Logo
  • LK Group
  • Contact us
  • English
    • English
    • Deutsch
    • Svenska
    • YouTube
    • LinkedIn
    • Facebook
    • Instagram
  • Products(current)
  • Support
  • News
  • About us
  • Products
    • Ball Valves
    • Capillary fittings - Copper
    • Capillary fittings - Red Brass
    • Check Valves
    • Compression fittings and support sleeves
    • Differential Temperature Controllers
    • Expansion Vessels and Safety Groups
    • Filling Valves
    • Flexible hoses
    • Flowswitch
    • Gaskets
    • Hose clamps
    • Loading Units
    • Manometers & Thermometers
    • Mixing Valves
    • Other Products
    • Prefab
    • Pressure Reducing Valves
    • Products for Underfloor Heating
    • Pump Groups
    • Pump Valves & Pump Fittings
    • Safety Valves
    • Solar Pump Units
    • Strainers
    • Temperature Controllers
    • Thermic Valves & Check Valves
    • Threaded fittings - Brass
    • Threaded fittings - Red Brass
    • Valve Actuators
    • Valves for Water Heating
    • Zone Valves
  • Support
    • 840/841 2.0
    • FAQ
      • Products
        • What is the running time of a SmartComfort
        • Can you use LK's safety valves with steam?
        • Do all LK 810 ThermoMat spare parts fit the entire range?
        • Is it possible to replace a Honeywell mixing valve with an LK 525 MultiZone with actuator?
        • Can I purchase spare parts for an Acaso 3-way valve in cast iron?
        • I have an RP 12-litre expansion vessel with the port on the long side but I can’t find this product on your website.
        • Why can’t I find the right spare part (sensor body) for my loading unit?
        • SmartComfort shunt exercise
        • I have an LK 550 where I replaced the insert. Now I can´t get out enough heat from it, can I do something about it?
        • How do I clean the filter on a LK 520 MultiFill?
        • What should I do if I have misplaced the air vent to my LK 550 AquaMix?
        • The warm water from my tap is not the correct temperature: what should I do?
        • Why is my safety valve leaking?
        • My mixing valve rotates in different directions: is there something wrong?
        • Unfortunately, I threw away the insulation for my LK 521 MultiFill: can I buy this as a spare part?
        • Can I replace my water meter console with a new version without adaption?
        • Which expansion vessel should I buy?
        • My LK SmartComfort says that the outdoor temperature sensor is missing but, as far as I know, my product doesn’t need one?
        • Is the LK SmartComfort compatible with a mixing valve from another manufacturer?
        • I want to replace my 12 litre expansion vessel: which should I choose?
        • Is it possible to upgrade LK110 to LK130 by purchasing and adding the indoor temperature controller? Or would I need to purchase the whole LK130 set?
      • Customer service
        • How much does this article cost?
        • Do you have this article in stock?
        • What is the difference between sanitary water and heating water?
        • What is the Kvs value?
        • What does HVAC stand for?
        • Where can I find technical documentation for a product?
        • If I misplace my instrument manual, how can I get hold of a new one?
        • How do I contact customer services?
        • Do you sell directly to consumers?
        • Do you sell directly to installers?
        • Do you have an order question
      • Marketing - Press
        • Where can I download your logotype?
        • What should I do when I need a product photo?
  • News
    • Fairs
      • MCE, 8-11 March 2022
    • Campaign site
  • About us
    • Community engagement
    • Opening hours
  • LK Group
  • Contact us
  1. Back
  2. Products
  3. Other Products
  4. Share
LK 435 OptiFlow Product image (LKA)
435 OptiFlow Download image

LK 435 OptiFlow

Technical data
Technical data
  • Working temperature: Water/Glycol 50/50% Min. -20 °C / Max. 80 °C (90 °C briefly)
    Water/Ethanol 70/30% Min. -20 °C / Max. 70 °C (85 °C briefly)
  • Max. working pressure: 1.0 MPa (10 bar)
  • Max. differential pressure: 100 kPa (1,0 bar)
  • Media 1: Water - Glycol mixture max. 50% Ethanol mixture max. 30%
  • Material, valve body: Nickel-plated Brass EN 12165 CW617N
  • Other data: Flow ranges: 2-16 l/min, 4-36 l/min
    Accuracy, flow meter: +/- 12%
    Thread standard, adjustment valve inlet:
    M - male thread
    Thread standard, adjustment valve outlet:
    F - female thread
LK 435 OptiFlow is a group valve for flow adjustment of ­hydraulic systems such as underfloor heating, traditional ­heating and cooling systems. Adjustments are easily made using an Allen key. No measuring equipment is needed. The flow rate is read off directly from the visual flow indicator. The flow meter continuously measures and displays the actual flow rate during operation.

LK 435 OptiFlow has a MemoStop function for locking the ­setting. This means that the valve can be used as a shut-off ­valve without losing settings. A marking plate for labelling and ­documenting the setting is enclosed. LK 435 OptiFlow can be supplemented with a thermometer and threaded union parts, straight or angular, with rotating nut for simple ­assembly to, for example, an LK 430 Manifold RF - see under Accessories. The thermometer is placed in the valve’s integrated sensor pocket.
Read more
The valve can be mounted in any position. The arrow on the valve body indicates the flow direction. For accurate ­measurement a straight piece of tube at least of the same length as the valve body should precede the balancing valve. When assembling to an LK 430 Manifold RF the adjustment valve can be fitted directly to the manifold, thus replacing the shut-off valve.
The flow meter is designed so that the fluid does not flow ­through the glass in order to protect it from debris and dirt. ­However, after a period of time the glass may still have to be cleaned as the fluid often becomes contaminated and ­blackened. It is then easy to remove the glass to clean it. The function/setting of the valve is not affected by deposits in the glass.

Except for cleaning of the glass, the group valve normally requires no maintenance. The installation should be checked regularly.
Read less
Datasheet Variants
  • Articles
  • Application
  • Technical diagrams
  • Accessories & spare parts

LK 435 - Male thread / Female thread

LK 435 - Male thread / Female thread Product image (LKA)
LK 435 - Male thread / Female thread Measurement drawing (LKA)
LK 435 - Male thread / Female thread Product image (LKA)
LK 435 - Male thread / Female thread Measurement drawing (LKA)
 
Article no. Dim. Kvs m³/h Flow range Weight (kg) Save in my item list
090275 Adjustment valve - M 1" / F 1" 3.52-16 l/min0.5
090276 Adjustment valve - M 1” / F 1”4.54-36 l/min 0.5
  • LK 435 OptiFlow Application image With LK 430 Manifold RF Download image
    LK 435 OptiFlow Application image With LK 430 Manifold RF
    With LK 430 Manifold RF
  • LK 435 OptiFlow Technical diagram Valve Characteristics Download image
    LK 435 OptiFlow Technical diagram Valve Characteristics
    Valve Characteristics
LK 435 OptiFlow Dissection image Spare parts and Accessories Download image
LK 435 OptiFlow Dissection image Spare parts and Accessories
LK 435 OptiFlow Dissection image Spare parts and Accessories Download image
LK 435 OptiFlow Dissection image Spare parts and Accessories
 
Article no. Article Position
095222Threaded union part straight M 1” with rotating nut1
095223Threaded union part angle M 1” with rotating nut 2
095018Thermometer T40, 0 - 80 °C3

Variants

LK 435 - Male thread / Female thread Product image (LKA)

LK 435 - Male thread / Female thread

Navigation
  • Products
  • Support
  • News
  • About us
  • Opening hours
Support
  • Contact us
  • Movies
  • Catalogues & Brochures
  • Tools
  • Career
  • FAQ
Follow us
  • Newsletter
  • Media center
  • LinkedIn
  • YouTube
  • Facebook
  • Instagram
LK Armatur AB

Garnisonsgatan 49
254 66 Helsingborg 
Sverige

Tel. 042-16 92 00
Fax. 042-16 92 20

info@lkarmatur.se
order@lkarmatur.se

VAT no: 556249-9508

Cookies

©Lagerstedt & Krantz AB

Our website uses cookies

We use cookies to ensure that we give you the best user experience on our website. By using our website you accept our use of cookies.

Find out more about cookies