API · ASME · DIN · EN standard industrial valves
Butterfly Valves product range
Quarter-turn valves with a rotating disc, compact for large diameters in utility and process isolation.
Last updated: 2026-10
Product family
Wafer Butterfly Valves
Wafer butterfly valves sandwich between the line flanges, giving pipeline isolation with the shortest face-to-face and lowest weight per diameter of the common…
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Lug Butterfly Valves
Lug butterfly valves carry threaded lugs around the body so the disc can isolate one side of the line while the other stays flanged off — the dead-end service…
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Double Flanged Butterfly Valves
Double flanged butterfly valves bolt to the pipe on both faces with their own integral flanges, so they suit buried, water-works and pump-station lines where a…
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Double Offset Butterfly Valves
Double offset butterfly valves move the shaft off both the centreline and the plane of the seat, so the disc lifts clear of the seat almost immediately on…
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Triple Offset Butterfly Valves
Triple offset butterfly valves add a third, conical geometry to the double-offset disc so the seat touches only at the final degrees of closure — metal-to-metal…
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Concentric Butterfly Valves
Concentric butterfly valves keep the stem centered in the disc and the disc centered in the bore, so the rubber-seated disc bears evenly all round — the…
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Jacketed Butterfly Valves
Jacketed butterfly valves keep media that solidifies, crystallises or thickens at ambient temperature in a flowable state: the body carries a full heating…
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Documents
Ask for the documentation set with the inquiry — typical items (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
Send the medium, temperature, pressure, size and connection for a quotation-ready inquiry. Lead time, MOQ and price are confirmed at quotation, together with the documents to be supplied with the order.
Sample & supply
Supply terms, order quantities and lead time are agreed per order — state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, and keep end-face protectors on until installation; storage limits and shipping arrangements for the selected materials are confirmed at quotation.
Knowledge: selection guides
Frequently asked questions
What standards govern the design and testing of butterfly valves?
The published specification for this family lists API 609, ASME B16.34, MSS SP-67 (where applicable), EN 593, BS 5155 as the design standards. Testing follows API 598.
What sizes and pressure ratings are available for butterfly valves?
The published size range is DN40 to DN2000, and the published pressure ratings are PN10 to PN63, ANSI Class 150 to Class 1500. Availability of a specific size and rating is confirmed at quotation.
What materials are butterfly valves available in?
The published specification lists body materials: WCB (ASTM A216), CF8, CF8M (ASTM A351), F316L (ASTM A182), F51/2205 duplex (ASTM A182), F53, F55/2507 super duplex (ASTM A182), C95400, C95800 aluminium bronze (ASTM B148). Material availability for a specific size and rating is confirmed at quotation.
What end connections do butterfly valves support?
The published specification lists Wafer, Lug, Flanged as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for butterfly valves include?
The governing standard and class, nominal size, body and seat materials, the service medium with temperature, and the destination — anything missing is confirmed during quotation.