4″-150LB-Lugged PFA Lined Butterfly Valve – Technical Data Sheet (Corrected – Category A)
- Product Overview
The 4″-150LB-Lugged PFA Lined Butterfly Valve is a lug‑style butterfly valve with a full PFA (perfluoroalkoxy) lining. It is designed for severe corrosive chemical services, semiconductor ultrapure water systems, and pharmaceutical applications. The lugged body allows independent bolting to each pipeline flange, enabling dead‑end service and easy downstream line removal for maintenance. All wetted surfaces are completely encapsulated by precision‑molded PFA lining, ensuring no contact between the process media and metal parts, and providing bidirectional bubble‑tight shut‑off.
Key Features:
- Full PFA lining – Valve body cavity, disc, and stem contact surfaces are completely encapsulated with PFA; excellent corrosion resistance, no permeation risk.
- Bidirectional zero leakage – Spherically molded PFA lining mates with disc for ISO 5208 Rate A / ANSI Class VI shut‑off.
- Blow‑out proof one‑piece disc/stem – Integral disc and stem eliminates mechanical connections, avoiding lining damage.
- ISO 5211 mounting pad – Top flange conforms to ISO 5211 for direct mounting of manual, electric, or pneumatic actuators.
- 15 kV high‑voltage spark test – All lined components are 100% spark tested at 15 kV to ensure pinhole‑free lining.
- Lugged body advantage – Supports dead‑end service; downstream piping can be removed without draining the upstream line.
- Technical Specifications
Parametr | Specyfikacja |
Nominal size (NPS) | 4″ (DN100) |
Pressure rating | Class 150LB (PN10 / PN16) |
Valve type | Lugged, concentric (center‑line) |
Temperature range | -29°C ~ +160°C (standard PFA); -20°C ~ +200°C (high‑performance PFA/TFM) |
Vacuum capability | Suitable from -10°C to +160°C, down to 0.0002 psia |
Leakage rating | Bidirectional zero leakage, ISO 5208 Rate A / ANSI Class VI |
Flow direction | Bidirectional |
Mounting orientation | Any angle |
- Design & Manufacturing Standards
Item | Standard |
Projekt | MSS SP-67 / MSS SP-115 / API 609 / ISO 5752 |
Face‑to‑face dimension | API 609 Category A / ASME B16.10 / ISO 5752 Series 20 |
Flange drilling | ASME B16.5 Class 150 / ASME B16.1 Class 125 / PN10 / PN16 / JIS 10K |
Shell wall thickness | ASME B16.34 |
Pressure testing | API 598 / ISO 5208 / EN 12266‑1 |
Fugitive emissions | ISO 15848‑1 / ISO 15848‑2 / TA‑Luft |
Fire safety | API 607 (optional) |
Top mounting flange | EN ISO 5211 |
Leakage class | ANSI FCI 70‑2 Class VI / ISO 5208 Rate A |
Explosion protection | ATEX 2014/34/EU (Zone 0,1,2 – optional) |
Food contact | FDA compliant / EC 1935/2004 (optional) |
SIL rating | SIL 3 capable |
- Valve Dimensions (4″ / DN100, Class 150LB, Category A)
Dimension | Value |
Face‑to‑face length L | According to API 609 Category A / ASME B16.10 (short pattern) |
Number of bolt holes | 8 |
Bolt hole diameter | 0.75″ (approx. 19 mm) |
Flange bolt circle diameter | 7.50″ (approx. 190.5 mm) |
Mating flange bolt size | 5/8″ |
Lug type | Integral over‑molded 316 stainless steel lugs |
ISO 5211 top flange | Standard |
- Main Component Materials
Część | Standard Material | Optional Material |
Body (external) | Ductile iron / Cast steel (WCB) | Stainless steel (CF8/CF8M) |
Lining (internal) | PFA (perfluoroalkoxy), molded | PTFE / FEP |
Disc | Stainless steel (304/316) + PFA over‑molded | Full PFA‑lined stainless steel |
Trzon | Stainless steel (304/316/2Cr13), blow‑out proof design | Hastelloy / Monel |
Seat seal | PFA (integral with lining) | Elastomer backup (EPDM/SIR) |
Stem packing | Live‑loaded self‑adjusting V‑ring set | PTFE / graphite packing |
Fasteners | Stainless steel (304/316) | Alloy steel |
- PFA Lining Material Properties
Property | Typical Value |
Density | 2.14 g/cm³ |
Continuous service temperature | -200°C ~ +260°C |
Melting range | 300°C ~ 315°C |
Shore hardness D | 60 |
Tensile strength | 13.8 MPa (at 23°C) |
Water absorption (24 h) | ≤0.030% |
Flammability rating | UL 94V‑0 |
Chemical resistance: PFA offers outstanding chemical resistance at high temperatures. It withstands strong mineral acids, strong alkalis, inorganic oxidizers, and most organic compounds. Only molten alkali metals, gaseous fluorine, and some complex halides (e.g., chlorine trifluoride) will attack PFA.
Thermal aging & creep resistance: PFA exhibits excellent creep resistance and thermal aging stability, ensuring long‑term sealing reliability under high‑temperature service.
- Pressure‑Temperature Rating
Temperature Range | Maximum Allowable Working Pressure (Class 150LB) |
-29°C ~ +38°C | 285 psi (19.6 bar) |
+50°C | 260 psi (17.9 bar) |
+100°C | 235 psi (16.2 bar) |
+150°C | 205 psi (14.1 bar) |
+160°C | 190 psi (13.1 bar) |
+200°C (high‑performance PFA) | 150 psi (10.3 bar) |
Note: Ratings are based on ASME B16.34 pressure‑temperature tables and limited by the PFA lining material. Always verify suitability with actual service conditions.
- Performance Parameters
Parametr | Value |
Flow coefficient (Cv) | Approx. 929 (typical for 4″ butterfly valve) |
Shell test pressure | Per API 598, ≥1.5× rated pressure (ambient) |
High‑pressure seat test | 1.1× rated pressure (ambient) |
Low‑pressure air seat test | 0.6 MPa (bubble‑tight, zero visible leakage) |
Maximum differential pressure | Full rated differential (bidirectional) |
Operating torque | Low‑friction PFA lining design; torque value depends on actuator selection |
Suitable media | Strong acids (sulfuric, hydrochloric, nitric, hydrofluoric), strong alkalis, chlor‑alkali solutions, ultrapure water, organic solvents, corrosive gases |
Unsuitable media | Fluids containing hard solid particles (may damage PFA lining) |
- Actuator Interface & Operation
Item | Specyfikacja |
Top mounting interface | EN ISO 5211 standard top flange |
Manual operation | Lever handle (≤DN200) / Worm gear (≥DN250) |
Pneumatic operation | Double‑acting / Spring‑return (single acting) |
Electric operation | On‑off / Modulating |
Mounting orientation | Any angle; horizontal pipeline with vertical actuator stem is recommended for easy access |
- Inspection & Testing
Test | Standard | Acceptance Criterion |
Shell strength test | API 598 / ISO 5208 | No visible leakage or structural damage |
High‑pressure hydrostatic seat test | API 598 / ISO 5208 | Zero visible leakage |
Low‑pressure pneumatic seat test | API 598 / ISO 5208 | Zero visible leakage, ISO 5208 Rate A |
Lining integrity | 15 kV high‑voltage spark test | No pinhole defects |
Fugitive emissions test | ISO 15848‑1 / ISO 15848‑2 | As per standard class |
Fire safety test | API 607 | Pass (optional) |
- Typical Applications & Industries
- Chemical & petrochemical – Strong acids, strong alkalis, chlor‑alkali solutions, organic solvents
- Semiconductor manufacturing – Ultrapure water, high‑purity chemical delivery
- Pharmaceutical industry – Active pharmaceutical ingredient (API) synthesis, high‑purity process media
- Food & beverage – FDA‑compliant sanitary applications
- Water treatment – Reverse osmosis (RO), ultrafiltration, UV disinfection systems
- Vacuum service – Chemical vacuum lines
- Electroplating & surface finishing – Pickling tanks, galvanizing lines
- Hydrometallurgy & mining – Corrosive slurry lines
- Important Notes
- Media cleanliness – Avoid fluids containing hard solid particles (crystals, weld spatter, sand, etc.) which may scratch the PFA lining.
- Installation – Ensure proper alignment. Tighten flange bolts evenly and in a cross pattern. Lugged valves can be installed independently on either flange; downstream piping can be removed without draining the upstream system.
- Temperature limits – Standard PFA: 160°C max; high‑performance PFA/TFM: up to 200°C max. Do not exceed the rated temperature.
- Pressure limits – Due to PFA mechanical strength, a Class 150LB valve should be used within PN16 (approx. 232 psi) maximum.
- Vacuum service – Suitable within -10°C ~ +160°C (limited by lining elastic recovery).
- Spark testing – All lined components are 100% high‑voltage spark tested at 15 kV before shipment.
- Actuator sizing – Select actuator based on actual operating frequency, temperature, differential pressure, and break‑away torque.
- Storage & transport – Store in dry, ventilated area away from direct UV exposure. Protect from impacts that could damage the PFA lining.
This technical data sheet is prepared in accordance with API 609 Category A, MSS SP‑67, ASME B16.10, ISO 5208, ISO 15848, and related standards. Actual specifications may vary slightly between manufacturers. Always verify final details with the supplier before selection.
GWARANCJA:
SAVVY VALVES zobowiązuje się do dostarczania wyjątkowej jakości produktów i bezproblemowej obsługi posprzedażowej. Gwarantujemy, że nasze zawory zapewnią minimalny okres eksploatacji wynoszący 12 miesięcy, podczas którego dostarczymy bezpłatnie wszystkie niezbędne części zamienne i szczegółowe instrukcje dotyczące konserwacji. W okresie gwarancyjnym, jeśli wystąpią jakiekolwiek uszkodzenia niespowodowane przez człowieka, wymienimy komponenty bezpłatnie i zapewnimy profesjonalne wsparcie techniczne. Po wygaśnięciu gwarancji klienci muszą zapłacić jedynie za koszt części zamiennych, nadal korzystając z usług konserwacyjnych po obniżonych cenach. Naszym celem jest pomoc klientom w obniżeniu kosztów operacyjnych i zwiększeniu wydajności produkcji dzięki niezawodnej jakości i kompleksowemu wsparciu posprzedażowemu. Niezależnie od tego, czy chodzi o zapytania techniczne, czy potrzeby konserwacyjne, nasz zespół ekspertów odpowie szybko, aby zapewnić, że Twój system zaworów zawsze będzie utrzymywał optymalną wydajność.