Skip to main content

842 ThermoMix P

  • Flange connection
  • Simple motorisation

LK 842 ThermoMix® P is a 4-way mixing valve for mounting on heating boilers.

LK 842 ThermoMix® P is suitable for motorization.

The valve can be mounted at any angle. LK 842 ThermoMix® P can easily be adapted for right- or left-hand mounting.

The valve requires no maintenance but the installation should be checked regularly.

Technical Data

Angle of rotation: 90°
Torque: < 1 Nm
Leakage: < 1.5% of Kvs at 50 kPa
Max. working pressure: 1.0 MPa (10 bar)
Max. differential pressure: 50 kPa (0,5 bar)
Working temperature: Min. 5 °C/Max. 110 °C (120 °C briefly)
Ambient temperature: Min. 5 °C/Max. 60 °C
Thread standard: G – male thread
Media 1: Water – Glycol mixture max. 50% Ethanol mixture max. 30%
Material, valve body: Brass EN 1982 CB753S
Material, internal cover: PPS Composite
Material, external cover: Aluminium
Material, slide/spindle: Brass EN 12165 CW617N
Material, sealing: EPDM
Spindle sealing: Two O-rings

Application

Documents

Variants

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm G mm H mm J mm K mm L mm M mm Weight (kg) Dimensional sketch Item List
180880 15 mm 5,5 99 62 74 97 31 94 30 67 40 57 24 9 0.8
180881 22 mm 5,5 99 62 74 97 31 94 30 67 40 57 24 9 0.8

Spare parts

Article no. Article Position
013083 Gasket 842 1
187067 Sealing kit 840/841/842, DN 25-32 2
187071 Repair kit 841/842, DN 25-32 3