Hydac DFP160QCXXA1.0 Manifold Mount Pressure Filter, 160 L/min

A ductile iron high-pressure filter with a top manifold face

The Hydac DFP160QCXXA1.0 (HYDAC catalogue item 305026) is a size 160 pressure filter from the DFP series. Its head is ductile iron and the bowl is steel, and the filter bolts on to a manifold with four mounting bolts, both inlet and outlet being on top. This catalogue item is the non-bypass version, rated for 42 gpm (160 L/min) and 315 bar (4568 psi), with NBR seals.

The series runs from size 60 to 1320, with flows up to 180 gpm, and either the high-collapse or the low-collapse element can be chosen depending on whether a bypass valve is installed.

Technical specifications

How the code is built

DFP 160 Q C XX A 1 . 0: DFP is the manifold-mount filter, 160 the size (1 inch nominal port), Q the 4500 psi rating, C the 0.84 inch port size for sizes 160 to 280, XX the filtration position, A no indicator, 1 the single-piece bowl and 0 the modification number. In this catalogue item the media and micron grade are shown as XX, so the code does not state a filtration rating. You must specify the element media and micron rating when you order.

Choosing bypass or non-bypass

A DFP with a bypass valve, which opens at 87 psid as the standard or at 43 psid as the option, can use a low-collapse element, while a non-bypass filter such as this one needs a high-collapse element rated for 210 bar. Use non-bypass where servo valves must never see unfiltered oil, and replace the element on the indicator signal. Electrical, visual and electronic differential indicators fit the head, and sizes 330 to 1320 allow two indicator ports.

Mount the filter with the bowl pointing down and leave room below it for the element to be withdrawn. Check the manifold port spacing and O-ring grooves against the datasheet dimension drawing before you commit to the order.

The datasheet names agricultural, construction, industrial, power generation, railway and steel industry hydraulics among the typical uses, and describes screw-in bowls that need only modest clearance for element replacement without washing contaminated fluid downstream. Fluids covered are hydrocarbon, synthetic, water-glycol and emulsion types once the right seal material is selected.

On the pressure side of a pump this class of filter protects valves and actuators from the particles generated by wear. Set the cleanliness target for your system, as in an ISO 4406 code, then pick the media and micron rating that deliver it at your flow.

Documents and quotation

The DFP datasheet is attached. Please specify the media, micron grade and indicator. See also our hydraulic filter housings range.

How the DFP160QCXXA1.0 pressure filter works

The DFP160QCXXA1.0 sits directly on a hydraulic manifold block, so both the inlet and the outlet are on the top face of the ductile iron head and there is no pipework between pump and filter. Pressure oil from the manifold enters the head, flows down into the steel bowl and passes through the filter element from outside to inside. Particles are retained on the outside of the media; clean oil rises through the element core and returns through the outlet port back into the manifold, on its way to valves and actuators.

HYDAC designs the DFP housings to withstand pressure surges as well as high static pressure loads, and gives a fatigue rating equal to the maximum allowable working pressure – 4568 psi (315 bar) at one million cycles. Because this code has no bypass valve, all oil must pass through the element at all times. That is why HYDAC recommends a high-collapse element (BH4HC Betamicron or V metal fibre, both rated 3045 psid / 210 bar) for non-bypass versions: the element must survive full differential pressure if it becomes blocked.

DFP size 160: additional datasheet data

Selection & ordering guide

Because the media and micron positions in this item code are shown as "XX", the DFP160QCXXA1.0 has to be completed with an element choice before ordering. The DFP model code offers:

• Element media: BH4HC Betamicron high collapse (3, 5, 10, 20 µm), V metal fibre (3, 5, 10, 20 µm), SN Sustainmicron (3, 5, 10, 20 µm) and W/HC wire mesh (25, 50, 100, 200 µm). SN and W/HC are low-collapse elements, intended for versions with a bypass valve.
• Bypass: omitted = no bypass (as here), B3 = 43 psid, B6 = 87 psid (standard for bypass versions).
• Indicator: A = no indicator, port plugged (as here); B = pop-up auto-reset; BM = pop-up manual reset; C = electric SPDT switch; D = electric switch with LED. Lamp voltages and a T100 thermal lockout are available for C and D.
• Seals: NBR standard, or V for FKM.
• Special fluids: SO263 for phosphate-ester fluids, the W option (brass-piston VD indicator) for HFA and HFC fluids, and SFREE elements designed to minimise electrostatic charge.

Replacement elements follow the code size + D + micron + media, for example 0160 D 010 BH4HC for a 10 µm high-collapse element.

Installation & maintenance

• Machine the manifold face to the DFP 160 port pattern and check O-ring seats and the 4-hole bolt pattern against a certified HYDAC print.
• Install with the bowl pointing down and keep at least 85 mm free below the bowl to unscrew it and withdraw the element.
• Always relieve system pressure before unscrewing the bowl; a 4500 psi line must never be opened under pressure.
• Fit a clogging indicator in the G 1/2 port if possible. Without a bypass, a blocked element will raise pump pressure, so changing elements on indicator signal protects the pump and relief valve.
• Check element sizing: HYDAC asks for the total pressure loss (housing plus element) to be corrected for actual viscosity and specific gravity.

Typical applications in Oman & the GCC

HYDAC names agricultural, construction, industrial, power generation, railway and steel/heavy industry hydraulics as DFP applications. In the region, manifold-mount pressure filters like the DFP160QCXXA1.0 are used on compact power units, servo and proportional valve stacks on test rigs, steel and aluminium mill hydraulics, and mobile equipment where a pipe-free installation saves space.

Why source from Seven Star LLC

Seven Star LLC supplies HYDAC high-pressure filters, elements and clogging indicators across Oman and the GCC. Tell us your flow, pressure, fluid and cleanliness target, and our team can help confirm the correct ordering code for the DFP160QCXXA1.0 and its element. Request a quote with your project details.