Wafer butterfly valve D671X-161
Wafer butterfly valve D671X-162
Wafer butterfly valve D671X-163
Wafer butterfly valve D671X-164

Wafer butterfly valve D671X-16

Size Range: DN80

Pressure: PN16

Body Materials: Cast iron

Seat Materials: EPDM/NBR

Disc Materials: Ductile iron/SS304/SS316

Stem Materials: SS420/SS304/SS316

Introduction

Compact & Lightweight
The valve body is only 50% the thickness of a flanged valve, reducing weight by 40%-60%, making it ideal for space-constrained piping systems (e.g., ships, compact equipment).

Easy Installation & Cost-Effective
It is directly clamped between two pipe flanges and secured with bolts, saving on costs for flanges, bolts, and other fittings. The overall cost is 20%-30% lower than that of flanged valves.

Bidirectional Sealing
The medium can flow in both directions, eliminating the need to distinguish between inlet and outlet, thus simplifying pipeline design.

Low Flow Resistance
The streamlined disc design provides a large flow passage area, resulting in a low flow resistance coefficient (Kv value) and reducing system energy consumption.

Simple Maintenance
For online replacement of seals or discs, simply loosen the pipe flange bolts to remove the entire valve without disassembling the pipeline

Parameters

Name Design and manufacture Face to face Length Pressure Test Side flange drilling
Reference Standard DIN 3354 EN558 EN12266 DIN2633
 
Name Body Disc Shaft Seat Actuator
Material Cast iron Ductile iron SS420 EPDM Pneumatic actuator
 
Norminal pressure Gas seal test(MPa) Water seal test (MPa) Shell seal test(MPa) Working tempreature Applicable medium
PN16 0.6 1.76 2.4 -10...+110℃ Water, gas, slurry, etc

Application
Related Product

Let’s make something great together.Feel free to contact us by telephone or email and we will be sure to get back to you as soon as possible.

EMAIL US