BUTTERFLY VALVES KKD-81 L/W

BUTTERFLY VALVES KKD-81 L (Lug)

Centric Butterfly Valves KKD-81 Lug are a cost-effect compact solution for general purpose applications. With multiple rubber seats to choose from.

In a center lined butterfly valve, the stem is centered in the middle of the disc and the disc is centered in the bore.
In this type of valve, the disk first interacts with the seat at about 85° for a 90° rotation.
Center lined butterfly valves are widely used in low-pressure applications.

The lug body type of the butterfly valve design is identical to the 3-piece ball valve, where one end of the pipeline can be replaced without affecting the other side of the valve.
This can be accomplished using threaded inserts, flanges, and two sets of lugs (bolts) that do not use nuts so that each flange has its bolts.
It is not necessary to shut down the entire plant to inspect, clean, repair or replace the butterfly valve.

FEATURES

Suitable for use in HVAC, irrigation, industrial applications where positive shutoff is required
Single through-put shaft provides most economical pricing
10 position lever or gear operation
Alloy material available on request

STANDARDS

End dimensions acc. to DIN2633
Inspection test acc. to EN12266

LIMITATION

Do not use EPDM when hydrocarbons are present.
Kindly anticipate increased torque for PTFE coated disc + PTFE seat option; gear operation recommended for sizes 4”.
End-of-line service at half rating

OPTIONS

Double “half pin” style available for increased performance and lifecycle
Coated disc available in: rubber, PTFE, nylon

BUTTERFLY VALVES KKD-81 W (Wafer)

Centric Butterfly Valves KKD-81 Wafer are a cost-effect compact solution for general purpose applications.

With multiple rubber seats to choose from. In a center lined butterfly valve, the stem is centered in the middle of the disc and the disc is centered in the bore.
In this type of valve, the disk first interacts with the seat at about 85° for a 90° rotation.
Center lined butterfly valves are widely used in low-pressure applications.

The wafer body type of the butterfly valves has been designed to keep a tight sealing, to protect against bi-directional pressure differentials, and to prevent backflow in devices built for uni-directional flow.
This is accomplished by using a tight-fitting cap, such as an O-ring, as well as a smooth valve face on both the downstream and upstream parts of the valve.