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.
