The FLSmidth Type SK Two-way Valve is available in eight standard sizes; 3 through 6- inch (75 through 150 mm) valves match I.D. of standard pipe; 8 through 14-inch (200 through 350) match I.D. of standard Schedule 30 pipe. Available hand or left hand mounting.

Design for 400°F Max. temperature

Body -Durable cast iron construction.

Disc -The internal mechanism works on the sliding disc and port principle. Hardened seats and discs resist abrasion and are lapped to maintain a positive seal at the closed port.

Motor -Motor operation features a built-in mechanical brake for accurate positioning of the valve seal disc. Motor electrical requirements are 3 phase, 60 Hz., 230/460 V.

Air - Heavy-duty air cylinder actuator with dual solenoid, 120V NEMA 4, pre-piped

Accessories -Limit switches for position indication are standard on motor-operated valves; optional on manually operated valves.

Special Application -High temperature 850°F (455°C), NFPA-85F design, alternate materials, voltages.
Unit of Measure


Body Material

N/A Durable Cast Iron


N/A 3 in.


N/A Manual

Gear Motor

N/A 3 phase, 60 Hz, 230/460 V

Max. Temperature

N/A 850 ºF455 ºC

Mounting Type

N/A Standard Right Hand Mounting


Dimension A

N/A 4"

Dimension B

N/A 21 5/8"

Dimension C

N/A 7 7/8"

Dimension D

N/A 25 3/4"

Dimension E

N/A 6"

Dimension F

N/A 7 1/2"

Dimension G

N/A 15 1/4"

Dimension H

N/A 4"

Dimension J

N/A 3/4"

Dimension K

N/A 3/4"

Dimension L

N/A 9 3/4"

Dimension M

N/A 7 1/2"


N/A The FLSmidth Type SK Two-way Pipeline Valve provides positive and dependable switching of material flow in pressure pneumatic conveying pipelines. Numerous applications suitable for a wide variety of products such as cement, limestone, bentonite, barite, talc and other similar ground or pulverized materials. Available for manual or electric motor operation.