Product Overview

ManualsBrandsCaleffi ManualsHeating Supplies1-1/4" Male NPT ThermoMix Thermostatic Mixing Valve (130°F)

01223/12 GB

Anti-condensation valve

280 series

Function

The anti-condensation valve, used in heating systems with a solid

fuel generator, automatically regulates at the set value the

temperature of the water returning to the generator. Keeping the

generator at a high temperature prevents condensation of the water

vapour contained in the flue gas. It can be used both on boilers and

residential generators such as fireplace heating systems,

thermostoves and thermocookers.

The anti-condensation valve gives the generator a longer life and

ensures greater efficiency.

Product range

280 series Anti-condensation valve sizes DN 20 (3/4”, 1”), DN 25 (1”), DN 32 (1 1/4”)

CALEFFI

Technical specifications

Materials

Body: - DN 20: brass EN 12165 CW617N

- DN 25, DN 32: brass EN 1982 CB753S

Cap: brass EN 12164 CW614N

Obturator: PSU

Spring: stainless steel

Seal: EPDM

Union seals: non-asbestos fibre

Wax thermostatic sensor

Performance

Medium: water, glycol solutions

Max. percentage of glycol: 50%

Max. working pressure: 10 bar

Working temperature range: 5–100°C

Setting temperatures: 45°C, 55°C, 60°C, 70°C

Setting accuracy: ±2°C

By-pass complete closing temperature: Tset +10°C

Connections: 3/4” - 1” - 1 1/4” M (ISO 7/1) with union

ACCREDITED

ISO 9001 No. 0003

ISO 9001 FM 21654

Dimensions

Code Mass (kg)

Setting 45°C

55°C

60°C

70°C

●

45 76

● Code completion

Summary of content (4 pages)

PAGE 1
Anti-condensation valve CALEFFI 280 series 01223/12 GB ACCREDITED ISO 9001 FM 21654 ISO 9001 No. 0003 Function The anti-condensation valve, used in heating systems with a solid fuel generator, automatically regulates at the set value the temperature of the water returning to the generator. Keeping the generator at a high temperature prevents condensation of the water vapour contained in the flue gas.
PAGE 2
Flue gas and emission control Characteristic components Flow by-pass System return Return to generator Wooden biomass and condensation build-up Wooden solid fuel contains a variable moisture percentage depending on the type (logs, pellets, woodchips etc.) and seasoning. Water vapour is released during the solid fuel drying phase inside the combustion chamber.
PAGE 3
Construction details Sizing method / Setting selection Brass body The brass body prevents the formation of ferrous residues in the system, thereby helping to prolong the life of the heat generator. According to the power output and thermal load on the heat generator, the flow rate provided by the generator can be calculated. With this value, it’s possible to use the hydraulic characteristics diagram to obtain the head loss of the valve.
PAGE 4
System with inertial storage Safety devices to choose according to current regulations M M SOLID FUEL GENERATOR Solid fuel generator, connection to inertial water storage in parallel. Safety devices to choose according to current regulations SOLID FUEL GENERATOR SPECIFICATION SUMMARY 280 series Anti-condensation valve. Size DN 20 (from DN 20 to DN 32). Connections 3/4” (from 3/4” to 1 1/4”) M (ISO 7/1) with union. Brass body. Brass cap. PSU obturator. Stainless steel spring. EPDM seal.