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Damper Actuator

Control Valve

Accessories

Retrofit

MFT (Product)

What is CV and why is it important for a modulating valve? How do I calculate it?
Cv is the capacity of the valve to deliver flow with an available differential pressure (∆P) across the valve. The Engineer of Record typically specifies Read more...
How do I manually override my actuator?
All EF, AF and NF series spring return actuators, and FSAF and FSAFB fire and smoke actuators, have a detachable manual override crank tool that fits Read more...
What is the difference between a spring return, non-spring return, and electronic fail-safe actuator? What are the advantages and applications for each?
Spring Return actuators utilize an internal spring that drives the actuator open or closed on loss of power. Electronic Fail-safe actuators utilize super Read more...
Do all control valves get piped from the return side of coils?
The standard installation practice to safeguard electric actuator longevity is to reduce exposure to external water and excessive ambient heat.  Read more...
How do I troubleshoot my modulating SY actuator?
See attached guide for basic troubleshooting steps if you are experiencing issues with your SY series MFT actuator.  Contact Belimo Technical Support Read more...
How do I size a damper actuator?
The "10 questions" method for sizing and selection found in the attachment is recommended.  It takes into consideration the total Read more...
I am having problems with my SY actuator. What should I do?
Non -MFT Models: SY products without the MFT on the nomenclature are only used for on/off or floating point applications.  They are only going to use Read more...
What valves can I use for steam applications?
Maximum inlet pressure along with maximum differential pressure and steam temperature are the most important considerations when selecting a valve Read more...
What do the lights on the MFT actuator mean?
MFT actuator series non-spring return and electronic fail-safe include LED's, spring return series MFT actuators are not offered with LED's. Non- Read more...
Can your 3-way valves be used for mixing and diverting?
CCV and HD/HDU/VIC butterfly valves can be piped for mixing or diverting. Globe valves have 2 separate mixing and diverting valve bodies and cannot be Read more...
What is the difference between NTC 10K Type 2 and Type 3 sensors?
At 77ºF, 10K ohms is the signal for both NTC 10K Type 2 and Type 3 sensors, but the values are somewhat different for other temperatures per the Read more...
What is the purpose of the adaptation button on your MFT and some –SR actuators?
Depending on the actuator, adaptation is initiated by one of the following a) Pressing the manual override button twice b) clicking the CW/CCW switch Read more...
What information is needed to select a control valve?
Basic required application information Full flow GPM (or steam lbs/hr capacity)With pressure independent (PI) valves, only the full flow GPM is Read more...
How can I mount a damper actuator on a CCV or small butterfly valve?
Only spring return damper actuators can be field mounted on CCV's, or butterfly valves 3 inch and under, with rotary linkage kits purchased Read more...
What is a characterized control valve (CCV)?
Belimo’s unique Characterized Control Valve™ (CCV) have a special characterizing disc inside the A port of the valve which gives it an equal Read more...
What is the replacement for my NF120 US or AF120 US actuator?
The NF/AF series 120 VAC on-off actuators are functionally replaced with the NFBUP and AFBUP in all damper applications and in valve applications using Read more...
What does Master-Slave wiring mean and when would I use it?
This wiring method is preferred for piggyback applications where actuators are mechanically coupled to a single shaft or linkage. Master-Slave wiring must Read more...
How small can a valve be compared to line size?
The golden rule is never reduce the valve smaller than half the line size.  When a smaller valve than the pipe size is installed, pipe reducers have Read more...
How can I update my PC-TOOL software?
The latest update to PC-TOOL, our MFT programming software, can be found on the MFT webpage. Link to MFT webpage Read more...
For temperature sensors, do you have a resistance (ohms) to temperature table?
See the table below for typical ohms per temperature for NTC and RTD signal types.  Read more...
Are there issues installing stainless steel body valves in a carbon steel piping system?
The Engineer of Record should make decisions regarding valve and pipe material compatibility and the application of dielectric unions.  The Read more...
How do I replace a failed actuator on a CCV?
Today’s CCV’s have actuators with an integrated rotary linkage.  The “R” in the actuator part number (such as AFR or LR) Read more...
Can I mechanically connect or tandem mount more than one actuator on a damper or valve?
YES. This is sometimes referred to as ‘piggy-back’. The preferred method for mechanically linked actuators would be through the use of MFT Read more...
Does Belimo offer NEMA 7/9 Div 1&2 actuators and valve assemblies?
Belimo offers an explosion-proof housing for damper applications only.  For additional information see attached datasheet. The ZS-260 explosion-proof Read more...
I want to reprogram my MFT actuator. What equipment & instructions do I need?
There are two ways off programming an MFT actuator.  You can use the ZTH US handheld device and using one of the provided cables you can connect to Read more...
Can I remove or replace my actuator cable?
Cables are installed at the factory and cannot be changed or reattached in the field.  The standard cable length is 3 feet but most actuator can be Read more...
How do I adjust flow on a PICCV valve with KRB24-3?
The KRB24-3 actuator is available on certain bodies of Pressure Independent Characterized Control Valve (PICCV) assemblies (P2050B010, P2050B025, P2050B055 Read more...
Is ZoneTight QCV & PIQCV available?
Belimo's new pressure dependent QCV zone valve offering is now available.  The pressure independent PIQCV is now available with flow model 0.9 Read more...
What happens to the leaving air temperature (LAT) as coil water flow is reduced with the Energy Valve Delta T Manager?
More information is needed to answer this general question, in particular what sensor is controlling the control valve water flow?  Typically fan Read more...
Can a –SR or MFT modulating actuator be field wired for On/Off or 2-position control?
All of the -SR and -MFT models (when programmed to 2-10 or 0-10 VDC) (with the exception of the SY Series) can be wired for On/Off or 2-position Read more...
What is the difference between fast running and quick running actuators? How can I tell the difference?
The non-spring return actuator product nomenclature includes the letter Q for quick running and C for fast running following the actuator torque letters. Read more...
Should steam valves be piped vertical or horizontal?
Steam valves should always be installed on a horizontal steam line, never vertically.  A control valve in a vertical installation has no ability to Read more...
How do I set up my Cambridgeport or Carrier economizer?
Click here for installation videos and documentation. For technical support questions that may arise regarding the Belimo Zip Read more...
How do I limit damper rotation to less than 90 degrees?
Rotation can be limited in two ways, mechanically or electronically. To limit the stroke mechanically, an angle of rotation limiter will need to be Read more...
What actuator can I use for 135 ohm control?
Belimo offers several actuators with 135 ohm control suitable for Honeywell Series 90 controllers.  The products must have MFT95 in their Read more...
Can I change my spring return damper actuator from fail closed to fail open?
All Belimo spring return actuators can be mounted to fail open or to fail closed upon loss of power based on how the actuator is mounted on the damper Read more...
Do you have flow curves for your CCV valves?
Belimo characterized control valves (CCV) have an equal percentage flow characteristic as shown below.  To obtain a CCV flow curve for a specific Read more...
What weather shield or NEMA 4 enclosure can I use on a large flanged CCV?
Belimo offers a NEMA 4 enclosure option on Large (Flanged) Characterized Characterized Control Valve (LGCCV) assemblies per below table:     Read more...
Can I mount my actuator up-side-down?
Actuator can be mounted in any orientation when mounted onto a damper. When an actuator is mounted on a valve the actuator should not be mounted below Read more...
Can the humidity sensor be used in harsh environments?
When exposed to harsh environmental conditions such as; high ambient temperature and/or high levels of humidity or presence of aggressive gases (i.e. Read more...
Does Belimo offer a three way PICCV or EPIV?
The Belimo pressure independent PICCV and EPIV are available in two way configurations only. A three way valve for coil control is traditionally used in a Read more...
What is the MS/TP device load on Energy Valve
The BACnet MS/TP interface on the Energy Valve will create a 5/8 unit load on the network.  This is a combination of local biasing resistors and a 1/8 Read more...
What is the meaning of the date code?
Currently the date code is printed on the actuator sticker.  Many valves are also date coded using a metal tag or sticker. Current Date Code Format Read more...
Can the TR24-3 US be wired in parallel?
The TR24-3(-T) US cannot be wired in parallel due to the internal actuator circuitry.  The TR24-3(-T) US utilizes two AC Synchronous motors to drive Read more...
Should I use a diode for floating control actuators?
Floating control actuators with ...-3 part number do not need a diode but actuators with ...-MFT part number may need a diode. Most but not all Belimo MFT Read more...
Can the S2A-F auxilary switch be used with non-fire and smoke actuators?
The S2A-F add-on switch is for use only on our fire and smoke actuator models FSAF, FSNF, and new style FSLF with top holes.  They are not intended Read more...
What is the smallest actuator available?
The smallest non-spring (fail in place) damper actuator sold by Belimo is the CMB series actuators.  These actuators provide 18 in-lbs of torque. Read more...
Where can I find more information on your Multi-Function Technology (MFT) actuators?
A webpage dedicated to Multi-Function Technology support includes: technical documentation, operation and wiring instructions, PC-TOOL software and User Read more...
Are Belimo valves and actuators serviceable? How do I obtain replacement parts?
There are no serviceable parts or repacking kits for CCV's or butterfly valves so if they fail they will need to be replaced.  Similarly, Read more...
How do I retrofit a globe valve with a failed NV or NVF actuator?
First, the valve size and manufacturer will be needed to determine the required linkage.  Belimo globe valves less than or equal to 2 inches Read more...
What is the difference between a RTD and a Thermistor?
A RTD (Resistive Temperature Device) is made of metal such as Platinum (PT) or Nickle (Ni).  As temperature increases so does the resistance measured Read more...
How do I parallel wire multiple actuators?
As long as the dampers or valves are not mechanically linked the modulating actuators can be wired in parallel as shown in the attached diagrams.  Read more...
Can your flow meters be used for potable water applications?
Belimo ultrasonic flow meters are not certified to NSF 61 for potable water use. They are designed for HVAC chilled water, hot water, and water/ Read more...
Why does the damper close with loss of power?
Belimo spring return, and electronic fail-safe actuators, are designed to fail open or closed when power is interrupted. Power loss unwinds the Read more...
Where can I get product pricing, documentation, technical datasheets, or installation instructions?
Specific product information and pricing can be accessed via the SHOP button on the www.belimo.us website (link provided below).  This  Read more...
What is Pressure Independent (PI) valve technology?
PI valves are dynamically balanced delivering the proper flow to the coil over any operating load condition. Overflow and underflow are eliminated Read more...
Why is Belimo's CO2 sensor dual-channel technology better than CO2 sensors using ABC logic to compensate for sensor drift?
Dual-channel (also called dual-beam) technology is self-calibrating by using two infrared beams (NDIR). One reference beam is only activated during Read more...
How do I replace obsolete FSAF24-BAL?
The FSAF24-BAL US is replaced by FSAFB24-SR (FSAFB24-SR-S model if auxiliary switches are used) The actuator will be used in conjunction with with the Read more...
Are actuators available with 4-20mA feedback?
Only the modulating SY series actuators are available with 4-20mA feedback.  All other Belimo modulating rotary and linear actuators offer voltage Read more...
How do I foot mount my AF series damper actuator?
A ZG-118 universal mounting bracket or ZG-AFB118 crank arm adapter kit is needed to foot mount a new generation AFB/AFX, NFB/NFX, or FSAFB24-SR damper Read more...
Can I remove or change the disc in my CCV?
The characterizing discs are factory installed and cannot be changed in the field.  If the disc is removed the valve will leak and the warranty will Read more...
Do you sell the actuators you make for OEMs such as Carrier, Trane and York?
Belimo actuators manufactured for an Original Equipment Manufacturer (OEM) may include custom features that are unique to the OEM.  Replacement OEM Read more...
Does the ePIV actuator Direction of Rotation switch work?
On all ePIV actuators the direction of rotation can only be changed using the PC-Tool.  The dial usually associated with switching the “ Read more...
What is the difference between the ZoneTight valve and conventional CCV valve?
ZoneTight QCV and Characterized Zone Valve (CCV) offerings are both high quality 2-way and 3-way pressure dependent valve assemblies designed for HVAC Read more...
Do you make replacement actuators for obsolete Belimo actuators or other brands?
To view replacement actuators for obsolete Belimo actuators or other brands open the Retrofit Module within SelectPro.  Click the Damper or Valve Read more...
Does Belimo make an economizer solution?
Belimo offers the ZIP Economizer™ to provide air-side economizing for Air Handling Units. Until now, economizing solutions have left a lot of room Read more...
What are the recommended fluid velocity limit for butterfly valves? Is there a fluid velocity chart?
HDU/HD Series: It is not recommended to exceed 12 feet per second through resilient seat butterfly valves.  Velocities greater than 12 fps may damage Read more...
Where can I get information on Belimo hand held programming devices?
To view information on Belimo hand-held programming devices found the MFT webpage click here. Read more...
What actuator is recommended for generators which must start in 10 seconds?
Since a generator damper is spring open, the AF actuator with a 20 second full load spring time can be used. A parallel blade damper with a 50% authority Read more...
How do I mount an actuator on a damper shaft?
Click here to watch the YouTube video on how to properly attach an actuator to a damper assembly and apply pre-tension to the assembly. This will provide Read more...
Does Belimo offer changeover valves?
Belimo does offer valve assemblies for changeover applications.  Changeover valves are used for seasonal changeover from heating to cooling in Read more...
How do I rebuild a Belimo globe valve?
If your Belimo flanged globe valve is leaking or isn't performing optimally it might be time to rebuild it. Belimo offers rebuild kits for many Read more...
Does Belimo offer a NEMA 4 parts kit?
Belimo actuators do not come with the option of purchasing a field installed parts kit to convert the standard NEMA 1 or 2 enclosure to a NEMA 4 or 4X Read more...
Do Belimo globe valves have ASME standard certification?
Belimo flanged valves, specifically G6100C, G6125C, G6150C, G665C and G680C, are iron and are in the ASME B16.1 category. Belimo threaded globe Read more...
Is there maintenance for motorized fire & smoke dampers?
There is no maintenance required. No cycling of the actuator is required although dampers should be tested per local codes. Refer to the below schedule of Read more...
How do you determine Energy Valve Cv
Standard pressure dependent control valves are selected for an application with a specified Cv that is used to determine the full flow of the valve at a Read more...
Is there an extension available for CCV or PICCV valves so that actuators can get above insulation?
Belimo CCV extension kits add 2 inches to the actuator height to accommodate pipe insulation.  They also work on PICCV’s.  If the CCV Read more...
Is a weather shield or NEMA 4 actuator design available for Energy Valves?
Several sizes of weather shields are available but at this time a NEMA 4 actuator is not available. For more info specifics on Energy Valve Read more...
Where can I find information on the EFCX actuator?
New On/Off versions of Belimo high torque 270 in-lbs EFCX series spring return damper actuators deliver fast 10 second fail-safe spring return speed for Read more...
Do you sell repacking or rebuild kits for your globe valves?
Repacking kits are available for all Belimo globe valves and rebuild kits are available for flanged globe valves.  Click here for details Read more...
Do you sell replacement UGLK rotary linkages for flanged globe valves?
Belimo does continue to manufacture the rack and pinion style UGLK linkages for 2.5-6 inch two and three-way flanged globe valves.  See attached Read more...
Do you have spring return actuators?
Yes, we have spring return actuators for control dampers and valves.  Belimo spring return actuators are designed for use in a wide variety of HVAC Read more...
How do I install my Belimo UGVL retrofit linkage?
Belimo's adjustable UGVL retrofit linkage fits on most ½" to 2" Globe Valves offering quick and easy installation. Refer to the 2017 Read more...
How do I install my Belimo FGVL retrofit linkage?
Belimo's adjustable FGVL retrofit linkage fits on most 2½” to 6” Globe Valves offering quick and easy installation.  Refer to Read more...
What are the advantages of pressure independent (PI) valves?
Pressure Independent (PI) Valves are designed to deliver the proper flow to the coil over any operating load regardless of system pressure fluctuations Read more...
Do Belimo sensors in the orange box come with a conduit connector?
Yes, all of the orange box sensors come with a ½” NPT conduit adaptor and PG11, M16 or M20 cable gland as standard parts. To reference the Read more...
Does Belimo offer a 120V NEMA4 actuator for use on CCVs?
If a 120V NEMA4 actuator is required, an AFXUP N4 or AFXUP N4H (with heater) spring return actuator can be installed on all Belimo 2 & 3-way Read more...
What weather shield can I use with a globe valve?
Model ZS-SP(GV)... series weather shields are designed as a water tight enclosure to provides moderate protection when mounted outdoors for globe valve Read more...
Can your flow meters be used in waste water treatment applications?
Belimo ultrasonic flow meters are designed for HVAC chilled water, hot water, and water/glycol solutions from -4°F to 250°F [-20°C to 120° Read more...
Why are isolation relays required for 2 position SY actuators wired in parallel?
The reason parallel applications need isolation relays is that the motor uses two sets of windings, one for each direction. When one is energized to turn Read more...
Since the Energy Valve controls the actuator what does the DDC controller do?
The DDC controller's 2-10 VDC output signal is normally the flow setting of the Energy Valve from zero flow (2 VDC) to maximum flow (10 VDC = V' Read more...
How do I wire more than one actuator to the Zip economizer?
The ZIP Economizer installed on a Rooftop Unit (RTU) having more than one damper which is not mechanically linked, can drive a maximum of three Belimo -SR Read more...
How do I adjust the open and close for FSLF actuator?
The FSLF actuator does not have an external stroke limiting capability. The limit of the stroke if <95 degrees would be dependent on the range of the Read more...
What's the default MFT programming code for the PICCV?
The default is code A19, with parameters: 2-10VDC control signal input, 2-10VDC feedback output, and 100 second running time. To view more PICCV Read more...
Would there be imbalance when the damper shaft is smaller than the diameter of the actuator clamp?
Belimo damper actuators are designed for mounting to a range of drive shaft diameters and will be “centered” with a published diameter.  Read more...
Is a balancing valve required when using an energy valve or PIV?
Belimo pressure independent valve (PIV) offerings include electronic pressure independent series (Energy Valve and ePIV) and mechanical pressure Read more...
Can I slow down my SY actuator?
SY actuators whether they are on/off or MFT do not have adjustable runtimes.  The runtimes are a fixed speed based on the actuator model.  Read more...
What does MP stand for in the Energy Valve BACnet Settings; Communication Protocol section of WebView?
Multi Point (MP), or MP-Bus, is an open Belimo Communication Protocol.  Only if the Energy Valve is part of a MP-Bus network is this setting Read more...
How can I buy a D680N+SY1-24-3-T?
This European wafer type butterfly valve assembly is not available in the United States.  To access the actuator datasheet click here,  and for Read more...
Do you make a replacement butterfly valve actuator for other brands?
To view replacement butterfly valve actuators for other brands open the Retrofit Module within SelectPro.  Click the Valve button and select Valve Read more...