Series NA553

Boiler trim kits (with RPZ backflow preventer)

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Product Description

Boiler trim kits (with RPZ backflow preventer)
This kit includes:

  • (1) Caleffi DISCAL® air separator;
  • (1) Backflow preventer:1/2" NPT, sweat or press union;
  • (1) AutoFill™;
  • (1) Expansion tank check valve;
  • (2) Brass nipples: 3";
  • (1) NPT brass tee;
  • (1) Expansion tank.

6 configurations combining 8 boiler installation components in one box.

Drawings and specifications

Part number Connection Note
3D models
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CALEFFI, NA553362R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" FNPT.
3D models
Tender text
CALEFFI, NA553366R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" PRS, press.
3D models
Tender text
CALEFFI, NA553369R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" PRS, sweat.
3D models
Tender text
CALEFFI, NA553372R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" FNPT.
3D models
Tender text
CALEFFI, NA553376R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" PRS, press.
3D models
Tender text
CALEFFI, NA553379R. Boiler trim kits (with RPZ backflow preventer) This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" PRS, sweat.

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