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Double Offset Butterfly Valve – Series 7400

Double Offset Butterfly Valve

Series - 7400

Dembla Double Offset Butterfly Valve Are Available In Wide Range Of Materials, Sizes, Trim Forms And Other Features. A Comprehensive List Of Features Is Available For Immediate Navigation

Dembla High Performance Butterfly Valves are available in Wafer and Lug type designs conforming to API 609 standard. The Disc construction is Double Offset providing excellent controllability, bubble tight shut off, greater seat life and smooth operation.

Well supported shaft with heavy duty bearings ensure perfect alignment of seat and disc for smooth and trouble free operations. Valves have been rigorously tested to ensure industry performance requirements.

Size & Rating


PN6

128 Inch

DN 3200

PN10

80 Inch

DN 2000

#150

60 Inch

DN 1500

#300

36 Inch

DN 900

Features


Valves designed to achieve bi-directional tight shut off for sizes upto 3000 NB ( with Elastomer soft seat)

Wide choice of various seat moe: EPDM I VITON I PTFE I RPTFE (GFT) I SS316

Anti Blow out stem design

Wafer , Lugged and Double Flanged design

Positioners

Standard


Design

API-609/ASME-B-16.34

F/F

API-609/EN 558

Testing

API-598/EN-12266, FCI 702

Fire Safe

API-607

End Connection

FLANGE/WAFER/ LUG-B16.5,B16.47,EN1092-1

BUTTWELD-B16.25

Material


MATERIAL

CASTING

FORGING

CARBON STEEL

A216 Gr. WCB, A217 Gr. WC6, A217 Gr. WC9

A105

LOW TEMP CARBON STEEL

A352 Gr. LCB, A352 Gr. LCC

A350 Gr. LF2

STAINLESS STEEL

A351 Gr. CF8M, A351 Gr. CF8, A351 Gr. CF3M, A351 Gr. CF3

A182 Gr. F316, A182 Gr. F304, A182 Gr. F316L, A182 Gr. F304L

DUPLEX

A995 Gr. 4A

A182 Gr. F51

SUPERDUPLEX

A995 Gr. 5A, A995 Gr. 6A

A182 Gr. F55

HAST C

A494 Gr. CW-12MW

B574 UNS N10276

ALLOY 20

A351 Gr. CN7M

B462 Gr. N08020

BRONZE

B62 Gr. C83600

ALUMINIUM BRONZE

B148 Gr. A

B150 Gr. C62300

NICKEL AL BRONZE

B148 Gr. D

B150 Gr. C62300

TITANIUM

B381

B381

MONEL

MONEL 400, MONEL K-500

MONEL 400, MONEL K-500

NICKEL

INCONEL 625, INCONEL 825, INCONEL 718, INCONEL X750

Specifications


Valve Sizes

2" (50mm) to 120" (3000mm)

Ratings

Class 150 , Class 300 ,Equivalent to DIN

PN2.5, PN6, PN10, PN16, PN25, PN40

Body Style

Flanged ( 2" to 128" Only) & Lugged & Wafer ( 2" to 80" Only)

Seat Leakage Option

Class VI for PTFE, EPDM, Viton Soft Seats,Class IV for Flexible Metal Seats

Flow Direction

Bi Directional

Conformity To Codes


Design & Manufacturing

API 609 Category B

BS 5155

API 607 (Fire Safe)

Face to Face Dimensions

API 609

BS 5155

BS EN 558-1

ISO 5752

Flange Dimensions

ANSI B 16.5 (DN 50 to DN 600)

ANSI B 16.47 (DN 650 to DN 1500)

Pressure Temperature Rating

ANSI B 16.34

Valve Inspection

API 598

FCI 70-2

Application Industries


Double Offset Butterfly Valve application Chemicals & Natural Gas

Chemicals & Natural Gas

Double Offset Butterfly Valve application Power Plants

Power Plants

Double Offset Butterfly Valve application Sugar Mills

Sugar Mills

Double Offset Butterfly Valve application Paper & Pulp

Paper & Pulp

Double Offset Butterfly Valve application Water<

Water

Double Offset Butterfly Valve application Food & Beverage

Food & Beverage

Double Offset Butterfly Valve application Petrochemicals

Petrochemicals

Double Offset Butterfly Valve application Oil & gas

Oil & gas

Double Offset Butterfly Valve application Gas Process

Gas Process

Double Offset Butterfly Valve application Piping Systems

Piping Systems

Double Offset Butterfly Valve application Ship Building

Ship Building

Double Offset Butterfly Valve application FPSO

FPSO

Double Offset Butterfly Valve application Pharmaceuticals

Pharmaceuticals

Double Offset Butterfly Valve application Mining

Mining

Double Offset Butterfly Valve application Metal & Steel

Metal & Steel