API 608 ASTM A351 CF3 Lug Butterfly Valve, EN 593, DN400, PN16 · WCB, CF8M, GGG40 · SMD Flow Control Valve Engineering
Size
DN400 (16")
Rating
Class 150 / PN16
Temp
-20°C to +150°C
Design
API 608 / project standard
  • API 608
  • project standard

Butterfly Valves

API 608 ASTM A351 CF3 Lug Butterfly Valve, EN 593, DN400, PN16

Summary

ASTM A351 CF3 Lug Butterfly Valve, EN 593, DN400, PN16 is designed for compact flow isolation in water, HVAC and industrial piping. flanged ends support bolted pipeline integration and inspection access. Carbon-steel pressure parts suit general hydrocarbon and utility service when corrosion allowance and coating are defined on the data sheet. Typical duties include oil & gas, chemical processing, general industrial service. Confirm end connection, trim, actuation and inspection scope against the approved project data sheet.

Features

Product features

  • Eccentric Butterfly Valve design
  • Bubble-tight soft-seat sealing

Advantages

Selection advantages

  • Select NPS and pressure class inside the published catalogue envelope; freeze the working size on the data sheet before GA release.
  • Design basis and face-to-face follow the standards shown in the technical grid; do not assume a single standard covers every option.

Plant application

Family plant duties. This SKU still uses the size, class, materials and tests listed on this page.

Water & wastewater large-bore isolation

Function
Isolation or modulating duty on large-diameter water lines.
Medium family
Raw water, potable water or wastewater — lining/seat material confirmed against the water chemistry.
Pressure & temperature
Typical concentric/double-offset ratings follow API 609. Large-bore supply is limited to 56 in / DN1400 site capability; SKU size still governs.
Applicable standards
API 609, EN 593, ISO 5752 and API 598 as applicable.
Send with RFQ
DN, pressure class, wafer/lug/flanged, seat material, operation and leakage class.
Related application

Chemical / process isolation

Function
On/off or limited control where a butterfly is accepted by the piping class.
Medium family
Process chemicals and utilities. Elastomer vs metal seat follows medium and temperature.
Pressure & temperature
Temperature and tightness class confirmed on the datasheet. Do not assume fire-safe or NACE unless specified.
Applicable standards
API 609 / ASME B16.34 / API 598. Project specification controls seat and leakage.
Send with RFQ
Medium, temperature, seat/disc material, ends, operation and test documents.
Related application

High-performance / triple-offset (when specified)

Function
Higher-temperature or tighter shutoff isolation when a triple-offset design is specified.
Medium family
Steam, hydrocarbons or utilities listed on the project datasheet.
Pressure & temperature
Offset geometry, class and leakage class are SKU-specific. Fire-safe testing only when specified.
Applicable standards
API 609 Category B, ASME B16.34 and the project fire-test specification when required.
Send with RFQ
Class, size, offset type, leakage class, fire-test flag, ends and actuator torque data.
Related application

Engineering hub

Technical data

Design & test

DesignAPI 608 / project standard
Face-to-faceISO 5752 / EN 558
TestingAPI 598
TestingAPI 598 / ISO 5208 to the class stated on the ITP
ConnectionRF, BW, SW or threaded options

Parts and materials

MaterialWCB, CF8M, GGG40
ConnectionRF, BW, SW or threaded options
  • Eccentric Butterfly Valve design
  • Bubble-tight soft-seat sealing

Product FAQ

Engineering answers

What size and pressure range is the ASTM A351 CF3 Lug Butterfly Valve, EN 593, DN400, PN16 supplied in?

This listing is DN400 (16"), Class 150 / PN16. Confirm the final NPS, class, bore and trim against the approved data sheet.

Which documentation is included in a standard EPC MDR package?

When specified: approved GA drawing, EN 10204 3.1 material certificates, hydrostatic/pneumatic test records to the applicable test standard, NDE reports required by the ITP, coating records if painted, and the ITP release note. CAD/STEP models and bilingual datasheets are issued after size, class and trim are frozen — they are not generic public downloads.

Which design and test standards apply to the ASTM A351 CF3 Lug Butterfly Valve, EN 593, DN400, PN16?

Design reference: API 608 / project standard. Face-to-face: ISO 5752 / EN 558. Pressure test / inspection: API 598. NACE, fire-safe or fugitive-emission clauses are quoted only when the purchase specification requires them.

Project engineering

Need a custom bore, CRA overlay, or actuator sizing?