Perko 0594 Duplex Intake Water Strainer Spare Parts

Overview

The Perko 0594 Duplex Intake Water Strainer spare parts range is a group of replacement components for Perko duplex raw-water strainers used in engine cooling intake systems. These parts help keep the strainer serviceable when baskets, gaskets, covers, cylinders, castings, tie rods, wing nuts, or cover bolts need replacement after routine maintenance or corrosion exposure.

The 0594 duplex strainer layout allows one side of the strainer to be closed and cleaned while cooling water continues through the other side when the unit is properly sized for the engine. The complete strainer uses a cast bronze body, an integral 4-position control valve, two 316 stainless steel strainer baskets, 8 outside tie rods, and screen holes measuring 0.079 in with 47% open area.

This range is most useful for boat owners, yards, and mechanics maintaining larger raw-water intake systems where keeping the strainer clean and sealed matters for dependable cooling flow during coastal cruising, fishing, commercial duty, or longer offshore runs.

Key features

• Replacement parts for Perko Fig. 0594 duplex intake water strainers used in marine raw-water intake and engine cooling systems.
• Supports service of strainer assemblies with cast bronze construction, a 4-position control valve, and two 316 stainless steel strainer baskets.
• Available components cover common wear and service items, including baskets, gasket kits, cover hardware, tie rods, transparent cylinder, cover with gasket, and top casting.
• Basket options are matched to strainer sizes, including size 8 and sizes 9 and 10 configurations.
• Rubber gasket kit includes the sealing parts needed for the duplex body and covers, with 2 cover gaskets and 4 body gaskets.
• Useful for maintenance after basket cleaning, winterizing, gasket compression, cover removal, or hardware replacement in saltwater intake service.

Variants

This product range is offered as separate spare parts for different service points on the Perko duplex intake water strainer. The available configurations vary by component type, including basket strainer size, cover assembly, cover hardware, gasket kit, tie rods, top casting, and transparent cylinder.

The listed parts are tied to Perko duplex intake strainer service rather than electrical or network compatibility. Fit should be checked against the existing strainer size and the part being replaced before installation, especially where size 8, size 9, and size 10 basket or body components are involved.

Installation and service notes

Raw-water strainer work should be done with the seacock closed and the intake line secured. On a duplex strainer, the control valve position also matters, since the system can isolate one side for cleaning while the other side remains available for water flow when the installation is sized and operated correctly.

Gaskets should be seated cleanly on dry, undamaged mating surfaces before the cover or cylinder is tightened back into place. Cover hardware and tie rods should be tightened evenly so the transparent cylinder and gaskets seal without uneven pressure.

Compatibility and fit

These parts are intended for Perko 0594 duplex intake water strainers and share several service components with Perko Fig. 0493 strainers. Match the replacement part to the original strainer catalog size and component location rather than relying only on appearance, since similar strainer parts can differ by height, basket size, and gasket layout.

For size reference, the 0594 duplex strainer range includes 1-1/2 in, 2 in, and 2-1/2 in pipe size versions. The 1-1/2 in version uses a 6 x 8 in cylinder and a 3-5/16 x 8-7/16 in basket on each side, while the 2 in and 2-1/2 in versions use a 6 x 12 in cylinder and a 3-5/16 x 12-1/4 in basket on each side.

Maintenance and care

Inspect the basket, cover gasket, body gaskets, tie rods, and cover hardware whenever the strainer is opened for cleaning. Replace gaskets that have flattened, cracked, swollen, or taken a permanent set, and replace baskets that show damage that could let debris pass into the cooling circuit.

The transparent cylinder should be kept clean enough to see water flow and debris buildup during inspection. After servicing, check for leaks with the seacock open and the engine running at the dock before returning to normal operation.