TH-BTV-DF Double flange butterfly valve (TH-BTV-DF) Description

Area of application

Marine industry, Water supply & drainage, fire fighting, shipbuilding, water treatment and other systems

Data sheet of Double flange Butterfly valve

TYPE:Double flangedSIZE & CONNECTIONS:DN50 to D1200MEDIUM:Air, Inert Gas, Oil, Seawater, Waste water, WaterMATERIALS:Cast Iron / Ductile Iron/ Carbon Steel / Stainless
Steel / Alu BronzePRESSURE RATING:PN10, PN16TEMPERATURE:-30°C to 200°CSEAT/LINING:Replaceable / Bonded vulcanized Liner
NBR/EPDM/VITON, PTFE/PFA full linedCERTIFICATES & APPROVALS:DNV-GL, Lloyds, DNV, ABS, BV Type Approval
3.1 & 3.2 Cert (on request)

Standards

Design and Manufacture Conform to EN 593、 API609

Flange dimensions Conform to EN 1092-2 PN10

Face to Face dimensions Conform to EN558 series

Topwork’s dimensions Conform to ISO5211

Testing Conform to API598、EN12266-1

Material of Parts

PART NAMEMaterialBODYASTM A536 65-45-12/ASTM A126 B
EN-JL 1040 (GG-25)
EN-JS 1030 (GGG-40)
EN-JS 1049 (GGG 40.3)
Stainless steel (1.4408)
Alu-BronzeDISC / PLATEDI+NI,CF8/CF8M,C954/C958
EN-JS 1030 (GGG-40)
Stainless steel (1.4408)SHAFT / STEMSS431/SS420/SS410/SS304/SS316SEAT / LININGNBR/EPDM/VITON /PTFE/PFATAPER PINSSS416/SS316BUSHINGBRASS/PTFEO-RINGNBR/EPDM/VITON /PTFEKEYSTEEL

Actuation

Worm-gear/hand-wheel

Electric-actuator

Pneumatic-actuator

Hydraulic-actuator

Double flange butterfly valve features

Simple structure and easy operation

Easy installation and good sealing

Long service life and high reliability

Good interchangeability of parts and cost saving

Wafer type butterfly valve with concentric design

Using backless structure, Rubber fusion bonded on valve body

Replaceable, resilient seat

Streamlined disc, one-piece stem

Approved and registered by VdS, DVGW

Related types of butterfly valves:

We have other types of butterfly valves: wafer butterfly vlave, Lug type butterfly valve, U flange butterfly valve, fluorine lined PTFE butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valves  used in Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with Nominal Diameter of DN50 to DN1200, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, BV, API, ABS, CCS. Standards: EN 593, API609, API6D