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RVS Buffertank PWT-500H

Nexus PWT horizontal 500 litre Duplex 2205 buffer tank with hygienic Duplex 2205 inner tank, anti-cycling buffer function, thermal storage function and electric-boiler-ready design with heating element.


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Cost overview
  • € 1.680,92
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RVS Buffertank PWT-500H

RVS Buffertank PWT-500H: Stainless Steel Buffer Tank for Heat Pumps

The RVS Buffertank PWT-500H is a stainless steel buffer tank for heat pump systems, central heating installations and professional HVAC applications. It increases system volume, helps reduce cycling and supports more stable hydraulic operation.

Stainless Steel Construction and Reliable Thermal Storage

The tank is manufactured from Duplex 2205 stainless steel and designed for long-term use in technical installations. The combination of stainless steel, PU insulation and practical connection options makes this model a durable buffer solution for installers.

Hydraulic Stability for Heating Systems

By adding buffer volume, the heating system can operate more smoothly. This supports stable flow, less frequent start-stop operation of the heat source and reliable long-term system performance.

Key Features

  • Manufactured from Duplex 2205 stainless steel
  • High-quality PU insulation to help reduce heat loss
  • Designed for installers, resellers and HVAC professionals
  • Increases system volume and improves hydraulic stability
  • Suitable for heat pump and heating systems

Specifications

Technical data - PWT-500H

General
Product typeDuplex 2205 stainless steel buffer tank / electric boiler-ready vessel
Rated volume500 L
ApplicationHeat pump and heating systems / anti-cycling buffer, thermal storage and optional electric boiler use
Installation typeHorizontal installation
Connection layoutHorizontal side connections
Width [mm]1822
Tilt dimension [mm]1952
Outer diameter [mm]700
Inner diameter [mm]600
InsulationCFC-free rigid PU foam
Insulation thickness [mm]50
Outer casingFrosted metal, light grey
Weight [kg]88
Warranty5 years
Tank
Tank materialStainless steel Duplex 2205
Max. tank pressure [bar]6
Max. tank temperature [deg C]95
Connections
BWidth1822 mm
ØDOuter diameter700 mm
ØdInner diameter600 mm
MDN 14G 3/4"P&T safety valve966 mm
PDN 16G 3/4"Drain tap180 mm
KDN 9G 1 1/4"Hot water outlet510 mm
FDN 3G 1 1/4"Free connection410 mm
EDN 4G 1 1/4"Free connection290 mm
GDN 8G 1 1/4"Cold water inlet190 mm
IDN 6G 1 1/2"Electric heating element350 mm
LDN 5G 1/2"Sensor pocket 1 (12.7 mm)1506 mm
LDN 7G 1/2"Sensor pocket 2 (12.7 mm)1506 mm
Safety requirements
The storage vessel must be protected against overpressure at all times.
We recommend installing the following safety accessories:
* Safety valve and inlet combination
* Nexus sanitary expansion vessel model DS-DSV
* Nexus expansion vessel model Nexus ERCE
The required expansion vessel capacity must be calculated according to the total system volume and operating conditions.