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Radiator Trap Capsules
Armstrong radiator trap capsules directly replaces the old thermostat found in many other brands of radiator steam traps. Called the “T-Wafer” by Armstrong, the Hastelloy capsule makes for a long-lasting steam trap thermostat. Simply remove the old thermostat from the radiator steam trap and screw-in or press-in the new T-Wafer steam trap thermostat. Why pipe-in a new steam trap when all you need to do is remove the trap’s cover, take out the old thermostat and insert the new thermostatic radiator trap capsule. Built for years of long-lasting operation and easy to install! Download the appropriate PDF file or call our Customer Help line toll-free: 877-775-7705.
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Armstrong Radiator Trap Capsule for Barnes & Jones 122A
SKU: AO4100
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Barnes & Jones model 122A steam trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Barnes & Jones 134A
SKU: AO4110
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Barnes & Jones model 134A steam trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Dunham-Bush 1E with intergal seat
SKU: AO4120
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Dunham-Bush 1E with intergal seat. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Dunham-Bush 1E with removable seat
SKU: AO4130
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Dunham-Bush 1E with removable seat. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Dunham-Bush 2E with intergal seat
SKU: AO4140
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Dunham-Bush 2E with intergal seat. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Hoffman Specialty 17C
SKU: AO4150
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Hoffman 17C trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Hoffman Specialty 8C
SKU: AO4170
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Hoffman 8C trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Hoffman Specialty No. 8
SKU: AO4160
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Hoffman 8 trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Hoffman Specialty No. 9
SKU: AO4180
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for Hoffman 9 trap. Learn More$47.53 -
Armstrong Radiator Trap Capsule for Illinois 1G
SKU: AO4190
Armstrong "T-Wafer" is a replacement thermostatic capsule & seat adapter for 1G Illinois trap. Learn More$47.53
Free Steam Traps Catalog
View repair parts guides, schematic drawings and product specs in the Steam Trap Maintenance & Repair Guide from State Supply. Click the cover image to get your free copy!
Steam System Optimization
The Steam System Performance Optimization Guide is designed to provide steam system users with a reference that describes the basic steam system components, outlines opportunities for energy and performance improvements, and discusses implementation of these improvement opportunities. Click the cover image to get your free copy!
Shopping Options
- Manufacturer to be Repaired
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- Barnes & Jones (2)
- Dunham-Bush (3)
- Hoffman Specialty (4)
- Illinois (2)
- Marsh (4)
- Monash (2)
- Spirax-Sarco (4)
- Warren Webster (26)
- Manufacturer
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- Armstrong (47)
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