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HYCOA 3-Way Diversion Valves

  • Special Interflow Operation
  • Maximum Design Flexibility
  • Lower Overall Piping Costs
  • Wide Range of Sizes
  • Also Available in a 2-Way Design
  • See Dimensions
 
Features:

HYCOA Series 300 Low-Pressure Diversion Valves are designed and fabricated to provide optimum flow sequencing control in a wide variety of installations involving working pressures up to 300 psi (max). These rugged, high performance valves feature a special interflow design that allows simultaneous flow to both the discharge ports while the piston is in changing position. As a result. since there is no "blind" areas during piston change, high flow volumes can be diverted effortlessly without putting any shock loads oil either the piping or other components in the system. HYCOA diversion valves not only simplify control piping but also provide simultaneous operation without constant adjustments of pressure, volume or the stroke valve operators.

NO EXTERNAL ACTUATORS The 1-piece bode of the Series 300 valve includes an integral actuator that eliminates the problems of stem leakage, misalignment, and mechanical linkage failure associated with external actuators.

SIMPLIFIED MAINTENANCE Single-end coupling design permits quick removal of the valve's wear­resistant, balanced piston for servicing. Valve design also eliminates internal body packings, and permits both the cylinder seal and the Nylon main fluid seal to be replaced without removing the valve body from the line.

REDUCED PIPING COSTS HYCOA diversion valves help reduce long-term operating expenses. A single Series 300 unit can replace two on-off valves, thereby cutting initial as well as installation and maintenance costs. In addition, when different port Sizes are needed, this variation call be accomplished economically during fabrication. shockfree operation also minimizes system stress loads and the resulting maintenance requirements.

WIDE RANGE OF SIZES HYCOA 3-way diversion valves are available in two styles: Series 300-F (Full-Flow) and Series 300­V (Venturi). Full-Flow models are available in standard sizes ranging from 2-20 inches; Venturi models are supplied in comparable sizes.

 
NOTE: Nonstandard sizes also can be supplied on special order.
 
Applications: Hycoa Diversion Valves serve a broad spectrum of fluid flow control applications, ranging from the primary metals market, to automotive, municipal water service, sewage disposal and water purification. Typically one HYCOA Series 300 valve can replace two on-off valves or other less versatile valve designs.
 
Automotive

Two to Six inch valves for control­ling flow of coolant in machine tool applications. Typically coolant is diverted from the machine during "non-machining" portion of cycle to either the flume or to flush other areas of the machine. By replacing two traditional on-off valves. the HYCOA valve enables the Automotive coolant system to:

  • Conserve Coolant
  • Use smaller coolant pumps
  • Eliminate "misting" and "splashing"
  • Eliminate water hammer
  • Moderate system shock
 
SCARF QUENCHING:
Only one Series 300 valve is required for both high-volume quenching and scale removal on scarfing machines. By replacing (2) on-off valves the HYCOA diversion valve reduces installation and maintenance costs
 
ROLL COOLANT SPRAY
Hycoa 3-way diversion valves are widely used for roll coolant solution systems. For this application, they usually are fabricated with one smaller size discharge port. This asymmetrical discharge configuration imposes a simulated back pressure approximately equal to that of the roll nozzles when the coolant flow to the spray is diverted. As a result. there is minimal effect on the flow rates or pressures for other roll stands.
 
FILTER BYPASS
A Series 300 valve can provide full flow to a filter, and can be set to automatically divert the flow to a bypass line at a specified pressure differential. The bypass flow can be used to "back flush" the filter or to provide relief for the system until the pressure differential is corrected.
 
STANDBY DIVERSION
A single HYCOA Series 300 valve, either manually or automatically operated, can be used to assure fast, efficient changeover on pumps, filters and hydraulic systems.
 
RUNOUT TABLE SPRAYS
When used as a spray control valve on runout tables, the Series 300 diversion valve eliminates line shock, gives rapid, positive closure and provides pump relief as it operates. A restricted discharge port, when properly sized as an orifice, will provide proportional recirculation to the pump.
 
COKE QUENCHING
HYCOA 3-way diversion valves efficiently handle the high volume of water needed for coke quenching. When the quenching is completed, a small discharge port automatically recirculates the water, assuring positive protection for the pumps.
 
TUBE QUENCHING
Series 300 valves are ideal for supplying fast response and high volume low pressure flow required for tube quenching
 
PUMP RELIEF
Series 300 valves can provide protection for large centrifugal pumps and simultaneously maintain maximum volume and pressure in the work area.
 
MANIFOLDING
The special interflow design of HYCOA diversion valves allows fabrication as clusters.
 
Materials:
Body - Fabricated from Schedule 160 ASTM A-524 Grade II seamless pipe, internally hardchrome-plated and honed.
Piston Rod & Seats - Stainless Steel (AISI 303)
Seals - End Buna-N (Nitrile)
Seat - Nylon GS (Note: Viton Seals available for special media requirements.
Pressure - Working (Max) - 300psi @ 100° F
Sizes - Series 300-F (Full-Flow) models: 2 to 20 inches; Series 300-V (Venturi) models in a comparable but smaller range because of design configuration.  Fabricated design permits 360° orientation for ports and may variations in port sizes are available to meet special requirements.
 
Special Note: In addition to 3-way diversion valves, HYCOA produces 2-way automatic shutoff valves that have the same basic design and operating features, including high-response balanced pistons, as the diversion models.
 
See Dimensions
 
 
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