Flow Control Dampers
HFB – AIRFLOW MANAGEMENT DAMPER
The pressure-independent variable airflow control damper shall be made of galvanised steel, with an airflow measurement probe of aluminium.
The tightness of the control damper in closed position shall conform to standard EN1751 class 4 and casing tightness to EN 1751/C.
Duct connection shall include integral airtight rubber gaskets.
The management damper section shall contain airflow measurement, flow controller and damper actuator.
Design airflow range limits shall be calibrated at the factory.
Controller settings shall be adjustable on site with a PC or a handheld tool.The airflow controller shall have control signal input 0…10 VDC or 2 …10 VDC and output 0…10 VDC for airflow feedback.
Supply power shall be 24 VAC. The damper shall be equipped with a sound attenuator in order to meet the sound level requirement for the room.
As an optional extra, the sound attenuator shall have an access panel for cleaning purposes.
The airflow controller shall comprise an electric reheat coil with power supply of 230 VAC. Incorporated within the reheat coil shall be a safety overheat thermostat with both automatic and manual reset.
A 3rd party room controller is needed to control the duct heater with 0…10 VDC control signal.
• Control damper for different airflow and duct pressure control applications
• Pressure-independent operation
• Galvanized steel design
• Circular duct connection equipped with integrated rubber gaskets
• Minimum airflow is related to 1 m/s on specific product models
• Model with shut-off operation; tightness fulfills EN 1751, class 4 requirements (HFB/G and HFB/I)
• Casing tightness fulfills EN 1751, class C requirements
• Model with external insulation
• Several sound attenuator models
• Several airflow controller options
• 1 m/s – minimum airflow – the HFB/G and HFB/I with one of following controller options of EM, EK, EC, EE
• 2 m/s – minimum airflow – any HFB models with controller option of EM, EK, EC, EE, ED, EG
• Electric reheat coil options
• Factory-set airflow range limits (min./max. airflow rates) as an option
HML – AIRFLOW UNİT FOR LARGE VOLUMES
HML is an airflow unit for large air volumes with centralized airflow heating.
The unit can be controlled with one control panel.
HML VAV/CAV unit offers several regulation options from independent operation system to network applications.
This pressure independent product can be equipped with reheater(s) from 900 W up to 30 KW.
• Pressure range from 100 Pa…1000 Pa
• Minimum air velocity 2.1 m/s
• 230 VAC, 1Ph or 400 VAC, 3 Ph
• Inbuilt airflow measurement (automatic models)
• Damper min. / max. position settings (semi-automatic)
• Triac controlled reheating coil(s), adjustable heating power (PWM) 0…100%
• Master/slave functionality: several slave units can be connected to one master unit
• Internal fuses • Inputs for external switches such as balcony door and key card switches available as an option
• Network compatible with adapter for advanced energy efficiency and supervision system
• Energy efficiency functions to reduce unnecessary cooling / heating costs available as an option
• All parameters can be preset at the factory or set onsite during commissioning by PDA
• All cable connections with cable glands
• Easily tailored for different types of installations
• 90 °C manual reset safety switch with state detection indication to control panel
• Minimum flow alarm (automatic model) and inbox temperature measurement with overheat limit to cut-off reheater power
• HML airflow unit is supplied with control panel and interconnection cable
PRA – ADJUSTMENT AND MEASUREMENT UNIT
The adjustment damper shall comprise an adjustable cone and airflow measurement taps for differential pressure measurement.
The casing and adjustment cone vanes shall be made of galvanised steel.
The airflow determination shall be based on the differential pressure measurement caused by airflow over the damper cone.
The adjustment damper shall have an adjustment position indicator and adjustment position marker to be used during cleaning.
• Airflow balancing, adjustment and measurement functions
• Manual adjustment, no tools required
• Accurate airflow measurement based on flow nozzle principle
• Minimized sound generation due to conical adjustment section
• Temperature operation range from -30 °C to +70 °C
• Self-locking adjustment mechanism, position can be ensured with locking screw
• Duct cleaning enabled through the unit up to size 315 mm
• Adjustment position marker indicates proper position e.g. repositioning after cleaning
• Inlet and outlet spigots equipped with integral rubber gaskets
• Used also as supply air jet nozzle for air diffusion in large spaces
• Classification of casing leakage EN 1751 class C
• PRA unit integrated with cleaning access panel
UTG – SHUT-OFF, BALANCING AND GAS DAMPER
UTG dampers are used to shut-off and balance airflow rates in high pressure ductwork.
Dampers meet international standards for rectangular and round ducts.
In the open position, the blades face the direction of flow and do not cause a significant pressure loss.
The UTG is used as a shut-off, gas and balancing damper in applications where tightness and reliability are important.
• For shut-off and balancing of air intake and exhaust
• ATEX approved. Shock tested.
• Closed damper fullfils the requirement of leakageclass 3 (EN 1751:1998). Tested size 1000×1000 mm.
• Outer frame of galvanized, painted or stainless steel. Blades of galvanized or stainless steel with double sheet construction, silicon sealings. Maintenance-free stainless steel bearings and shafts.
• Electrical, pneumatical or manual operation system available
• UTG dampers can be supplied with connection pieces for round duct
• Maximum duct pressure for damper construction 5000 Pa and maximum air velocity 15 m/s. In case of high duct pressure, contact Halton Marine for finding the most suitable solution
UTK – MULTI-BLADE DAMPER
The casing and blades shall be made from galvanised steel (or stainless steel AISI 316).
The blade gaskets shall be of silicon (or EPDM- rubber).
The drive shaft socket shall be of galvanised steel with self-lubricating slide bearings.
The bearing shall be made from an alloy of polyamide and molybdenum sulphide (or stainless steel AISI 316 or stainless steel AISI 304 or bronze).
The damper shall be installed into rectangular ductwork in compliance with EN 1751, or in circular ducts D=100 … 1250 mm in accordance with EN 1751.
The damper shall meet the tightness requirements of EN 1751 class 1.
The casing of the damper shall meet the tightness requirements of EN 1751 class B.
The damper shall be suitable for either manual adjustment or actuator operation.
• Shut-off, adjustment, balancing, adjustment or control damper with opposed blade construction
• Tightness in closed position fulfills EN 1751 class 1 requirements
• Temperature operation range up to +100°C, optionally up to +200°C
• Galvanized steel design
• Classification of casing leakage EN 1751 class B
• Model with Acid-proof /stainless steel (AISI 316) design
• Model with insulated casing
• Model with heat-proof design
• Circular duct connections
• Several actuator options
UTP – BALANCING DAMPER
UTP dampers are used to balance airflow rates in high pressure ductwork.
Dampers meet international standards for rectangular and round ducts.
In the open position, the blades face the direction of flow and do not cause a significant pressure loss.
The UTP is used as a balancing damper in applications where reliability is important.
• For balancing of air intake and exhaust
• Available as ATEX approved. Shock tested.
• Leakage class of a closed damper according to EN1751 class 1. Tested size 1000×1000 mm.
• Outer frame of galvanized, painted or stainless steel. Blades of galvanized or stainless steel with double sheet construction. Maintenance-free stainless steel bearings and shafts.
• Electrical, pneumatic or manual operation system available
• UTP dampers can be supplied with connection pieces for round duct
• Maximum duct pressure for damper construction 5000 Pa and maximum air velocity 15 m/s. In case of high duct pressure, contact Marine for finding the most suitable solution.
UTT – TIGHT MULTI-BLADE DAMPER
The casing and blades shall be made from galvanised steel or stainless steel AISI 316).
The blade gaskets shall be of silicon (or EPDM- rubber).
The drive shaft socket shall be of galvanised steel with self-lubricating slide bearings.
The bearing shall be made from an alloy of polyamide and molybdenum sulphide (or stainless steel AISI 316 or stainless steel AISI 304 or bronze).
The damper shall be installed into rectangular ducts in compliance with EN 1751, or in circular ducts D=100 …1250mm in accordance with EN 1751.
The damper shall meet the tightness requirements of EN 1751 class 4.
The casing of the damper shall meet the tightness requirements of EN 1751 class B. Heat transmission of the damper shall not exceed 6 W/(m2K).
The damper shall be suitable for either manual adjustment or actuator operation.
• Shut-off and balancing damper for outdoor air intake and exhaust air with opposed blade design
• Damper blades comprise thermal insulation
• Tightness in closed position fulfills EN 1751 class 4 requirements
• Temperature operation range up to +100°C, optionally up to +200°C
• Galvanized steel design
• Classification of casing leakage EN 1751 class B
• Model with stainless steel /acid-proof steel (AISI 316) design. • Model with insulated casing
• Model with heat-proof design
• Circular duct connections
• Several actuator options
UTP – BALANCING DAMPER
UTP dampers are used to balance airflow rates in high pressure ductwork.
Dampers meet international standards for rectangular and round ducts.
In the open position, the blades face the direction of flow and do not cause a significant pressure loss.
The UTP is used as a balancing damper in applications where reliability is important.
• For balancing of air intake and exhaust
• Available as ATEX approved. Shock tested.
• Leakage class of a closed damper according to EN1751 class 1. Tested size 1000×1000 mm.
• Outer frame of galvanized, painted or stainless steel. Blades of galvanized or stainless steel with double sheet construction. Maintenance-free stainless steel bearings and shafts.
• Electrical, pneumatic or manual operation system available
• UTP dampers can be supplied with connection pieces for round duct
• Maximum duct pressure for damper construction 5000 Pa and maximum air velocity 15 m/s. In case of high duct pressure, contact Marine for finding the most suitable solution.