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DHDA-33

Product catalog summary

Product Overview:
The PU-DHDA33/4-N*-L1** series is a double airhead, double acting hydraulic pump designed for high flow applications such as pressure testing, chemical injection, and hydraulic power. It features infinitely variable output pressure and flow, maintains static pressure without heat generation or power consumption, and is suitable for oil or water applications. The pump is known for its robust construction and ease of maintenance.

Performance Data:

Max Rated Output Pressure: 6,728 psi (464 bar)
Output Per Cycle: 15.6 in³ (256 cc)
Max Flow: 1,934 in³/min (31 litre/min)
Max Air Supply Pressure: 100 psi (7 bar)
Ratio: 66:1
Air Consumption: 200 scfm (5,664 Nl/min)

Seal Options:

N*: Nitrile (Buna-N) Main Seal and Check Valve Seals
V: Viton (FKM) Main Seal and Check Valve Seals
C: Chemraz (FFKM) Main Seal and Check Valve Seals

Construction Materials:

Air Motor: Anodised Aluminium with Nitrile (Buna-N) Seals
Hydraulic Cylinder: Aluminium Bronze
Piston: Stainless Steel with Corrosion Resistant Chrome Finish
Check Valves: Stainless Steel
Pilot Air Valves: Brass/Stainless Steel Internals with Nitrile (Buna-N) Seals

Connections:

Hydraulic Inlet: 1" NPT(F)
Hydraulic Outlet: 1/2” NPT(F)
Air Inlet: 1” NPT(F)
Pilot Air Supply: 1/8" BSPP(F)

Common Options:

/A: ATEX (94/9/EC) II 2GD c T5
/F: Panel mount digital stroke counter (non ATEX)
/G: Panel mount pneumatic stroke counter

Pressure Data:

Air Pressure vs. Hydraulic Pressure:

20 psi (1.4 bar) results in 1,346 psi (46 bar)
40 psi (2.8 bar) results in 2,692 psi (186 bar)
60 psi (4 bar) results in 4,036 psi (278 bar)
80 psi (5.5 bar) results in 5,382 psi (371 bar)
100 psi (7 bar) results in 6,728 psi (464 bar)

Catalog excerpts

Hydratron Ltd, Earle House, Atlantic Street, Technical Data Sheet Broadheath, Cheshire, England WA14 5DD TECHNICAL DATA SHEET PRODUCT DHDA Double Airhead Double Acting Air operated, high flow, double headed-double acting hydraulic pumps for pressure testing, chemical injection and hydraulic power. Infinitely variable output pressure and flow Holds static pressure without generating heat or consuming power Standard models are suitable for oil or water applications Well proven and trouble-free operation Designed for ease of maintenance Low cost servicing Robust construction PERFORMANCE DATA Max Rated Output Pressure SEAL OPTIONS (N*) N* (standard) Nitrile (Buna-N) Main Seal and Check Valve Seals Viton (FKM) Main Seal and Check Valve Seals Chemraz (FFKM) Main Seal and Check Valve Seals Anodised Aluminium / Nitrile (Buna-N) Seals

Open the catalog to page 1

Technical Data Sheet Pag. 2 of 3 Hydraulic Cylinder Aluminium Bronze Stainless Steel + Corrosion Resistant Chrome Finish Check Valves Stainless Steel (Seals as per Selected Seal Option) Brass / Stainless Steel Internals / Nitrile (Buna-N) Seals / Stainless Steel Pipework Plated Steel Silencer Stainless Steel Silencer CONNECTIONS Hydraulic Inlet Hydraulic Outlet COMMON OPTIONS (BUT NOT LIMITED TO) /A Panel mount digital stroke counter (non ATEX) Panel mount pneumatic stroke counter GENERAL LAYOUT DRAWING | Hydratron is a part of the Pryme Group

Open the catalog to page 2

Technical Data Sheet Pag. 3 of 3 HYDRAULIC PRESSURE STATIC / STALL CONDITIONS AIR PRESSURE HYDRAULIC PRESSURE FLOW CURVE | Hydratron is a part of the Pryme Group

Open the catalog to page 3

DHDA-33

DHDA-33

Catalog excerpts

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