DFDK Series
Inline Duplex Filters
4500 PSI • Up to 90 GPM
Features
- The DFDK Filters have a filter head of ductile iron and a screw-in bowl of cold-formed steel.
- The filter housings are designed to withstand pressure surges as well as high static
pressure loads. - The screw-in bowl allows the filter element to be easily removed for replacement or cleaning.
A visual (pop-up), electrical, electrical/visual (lamp), or other electronic differential types of clogging indicators are available to suit each application. - DFDK filters are available only with high collapse pressure elements since no bypass is provided.
Technical Details
| Mounting Method | 4 Mounting Holes |
| Port Connection | 60/110: SAE-12 160/240/280: SAE-24 330/660/1320: 2˝ SAE-32 Flange Code 62 |
| Flow Direction Inlet Outlet | 60 – 280 330 – 1320 Top Top Side Back |
| Construction Materials | Head: Ductile Iron Bowl: Steel Housing (1320): Steel Cap (1320): Ductile Iron |
| Flow Capacity | 60/110: 13 gpm (50 lpm) 160/240/280: 35 gpm (132 lpm) 330/660/1320: 90 gpm (340 lpm) |
| Housing Pressure Rating | Maximum Operating Pressure: 4500 psi (315 bar) Proof Pressure: 6800 psi (475 bar) Fatigue Pressure: Contact HYDAC Office Burst Pressure: 18,270 psi (1260 bar) |
| Element Collapse Pressure Rating BH/HC, V | 3000 psid (207 bar) |
| Fluid Temperature Range | -22° to 250°F (-30° to 121°C) |
| Fluid Compatibility | Compatible with all petroleum oils and synthetic fluids rated for use with Fluoroelastomer or Ethylene Propylene seals. Contact HYDAC for information on special housing and element constructions available for use with water glycols, oil/water emulsions, and HWBF. |
| Indicator Trip Pressure | ΔP = 116 psid (8 bar) – 10% (Standard) |