ANSI 150
PermeationLOW — melt-processable, no microporosity
Chem. ResistanceSuperior to PTFE — incl. fuming HNO₃, H₂SO₄ (conc.), HF
FDA ApprovedYes — 21 CFR 177.1550
Surface FinishSmoother than PTFE (injection mouldable)
TranslucencySemi-transparent — visual flow indication
Relative Cost★★★★☆ (higher than PTFE, ~2×)
Best ForHF · Fuming acids · Oleum · Chlorine · Bromine · Ultrapure processes
PP
Polypropylene
Max. Temp.+90°C (cont.) / +110°C (short)
Min. Temp.0°C (brittle below 0°C)
Max. PressurePN 10 / PN 16 (temp. de-rated)
PermeationLow for inorganic chemicals
Chem. ResistanceDilute acids · Alkalis · Salts · NaOCl — not for solvents or oxidisers
FDA ApprovedYes (food-contact PP grades)
UV ResistancePoor — add UV stabiliser for outdoor service
Relative Cost★★☆☆☆ (lowest cost option)
Best ForWater treatment · ETP / STP · Bleach · Dilute acids & alkalis
PVDF
Polyvinylidene Fluoride (Kynar)
Max. Temp.+130°C (cont.) / +150°C (short)
Min. Temp.-40°C
Max. PressurePN 16 / ANSI 150
PermeationVery low — excellent barrier properties
Chem. ResistanceStrong acids (HCl, H₂SO₄) · Halogens · Bleach · Solvents (most)
FDA ApprovedYes — 21 CFR 177.2510
Mech. StrengthHighest among fluoropolymers — abrasion resistant
Relative Cost★★★☆☆ (between PP and PFA)
Best ForChlorine · Bromine · Strong acids · Pharma · Semiconductor
Lining Chemical Compatibility Quick Reference
✓ = Recommended · L = Limited / consult datasheet · ✗ = Not recommended. Always verify with full chemical resistance chart and manufacturer confirmation for specific concentration and temperature.
| Chemical | Concentration | PTFE | PFA | PP | PVDF | Max Temp. Note |
|---|---|---|---|---|---|---|
| Hydrochloric Acid (HCl) | All conc. | ✓ | ✓ | ✓ (up to 35%) | ✓ | PP limit 60°C at conc. >20% |
| Sulphuric Acid (H₂SO₄) | Up to 98% | ✓ | ✓ | ✓ (up to 80%) | ✓ | PP not for fuming / oleum |
| Nitric Acid (HNO₃) | Up to 65% | ✓ | ✓ | L | ✓ (dilute) | PP max 30% · PVDF max 65% cold |
| Fuming HNO₃ / Oleum | Concentrated | ✓ | ✓ (preferred) | ✗ | ✗ | PFA preferred for max resistance |
| Hydrofluoric Acid (HF) | All conc. | ✓ | ✓ (preferred) | ✗ | L (<40%) | PFA/PTFE mandatory for HF service |
| Sodium Hydroxide (NaOH) | All conc. | ✓ | ✓ | ✓ | ✓ | All suitable to rated temp. |
| Chlorine (Cl₂ wet/dry) | All | ✓ | ✓ | L | ✓ | PP only for dilute chlorinated water |
| Sodium Hypochlorite (NaOCl) | Up to 15% | ✓ | ✓ | ✓ | ✓ | All linings suitable |
| Acetic Acid | All conc. | ✓ | ✓ | ✓ | ✓ | All suitable |
| Acetone / Ketones | All | ✓ | ✓ | ✗ | ✗ | Only fluoropolymers suitable |
| Bromine (Br₂) | All | ✓ | ✓ | ✗ | ✓ | PVDF good; PP not suitable |
| Phosphoric Acid (H₃PO₄) | All conc. | ✓ | ✓ | ✓ | ✓ | All suitable |
| Ferric Chloride (FeCl₃) | All | ✓ | ✓ | ✓ | ✓ | All suitable |
| Ammonia (NH₃) | All | ✓ | ✓ | ✓ | L | PVDF check conc. and temp. |
| Toluene / Xylene | All | ✓ | ✓ | ✗ | L | Fluoropolymers preferred for aromatics |
Body Materials
Valve Body MOC
The body MOC provides structural strength — the lining provides chemical resistance. Match body MOC to mechanical and thermal loads, not to chemical compatibility (the lining handles that).
WCB
ASTM A216 WCB · EN 1.0619 · DIN GS-C 25
Carbon steel casting — the most widely used lined valve body material. Low cost, high availability, excellent weldability. External surface painted or coated for atmospheric corrosion protection.
- Tensile Strength485 MPa min
- Yield Strength250 MPa min
- Elongation22% min
- Hardness≤197 HBW
- Temp. Range-29°C to +425°C (body metal)
- Lining Temp. LimitGoverned by lining MOC (PTFE: max +180°C)
- External FinishEpoxy primer + PU topcoat · Galvanised on request
- NACE ComplianceNot applicable (body not in contact with fluid)
CF8
ASTM A351 CF8 · SS 304 cast equiv. · EN 1.4308
Austenitic stainless steel casting equivalent to wrought SS 304. Used where WCB bodies are inadequate due to external corrosive environments (marine, offshore, coastal) or where bare metal contact with process fluid is possible.
- CompositionC ≤0.08% · Cr 18–21% · Ni 8–11%
- Tensile Strength485 MPa min
- Yield Strength205 MPa min
- Elongation35% min
- Temp. Range-196°C to +816°C (body metal)
- Corrosion Resist.Excellent external corrosion resistance — preferred for marine atmosphere
- Wrought Equiv.AISI 304 / UNS S30400 · EN 1.4301
- Test Cert.EN 10204 3.1 / 3.2 on request
CF8M
ASTM A351 CF8M · SS 316 cast equiv. · EN 1.4408
Molybdenum-bearing austenitic SS casting — cast equivalent of wrought SS 316. Superior pitting and crevice corrosion resistance compared to CF8. Preferred for chloride-containing environments and aggressive external conditions.
- CompositionC ≤0.08% · Cr 18–21% · Ni 9–12% · Mo 2–3%
- Tensile Strength485 MPa min
- Yield Strength205 MPa min
- Elongation30% min
- Temp. Range-196°C to +816°C (body metal)
- Pitting Resist.PRE ~24 (vs. ~19 for CF8) — better chloride resistance
- Wrought Equiv.AISI 316 / UNS S31600 · EN 1.4401
- Export MarketsOffshore, Middle East, marine, chemical plant
CF3M
ASTM A351 CF3M · SS 316L cast equiv. · EN 1.4404 cast
Low-carbon version of CF8M — as-welded corrosion resistance without post-weld heat treatment required. Preferred where valves are field-welded into pipework or used in applications sensitive to sensitisation (intergranular corrosion).
- CompositionC ≤0.03% (low carbon) · Cr 17–21% · Ni 9–13% · Mo 2–3%
- Tensile Strength485 MPa min
- Yield Strength205 MPa min
- Key AdvantageNo sensitisation risk — no PWHT required after site welding
- Temp. Range-196°C to +450°C (above 450°C use CF8M with stabilisation)
- Wrought Equiv.AISI 316L / UNS S31603 · EN 1.4404
- Best ForPharmaceutical · Food · Chemical where field welding is required
Body MOC × Lining Type Availability Matrix
| Body MOC | PTFE Lined | PFA Lined | PP Lined | PVDF Lined | Std. Reference | Best Used For |
|---|---|---|---|---|---|---|
| WCB (CS casting) | ✓ Standard | ✓ Standard | ✓ Standard | ✓ Standard | ASTM A216 WCB | General chemical, cost-effective, most common |
| CF8 (SS 304 casting) | ✓ Available | ✓ Available | ✓ Available | ✓ Available | ASTM A351 CF8 | Coastal, marine atmosphere, offshore topside |
| CF8M (SS 316 casting) | ✓ Available | ✓ Available | On request | ✓ Available | ASTM A351 CF8M | Offshore, chemical plant, Middle East export |
| CF3M (SS 316L casting) | ✓ Available | ✓ Available | On request | ✓ Available | ASTM A351 CF3M | Field-weld, pharma, food, sensitisation-sensitive |
International Compliance
Export Standards
All lined valves are pressure-tested, functionally tested, and documented per the specified standard before shipment. Third-party inspection (TPI) arranged on request — SGS, TÜV, Bureau Veritas, Lloyd's, RINA.
ASME / ANSI
American Society of Mechanical Engineers / National Standards
ASME B16.34 ASME B16.5 ASME B16.10 ASME B16.25 ANSI/FCI 70-2 ASME B31.3
API
American Petroleum Institute
API 6D API 609 API 599 API 594 API 602 API 598 (test) API 6FA (fire safe)
DIN / EN
Deutsches Institut für Normung / European Norm
EN 12266-1/2 EN 593 EN 1349 EN 13397 EN 12334 EN 558 EN 1092-1 DIN 3230 DIN 3354 DIN 3356 DIN 3357 PED 2014/68/EU
BS / ISO
British Standards / International Organisation for Standardisation
BS 5351 BS 5155 BS 5152 BS 5153 ISO 5208 ISO 5752 ISO 10631 ISO 17292 ISO 15156 (NACE)
Standard Test & Inspection Requirements
| Test Type | Test Medium | Test Pressure | Duration | Acceptance | Standard Ref. |
|---|---|---|---|---|---|
| Shell / Body Hydro Test | Water | 1.5 × rated pressure | Min. 60 sec (DN ≤ 100) · 120 sec (DN > 100) | Zero visible leakage on body | API 598 · EN 12266-1 · BS 6755-1 |
| Seat Leakage Test (Hydro) | Water | 1.1 × rated pressure | Min. 60 sec | Zero leakage (Class VI / EN Rate A) | API 598 · ANSI/FCI 70-2 |
| Seat Leakage Test (Pneumatic) | Instrument Air / N₂ | 5–7 bar (50–100 psi) | Min. 60 sec | Zero bubbles (bubble-tight) | API 598 · EN 12266-2 |
| Operational (Torque) Test | — | At rated pressure | 3 full open-close cycles | Smooth operation within design torque | API 598 · EN 12266-1 |
| Lining Holiday Test | High-voltage spark test | 5–20 kV (lining thickness dep.) | 100% of lining surface scanned | Zero pinholes / holidays | ASTM D149 / client spec |
| Lining Thickness Check | Ultrasonic gauge | — | 100% of lining surfaces | Min. thickness per drawing (typically 3.0 mm min.) | ASTM E797 / client spec |
| Dimensional Inspection | — | — | All critical dims. | Per ASME B16.34 / valve GA drawing | ASME B16.34 |
| Paint / Coating Inspection | DFT gauge | — | External surfaces | DFT per spec (typically 100–200 µm min.) | SSPC / ISO 8501 |
Export Market — Preferred Standards Guide
| Export Region | Valve Design Std. | Flange Drilling | Face-to-Face | Test Std. | Certification |
|---|---|---|---|---|---|
| USA / Canada | ASME B16.34 · API 6D / 609 | ASME B16.5 (ANSI) | ASME B16.10 | API 598 | ASME · API · UL (fire) |
| Europe (EU/EEA) | EN 12266 · EN 593 / 1349 | EN 1092-1 (PN) | EN 558 | EN 12266-1/2 | PED 2014/68/EU · CE Mark |
| Middle East | ASME B16.34 · API 6D (preferred) | ASME B16.5 (most) · EN 1092-1 | ASME B16.10 | API 598 · ISO 5208 | Aramco / ADNOC / PDO specs |
| Africa | BS 5351/5155 · ASME B16.34 | BS 4504 / EN 1092-1 | BS / EN 558 | BS 6755 · API 598 | EN 10204 3.1 · SABS (SA) |
| Southeast Asia | ASME B16.34 · API (preferred) | ASME B16.5 · JIS B2201 | ASME B16.10 | API 598 | SIRIM (Malaysia) · SNI (Indonesia) |
| Australia / NZ | ASME B16.34 · AS 4041 | ASME B16.5 · AS 2129 | ASME B16.10 | API 598 · AS 4343 | AS / NZS standards |
Engineering Reference
Valve Selection Guide
Use this guide to select the correct valve type, lining, and body MOC for your application. Always confirm chemical compatibility with full resistance chart before final specification.
By Valve Function
| Application | Recommended Valve | Lining | Reason |
|---|---|---|---|
| Isolation / full shutoff | PTFE Lined Ball Valve | PTFE / PFA | Quarter-turn, bubble-tight, low torque — preferred for isolation duty |
| Throttling / flow control | PTFE Lined Globe Valve | PTFE | Precise Cv control, linear or equal % characteristic |
| Large bore isolation (economical) | PTFE Lined Butterfly Valve | PTFE / PFA | Compact, lower cost than ball valve at DN ≥ 150 — suitable for PN 10/16 |
| Backflow prevention | PTFE Lined Check Valve | PTFE | Self-actuating, no operator required — swing or wafer spring type |
| Slurry / viscous corrosive media | PTFE Sleeved Plug Valve | PTFE sleeve | No dead zones, self-draining, smooth bore — suited for settling / crystallising media |
| Aggressive HF / fuming acid | PFA Lined Ball Valve | PFA | Lowest permeation rate — mandatory for HF, fuming HNO₃, oleum service |
| Dilute acids / water treatment | PP Lined Ball or Butterfly | PP | Cost-effective for non-aggressive service up to 90°C |
| Chlorine / bromine / bleach | PVDF or PTFE Lined Valve | PVDF / PTFE | Halogen resistance — PVDF preferred for mechanical strength |
| Food / pharmaceutical | PFA or PVDF Lined Valve | PFA / PVDF | FDA compliance, smooth bore, hygienic design, electropolishable |
| Zero-emission / fugitive emission | Bellows Seal Globe Valve | PTFE | Bellow seal eliminates stem packing emission path — TA-Luft / ISO 15848 compliant |
Key Lined Valve Ordering Information Required
| Parameter | What to Specify | Example |
|---|---|---|
| Valve Type | Ball / Butterfly / Globe / Check / Plug | PTFE Lined Ball Valve, Full Bore |
| Size | DN (mm) or NPS (inches) | DN 50 (2 inch) |
| Pressure Rating | PN or ANSI Class | PN 16 or ANSI Class 150 |
| Lining Material | PTFE / PFA / PP / PVDF | PTFE lining, 4 mm min. thickness |
| Body MOC | WCB / CF8 / CF8M / CF3M | WCB (carbon steel casting) |
| End Connection | Flanged (RF/FF) / Wafer / Threaded / BW | Flanged RF per ASME B16.5 |
| Flange Drilling | ASME B16.5 / DIN PN / BS / EN 1092-1 | ASME B16.5 Class 150 (ANSI) |
| Operation | Lever / Gear / Pneumatic (DA/SR) / Electric | Pneumatic DA actuator, 5 bar supply |
| Design Standard | ASME B16.34 / API / DIN / EN / BS | ASME B16.34 |
| Test Standard | API 598 / EN 12266 / BS 6755 | API 598 shell & seat test |
| Certificate | EN 10204 3.1 / 3.2 / PED / TPI | EN 10204 3.1 with PMI on body |
| Service / Medium | Fluid name, concentration, temp., pressure | 98% H₂SO₄, 80°C, 8 bar |
| Special Requirements | Fire safe / ATEX / TA-Luft / Low temp | API 6FA fire-tested, ATEX II 2G |
Get in Touch
Request a Quote
Tell us the valve type, lining, body MOC, size, pressure class, and service medium — we'll respond within 24 hours with pricing, datasheet, and lead time.
- EN 10204 3.1 / 3.2 material test certificates supplied as standard
- API 598 / EN 12266 pressure test reports with every shipment
- 100% lining holiday (spark) test and thickness check on all valves
- PMI (Positive Material ID) on body and trim for alloy grades
- Third-party inspection — SGS, TÜV, BV, Lloyd's, RINA on request
- PED 2014/68/EU CE marking for European export
- Fire-safe design per API 6FA / ISO 10497 on request
- Actuated valve packages — pneumatic, electric, gear assembled and tested
- Export packing — wooden crates, moisture protection, sea freight ready
