Square or rectangular port sliding wall
penstocks sealed on all 4 sides. Used

for on-off or control applications in wells,
tanks, pipe outlets, etc.
Carbon or stainless steel fabricated

construction, with tight sealing by means

of elastomer seals.

Available in a wide range of dimensions

and for many different pressure heads.

Actuator: Handwheel, Pneumatic, Electric

or Hydraulic, with a wide variety of actuator

extensions available.