Valves & Actuation
![Asahi/America Ball Check Valves: Automatic - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/92ebda45e6d6fd3e0b9054b4784e/Asahi%20Ball%20Check%20Photo_2.jpg?itok=MPOzzeb7)
![Asahi/America Duo-Bloc Type 21: Manually Actuated - PVC \ EPDM Breadcrumb Home Asahi/America Duo-Bloc Type 21: Manually Actuated - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/1d2fd29c6921d1d725c55c55563e/1601005.jpg?itok=T5khWRa7)
Asahi/America Duo-Bloc® Type 21 thermoplastic ball valves provide a dependable and economical way to handle corrosive chemicals. They perform at temperatures up to 250°F, and pressures to 230 psi (150 psi for polypropylene valves). True Union Duo-Bloc® Type 21 Ball Valves can be lifted from the line, simply by loosening the two union nuts. The valve can be disassembled, and parts may be replaced. The Duo-Bloc® feature blocks in two directions, leaving full pressure opposite, and allowing disconnection of downstream piping.
![Asahi/America Duo-Bloc Type 21: Series 79 Pneumatic (Air to Air) Actuated - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/1d2fd29c6921d1d725c55c55563e/Asahi_79_Series_Ball_Vlv_PVC.jpg?itok=S-W9D-IK)
Asahi/America Duo-Bloc® Type 21 thermoplastic ball valve packaged with Series 79 Air to Air Pneumatic Actuator. Features include: Glass-filled polyamide housing for a high degree of corrosion resistance. Position indication through visible indicator knob. Double rack and pinion design.
![Asahi/America Duo-Bloc Type 21: Series 79S Pneumatic (Air to Spring) Actuated - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/1d2fd29c6921d1d725c55c55563e/Asahi_79_Series_Ball_Vlv_PVC_1.jpg?itok=GA8EpCWd)
Asahi/America Duo-Bloc® Type 21 thermoplastic ball valve packaged with Series 79 Air to Spring (Fail Return) Pneumatic Actuator. Features include: Glass-filled polyamide housing for a high degree of corrosion resistance. Position indication through visible indicator knob. Double rack and pinion design. Units can be configured to fail-closed or fail-open.
![Asahi/America Duo-Bloc Type 21: Series 92 Electrically Actuated - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/1d2fd29c6921d1d725c55c55563e/92-160_1.jpg?itok=FkxQH9b6)
Asahi/America Duo-Bloc® Type 21 thermoplastic ball valve packaged with Series 92 Electric Actuator. Features include: 120 VAC, Open/Close - 5 second cycle time, NEMA 4X epoxy powder coated aluminum housing with stainless steel trim. Auxiliary limit switches available, manual override standard - mounted and tested.Torque range 400 to 700 in-lbs. Duty cycle - 1/2" thru 2" (100%) 2-1/2" thru 3" (75%)