Hydac_Filter_RFD

RFD Series
In-Tank / Inline Duplex Filters
360 PSI • Up to 400 GPM

Features

  • RFD 60 - 330 filters are constructed of aluminum.
  • Aluminum alloy is water tolerant - anodization is not required for water based fluids (HWBF).
  • RFD 660 - 1300 filters are constructed of ductile iron.
  • Non-welded housing design reduces stress concentrations and prevents fatigue failure.
  • Inlet/outlet port options include NPT (RFD 61-241 inlet only), SAE straight thread O-ring boss, and SAE 4-bolt flange to allow easy installation without costly adapters.
  • Bolt-on lid requires minimal clearance for removal.
  • O-ring seals are used to provide positive, reliable sealing. Choice of O-ring materials (Nitrile, Fluoroelastomer, EPDM) provides compatibility with petroleum oils, synthetic fluids, water-glycols, oil/water emulsions, and high water base fluids.
  • Reusable contamination basket prevents loss of retained contaminants into the reservoir during element replacement.
  • All RFD duplex filters have a ball-type selector valve to provide continuous filtration without system shut-down to change clogged elements.

Technical Details

Mounting Method 4 Mounting holes in the filter housing
Port Connection (Inlet / Outlet)
60/110 SAE-12 / SAE-12
160/240 SAE-16 / SAE-20
330 2˝ SAE Flange, Code 61 / 2˝ NPT
660 3˝ SAE Flange, Code 61 / 3˝ NPT
950 4˝ SAE Flange, Code 61 /
3-1/2˝ SAE Flange, Code 61
1300 4˝ SAE Flange, Code 61 /
4˝ SAE Flange, Code 61
Flow Direction Inlet: Side                        Outlet: Bottom
Construction Materials
Housing Lid
Transfer Valve
60 - 240 Aluminum Aluminum Steel
330 Aluminum Aluminum Aluminum
660-1300 Ductile Iron Ductile Iron Ductile Iron
Flow Capacity
60 16 gpm   (60 lpm)
110 29 gpm (110 lpm)
160 42 gpm (160 lpm)
240 63 gpm (240 lpm)
330 87 gpm     (330 lpm)
660 174 gpm   (660 lpm)
950 251 gpm   (950 lpm)
1300 343 gpm (1300 lpm)
Housing Pressure Rating
Maximum Operating Pressure
Proof Pressure
Fatigue Pressure
Burst Pressure
60/110 1080 psi (75 bar)
160/240 1230 psi (85 bar)
360 psi (25 bar)
540 psi (38 bar)
360 psi (25 bar) @ 700,000 cycles
330 1440 psi (100 bar)
660-1300 >1440 psi (100 bar)
Element Collapse Pressure Rating
BN/HC, W/HC, V               250 psid (17 bar)

ECO/N, BN/AM, P/HC, AM               145 psid (10 bar)
Fluid Temperature Range -22° to 250°F (-30° to 121°C)
Fluid Compatability
Compatible with all petroleum oils and synthetic fluids rated for use with Fluoroelastomer or Ethylene Propylene seals. Contact Womack for information on special housing and element constructions available for use with water glycols, oil/water emulsions, and HWBF.
Indicator Trip Pressure
P = 29 psi (2 bar) - 10% (standard)

P = 72 psi (5 bar) - 10% (optional)
Bypass Valve Cracking Pressure
ΔP = 15 psid (1 bar) +10%
ΔP = 43 psid (3 bar) +10% (standard)

ΔP = 87 psid (6 bar) +10% (optional)