SYMBOL:
 |
DESCRIPTION
A specialized flow divider/combiner valve manifold, commonly applied in hydraulic motor drive applications with uneven pressure loads caused by steering or ground conditions. This valve/manifold assembly uses the FD16-40 cartridge valve; see page 5.604.1.
OPERATION
In the dividing mode, the FDC16 will divert input flow from valve port 3 (V) to ports 2 (C2) and 4 (C1) based on the ratio specified, while pressure at 2 and 4 remains relatively equal. If a pressure differential develops, fluid will be transfered to the lower pressure port from the higher pressure port via an internal body orifice: 4 to 2 or 2 to 4.
In the combining mode, the internal orifice will serve to equalize load pressures, preventing combiner spool lock-up.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
RATINGS
Operating Pressure: 207 bar (3000 psi) maximum with aluminum body;
345 bar (5000 psi) with ductile iron body and polyurethane seals
Flow Rate: 197 lpm (52 gpm) input maximum with model code 99
Flow Options:
Input Flow: 25 to 98.4 lpm (6.5 to 26 gpm); Ratio: 50:50; Model Code: 44
Input Flow: 32 to 128 lpm (8.5 to 34 gpm); Ratio: 50:50; Model Code: 66
Input Flow: 57 to 167 lpm (15 to 44 gpm); Ratio: 50:50; Model Code: 88
Input Flow: 68 to 197 lpm (18 to 52 gpm); Ratio: 50:50; Model Code: 99
Other ratio options available; consult factory.
Balancing Orifice: 1.52 mm (0.06 in.) standard
Standard Compensator Bias Spring: 2.07 bar (30 psid)
Flow Accuracy: 10% from 33 to 100% of rated flow
with approx equal port loads at 2 (C2) and 4 (C1)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals;
-54 to 107°C (-65°F to 225°F) with Polyurethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Seal Kit: for FD16-40 cartridge: SK16-4x-MMM; See page 8.650.1 |
