Pressure Reducing Valve – Model 720: The Model 720 Pressure-Reducing Valve is a hydraulically-operated, diaphragm-actuated, control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure.
Pressure Reducing Valve – Model 720-20: The Model 720-20 Pressure-Reducing Valve with Check Feature is a hydraulically-operated, diaphragm-actuated, control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure. The check feature prevents reverse flow through the valve.
Pressure Reducing Valve – Model 720-55: The Model 720-55 Pressure-Reducing Valve with Solenoid Control is a hydraulically-operated, diaphragm actuated, control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure. The valve opens and shuts-off in response to an electric signal.
Pressure Reducing Valve – Model 720-PD: The Model 720-PD Proportional Pressure-Reducing Valve is a hydraulically-operated, diaphragm-actuated, control valve that reduces higher upstream pressure to lower downstream pressure at a fixed ratio.
Pressure Reducing Valve – Model 730-55: The Model 730-55 Pressure-Relief/Sustaining Valve with Solenoid Control is a hydraulically-operated, diaphragm-actuated, control valve that sustains minimum pre-set, upstream (back-) pressure regardless of fluctuating flow or varying downstream pressure. It also either opens or closes in response to an electric signal. When installed as a circulation valve, the Model 730-55 relieves excessive line pressure when above maximum pre-set.
Pressure Sustaining Valve – Model 723: The Model 723 Pressure-Sustaining and -Reducing Valve is a hydraulically-operated, diaphragm-actuated, control valve with two independent functions. It sustains minimum pre-set upstream pressure regardless of fluctuating flow or varying downstream pressure, and it prevents downstream pressure from rising above maximum pre-set regardless of fluctuating flow or excessive upstream pressure.
Pressure Sustaining Valve – Model 736: The Model 736 Differential-Pressure Sustaining Valve is a hydraulically-operated, diaphragm-actuated, control valve that sustains minimum pre-set, differential pressure between two points regardless of fluctuating flow or varying upstream pressure.
Pressure Relief Valve – Model 73Q: The Model 73Q Quick Pressure-Relief Valve is hydraulically-operated, diaphragm-actuated, control valve that relieves excessive system pressure when this pressure rises above the pre-set value. It immediately, accurately, and with high repeatability responds to system pressure rise by fully opening. The Model 73Q provides smooth drip-tight closing.
Flow Control Valve – Model 770-U: The Model 770-U Flow Control Valve is a hydraulically operated, diaphragm-actuated, control valve that maintains pre-set maximum flow, regardless of fluctuating demand or varying system pressure.
Flow Control Valve – Model 770-55-U: The Model 770-55-U Flow Control Valve with Solenoid Control is a hydraulically-operated, diaphragm-actuated, control valve that maintains preset maximum flow, regardless of fluctuating demand or varying system pressure. The valve opens and shuts-off in response to an electric signal.
Level Control Valve – Model 750-66-B: The Model 750-66-B Level Control Valve with Bi-Level Vertical Float is a hydraulically-controlled, diaphragm actuated, double-chambered control valve. The valve is hydraulically powered to fully open at pre-set reservoir low-level, and to shut-off at pre-set high level regardless of valve differential pressure.
Level Control Valve – Model 750-67: The Model 750-67 Level Control Valve with Modulating Vertical Float is a hydraulically-controlled, diaphragm actuated, control valve that controls reservoir filling to maintain constant water level, regardless of fluctuating demand. The modified Model 75A-67, installed at reservoir outlet, sustains minimum reservoir level.
Level Control Valve – Model 750-60: The Model 750-60 Level Control Valve with Modulating Horizontal Float is a hydraulically-controlled, diaphragm actuated, control valve that controls reservoir filling to maintain constant water level, regardless of fluctuating demand.
Level Control Valve – Model 750-65 The Model 750-65 Level Control Valve with Bi-Level Electric Float is a hydraulically-operated, diaphragm actuated, control valve that controls reservoir filling in response to an electric float switch signal, opening at pre-set low-level and shutting-off at pre-set high level. The double-chamber actuated Model 750-65-B is powered to fully open and close even at very low pressure.
Pressure Reducing Valve – Model 753-66: The Model 753-66 Level Control and Pressure-Sustaining Valve with Bi-Level Vertical Float is a hydraulically-operated, diaphragm-actuated, control valve that controls reservoir filling, opening at pre-set reservoir low-level and shutting-off at pre-set high level. During filling, it sustains minimum upstream pressure regardless of fluctuating flow or reservoir level.
Pump Control Valve – Model 740: The Model 740 Booster-Pump Control Valve is a hydraulically-operated, diaphragm-actuated, active check valve that opens fully or shuts off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges.
Pump Control Valve – Model 743: The Model 743 Booster-Pump Control & Pressure-Sustaining Valve is a hydraulically-operated, diaphragm actuated, active check valve that opens or shuts-off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges. While open, it sustains minimum discharge pressure regardless of fluctuating flow.
Pump Control Valve – Model 748: The Model 748 Pump Circulation and Pressure-Sustaining Control Valve adds the advanced “active check valve” logic to standard pump systems. It is a hydraulically-operated, diaphragm-actuated, control valve that in response to electric signals (during the pump starting and stopping processes) opens, while sustaining discharge pressure, or shuts-off. By progressively circulating pump flow, it enables a standard mechanical check valve to respond gradually during the pump starting and stopping processes, preventing pipe-line surges.
Surge Control Valve – Model 735-M: The Model 735-M Surge-Anticipating Valve is an off-line, hydraulically-operated, diaphragm-actuated valve. The valve, sensing line pressure, opens in response to the pressure drop associated with abrupt pump stoppage. The pre-opened valve dissipates the returning high pressure wave, eliminating the surge. The Model 735-M smoothly closes drip-tight as quickly as the relief feature allows, while preventing closing surge.
The valve also relieves excessive system pressure.
Surge Control Valve – Model 735-55-M: The Model 735-55-M Surge-Anticipating Valve with Solenoid Control is an off-line, hydraulically-operated, diaphragm actuated valve. The valve immediately opens in direct response to any power failure even prior to the pressure drop associated with abrupt pump stoppage. The pre-opened valve dissipates the returning high pressure wave, eliminating the surge. The Model 735-55-M, sensing line pressure, smoothly closes drip-tight as quickly as the relief feature allows, while preventing closing surge. The valve also relieves excessive system pressure.
Solenoid Control Valve – Model 710: The Model 710 Solenoid-Controlled Valve is a hydraulically-operated, diaphragm-actuated, control valve that either opens fully or shuts-off in response to electric signals. For very low-pressure applications, refer to the Full-powered Opening & Closing Model 710-B.
< B>Solenoid Control Valve – Model 710-B: The Model 710-B Powered-Opening Solenoid-Controlled Valve is a double-chambered, hydraulically operated, diaphragm-actuated, control valve that either opens fully, regardless of valve differential pressure, or shuts-off in response to electric signals.
B>Electronic-Control Valve – Model 718-03: The Model 718-03 Electronic-Control Valve combines the advantages of an excellent modulating, line-pressure driven, hydraulic control valve with the advantages of electronic control. This valve responds to signals from the electronic controller BERMAD BE (optional) according to the set values programmed into the controller. For very low pressure applications, refer to the full-powered opening & closing – 718-03-B
Burst Control Valve – Model 790-M: The Model 790-M Burst Control Valve is a hydraulically operated, diaphragm-actuated, control valve that upon sensing flow in excess of setting shuts-off and locks drip-tight, until it is manually reset. As long as flow is lower than the setting, the valve remains fully open, minimizing head-loss.
Hydrometer – Model 900: The 900 Series Hydrometer is based on a patented innovation that combines a water meter control-head and a hydraulic control valve into a single unit. This innovative solution has proven that it enhances labor and installation cost reductions and efficiency in a variety of irrigation applications.
Hartman Sleeve Valve: Hartman Sleeve Valves achieve superior control while dissipating pressure energy by accelerating fluid through radial nozzles arranged in a properitary pattern. This advanced design causes the fluid to collide in a turbulent zone along the centerline of the valve surrounded by lower velocity fluid, minimizing erosion and noise.
Model 117 Fixed Cone Valve The Hartman Model 117 Fixed Cone Valve is a free-dischage valve commonly used as a turbine bypass valve, reservoir drain, or continuous discharge flow control valve. The Hartman Fixed Cone Valve operates cavitation and vibration free through its entire operating range, and has excellent flow control even during 10% of stroke.
Advanced V-Control Ball Valve 1/4" - 12": Flow-Tek’s characterized balls provide predictable and accurate control of downstream flow rates. These precision cut balls match the control performance of globe valves while offering the economy, features and reduced size and weight of ball valves. A wide range of V-Port and Slotted Port characterized balls are standard. The Flow-Tek Automator Pneumatic Control Actuator is equipped with advanced pneumatic or electro-pneumatic positioners for precise valve positioning. Flow-Tek Automator electric actuators can be equipped with digital servo boards that respond to an analog command signal or servo boards that are microprocessor controlled that communicate on serial bus networks. In combination with Flow-Tek’s V-control balls, the Automator pneumatic and electric actuators offer superior flow control. Flow-Tek also offers a variety of microprocessor controlled positioners and interfaces that digitally communicate over different serial bus networks. Protocols offered include DevideNet, Foundation Fieldbus, Profibus PA, FoxCom and HART.
