LWW-PROFI: Test rig for joint permeability, water tightness and wind loads


ift Messtec

+49 8031 261-2550
+49 8031 261-290


Product Datasheet

General product description

Test rig and accessories to the determination of joint permeability, water tightness and wind load behavior at windows, doors and facades. Sealings, panels and other outside wall components can be checked for the above characteristics as well.

As standard, measuring units and care units with a volume flow of 100 m³/h, 450 m³/h or 800 m³/h are available.The volume flow is already converted in norm conditions. The testing pressure can be regulated up to 5000 Pa or 15000 Pa.

The hydraulic pressure and flow rate can be set by hand or electrically and recorded by a measuring turbine.

All measuring values are collected and visualized via an integrated computer. The clamping substructures are equipped in different dimensions with an electrically adjustable crossbar, variable side frames from stainless steel and one of the ift developed quick acting systems.


On request the following options can be offered:

  • Variant of supply unit
    • Typ: MSR PROFI 5000 – 800/3000 (Air volume flow rate 800 m³/h | 5000 m³/h)
    • Typ: MSR PROFI 5000 – 800/3000-U (Air volume flow rate 800 m³/h | 5000 m³/h)
  • WPK test wall variants
    • Type: ASW-PROFI 4038-4 oder 4038-6: Clampig square: 4,000 x 3,800 x 400 (600) in mm (WxHxD)
    • Type: ASW-PROFI 5050-4 oder 5050-6: Clampig square: 5,000 x 5,000 x 400 (600) in mm (WxHxD)
    • Type: ASW-PROFI 8038-4 oder 8038-6: Clampig square: 8,000 x 3,800 x 400 (600) in mm (WxHxD)
    • Further sizes are available on request
  • Additional deformation transducer with 5 m connection cable (max. 3 more additional transducer possible)
  • Displacement transducer fixing carriage (for vertical and 1,8m horizontal fixing of displacement transducer)
  • Extended pressure measuring range: max. test pressure: ± 15,000 Pa
  • Water circulation ca. 30 l/min (incl. water pump, collecting container and control unit)
  • Spray tube for width of 4,000 mm (incl. nozzles 1 l/min; hose with t-fitting)
  • Wind generator for dynamic wind loads according to DIN EN 13050 standard (all reqired components are included)
  • Calibration window-/ facades test rig: each 3 series of measurement via chamber air pressure and air flow rate of positive and negative pressure; each 3 series of measurement via transducer 1 to 3; each 3 points of measurement for water flow sensor 1 and 2
  • Climate control unit -40 °C to +60 °C (applicable into the test chamber))
  • Fogging device with external manual control and piping
  • Access hatch: 500 x 800 in mm (only available for test walls with 600 mm depth)
  • Ceilings simulation
  • Multifunction meter device for environmental conditions (air pressure/humidity/temperature)
  • Remote control by ift

Note: Individual features, especially for your needs, can be provided after consulting.


LWW-PROFI joint permeability/water tightness/wind loads test according to the following standards:

Testing characteristic Testing standard
Air permeability EN 1026
Water tightness EN 1027
Wind load EN 12211
Windows and outside doors EN 14351-1
Curtain wall Air permeability DIN EN 12153
Curtain wall Water tightness DIN EN 12155
Curtain wall Resistance to wind load DIN EN 12179

Technical details


  • Max. air volume flow: approx. 800 m³/h
  • Max. test pressure: approx. ±5,000 Pa
  • Water flow rate: 2 x 50 l/min
  • Spray nozzle: 1 l/min and 2 l/min
  • Three deformation transducers: 0...50 mm
  • Integrated PC and TFT-display
  • Required supply
    • Safety socket: CEE 32 A, 230/400 V (without RCD)
    • Compressed air: 1"; 6 bar
    • Water inlet: 3/4"; min. 3.5 bar
    • Water outlet: min. DN 50 mm

Scope of delivery

Basic version

  • Supply unit
    • Type: MSR ECO 2500 - 150/350 (Air volume flow rate 150 m³/h | 450 m³/h) control and measuring unit incl. PC with software and TFT-display installed in a moveable high desk
  • WPK test wall ASW-PROFI 3030-4
    • Clamping square: 3,000 x 3,000 x 400 in mm (WxHxD) Incl. gripping jaws, clamping elements, distance and raster elements, electric operated lifting device for transverse beams, air and water piping for the supply device as well as a divisible spray bar with nozzles