FLOW CONTROLS
Delta Power Company
4484 Boeing Drive - Rockford, IL 61109
WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described
(herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability.
Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com
HT-NVA Adjustable Flow Control Valve, Needle Type
DESCRIPTION
“High Pressure” 12 size, 1 1/16-12 thread, “Tecnord” series, needle flow control valve.
OPERATION
The HT-NVA adjusts from fully open to fully closed by turning adjusting screw clockwise. When adjusted open
the valve allows flow (1) to (2) and (2) to (1). When fully closed the valve blocks flow from (1) to (2) and (2) to
(1).
FEATURES
• Hardened parts for long life.
• Industry common cavity.
HYDRAULIC SYMBOL
NOTE: Valves with the knob option are NOT to be adjusted under
pressure.
PERFORMANCE
Actual Test Data (Cartridge Only)
VALVE SPECIFICATIONS
Nominal Flow 35 GPM (133 LPM)
Rated Operating Pressure 5000 PSI (345 bar)
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/16/13
Media Operating
Temperature Range
-40° to 250° F (-40° to 120° C)
Weight .72 lbs. (.32 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque
Requirements
70 ft-lbs (94.9 Nm)
Cavity TECNORD 2W
Cavity Form Tool (Finishing) 40500032
Seal Kit 21191302
0
50
100
150
200
0 5 10 15 20 25 30 35 40
Flow (GPM)
Pressure Drop (PSI)
0
5
10
0 25 50 75 100 125 150
Flow (LPM)
Pressure Drop (BAR)
Port 1 to 2 (valve fully open)
Page 400
FLOW CONTROLS
Delta Power Company
4484 Boeing Drive - Rockford, IL 61109
WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described
(herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability.
Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com
DIMENSIONS
ORDERING INFORMATION
HT-NVA - -
OPTIONS BODIES
Buna Standard 00 Blank Without Body
Viton Standard V0 S #12 SAE Ports
Buna, Screen A0
Viton, Screen W0
Buna, Knob 0K
Viton, Knob VK
Buna, Screen, Knob AK
Viton, Screen, Knob WK
NOTE: Use Screen Only if Flow
Direction is From 1 to 2
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