141 Model: One-piece Wafer-Style Valves

143 Model: Companion Lug Valves

Apollo 141/143 Series butterfly valves offer an economical design that’s ideal for use in industrial and HVAC/mechanical applications. These general purpose valves offer reliable performance in all types of water: hot and cold, treated and untreated and for such tasks as ON/OFF and throttling, control isolation, flow balancing and diversion.

U.S. Coast Guard Category A Approved

 2″ to 12″   @   200 psig
14″ to 24″   @   150 psig

Materials & Specifications

  • Available in wafer and lug bodies.
  • Compatible with ANSI 125/150 flanges.
  • Wafer body features four alignment holes.
  • Pressure ratings for tight shut-off at temperatures up to maximum limit of the seat material.
  • Ideal for ON/OFF and throttling service.
  • Through-Stem design with taper pin connecting stem to disc.
  • Encapsulated disc and stem: no exposure of body or stem to line media.
  • Designed to fully comply with MSS SP-67 and API 609.
  • Valves 2" to 24" meet the intent and have passed AWWA C-504-87 Section 5 proof of design tests.
  • Maintaining optimum field performance requires no field adjustment.

Body Design

  • 141 Model: a one-piece wafer design with flange locating holes; 143 Model: valves are full lug with tapped lugs, to ANSI 125/150 drillings. Face-to-face dimensions meet universal interchangeability standards outlined in MSS SP-67 and API 609.

Phenolic Backed Seat

  • The valves are equipped with a stretch-resistant, non-collapsible blowout-proof seat.

Seat Facing

  • Design of the seat facing eliminates the need to use flange gaskets with the valves, therefore, providing bubble-tight shut off.

Mounting Flange for Actuator

  • The valves cast-in top plate is universally designed to ISO 5211 standard dimensions for direct mounting of Apollo Compactorque actuators and manual operators.

Single-Piece Through Shaft

  • To assure positive disc positioning and dependable performance, the valves feature a one-piece “Double D” through shaft design.

Weather Seal

  • All models are equipped with a shaft weather seal.

Smooth Finish Disc Flats

  • Interfacing with seat flats assures a high efficiency seal and prevents shaft-area leaking.

Precision Taper Pins

  • Pins provide a vibration-proof, positive shaft-to-disc connection.

Three Bushings

  • Support shaft at three locations to enhance shaft alignment and support actuator.

Profiled Disc Design

  • Precision disc assures bubble-tight shut-off with minimal torque and longer seat life.

Shaft Seal

  • Bonding the elastomer to the phenolic backing ring guards against distortion, a frequent cause of shaft leakage.

Dead End Service

  • All 2" to 24" 143 Model valves are equipped with retainer screws for dead end service: 2'' through 12'' to 200 psig, 14'' through 24'' to 150 psig.

Testing

  • All valves are 100 percent factory tested in both operational directions before shipping.