Bell & Gossett V1000840 Ultra Setter Large Pressure Independent Control Valves - Manual (Page 8)

Product Description
General description
The Ultra Setter is a pressure independent combination temperature control, balance,
and commissioning valve for use in hydronic HVAC systems.
WARNING:
California Proposition 65 warning! This product contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm.
NOTICE:
This product is not intended for potable water applications.
The innovative design of the Bell & Gossett Ultra Setter TM introduces a modulating control
component that retains 100% authority at all times. With the Ultra Setter TM , there are two
independent movements for the presetting and the modulating function. During
presetting, that is selecting the desired flow rate, the inlet area moves radially without
interfering with the length of the stroke. During modulating, the inlet area moves linearly
taking advantage of the full stroke.
While the actuator provides proportional modulation irrespective of the preset flow, the
automatic balancing cartridge guarantees that the flow never exceeds the maximum
preset flow. Regardless of pressure fluctuations in the system, the maximum flow rate is
kept constant once the minimum differential pressure listed in the product submittal is
met, up to 90 PSI (600 kPa).
The flow rate of the valve can be set according to the convenient GPM flow rate scale next
to the valve stem.
Select the appropriate size Ultra Setter
TM pressure independent balancing control valve,
normally line size, for the required flow rate. Ideally, Ultra Setter TM valves should be
selected such that they operate at about 80% of their maximum flow, enabling them to
deliver spare capacity, if required.
The scale is for the adjustment of flow. If you want to close the branch line, use an isolation
valve in conjunction with the Ultra Setter
TM valve.
Ultra Setter features
• Internal automatic balancing cartridge
• External control actuator (provided separately)
• 1/4” NPT readout ports
• 125# or 250# ANSI flanged connections
• Flow rate scale in GPM
Actuator
Model Actuator
Ultra Setter Analog Control Signal
(0-10V or 4-20mA)
3–Position Tri-State
Control Signal
Spring Return
Normally Open
Spring Return
Normally Closed
Product Description
6 Ultra Setter ™ Pressure Independent Control Valves Installation, Operation and Service Manual