Model 50 Duplex Basket Strainer, 3/4" to 8"

Iron, Bronze, Carbon Steel or Stainless Steel - Threaded or Flanged

Overview

Duplex strainers remove damage causing particulate matter from the process media, and never have to be shut down for cleaning…the line can run continuously. When one strainer basket becomes full, flow is switched to the other. The first basket is removed, cleaned and is ready for use again. Haywards’ Model 50 has been the industry standard duplex strainer for over 70 years.

These strainers use the most simple, economical and trouble free design available, a tapered plug. This type of strainer is actually a high quality, pressure rated plug valve with integral straining baskets. A quick quarter turn of the handle diverts the flow from one basket strainer chamber to another and the flow is never shut off. No tools are needed for the operation and the plug is automatically positioned each time in exactly the right spot by integral stops.

Quick opening, swing away yoke design covers are standard on all sizes and no tools are required to open or close them…just a pair of hands. Each basket compartment has a side drain outlet and legs for bolting to the floor if required.

Typical applications include lubrication systems, cooling lines, heating and power systems, filling lines, chemical process lines…anywhere particulate matter has to be removed from the flow to protect system components and the line must run continuously.

Features

Options

	Continuous flow - no shutdown for basket cleaning
	Rugged tapered plug design
	Lift jack prevents plug galling
	Quick open cover requires no tools
	Large capacity baskets
	Threaded drain
	Machined basket seat
	Perforated or mesh stainless steel basket

	Ductile iron construction
	Basket perforations from 1/32" to 1/2"
	Basket mesh from 20 to 400
	Monel baskets
	Viton^®, TFE or EPDM seals
	Vent valves
	Drain valves
	1/4" NPT taps
	Pressure differential gauge and switch connections
	Magnetic basket inserts

C_v Factors*

Size	3/4"	1"	1-1/4"	1-1/2"	2"	2-1/2"	3"	4"	5"	6"	8"
Value	13	13	18	25	42	65	110	175	300	420	900
* For water with clean, perforated basket

Selection Chart

Size	Body Material	Plug Material	End Connections	Seals	Rating
3/4" to 2-1/2"*	Iron or Bronze	Iron or Bronze	Threaded, Flanged 125# / 150#	Buna N	200 psi@ 100F. All sizes except 8" 150 psi@ 100F. 8" size
3" to 8"	Iron or Bronze	Iron or Bronze	Flanged 125# / 150#
1" to 2" **	Carbon Steel	Iron, Bronze or SSTL	Threaded, Flanged 150#
3" to 8"**	Carbon Steel	Iron, Bronze or SSTL	Flanged 150#
1" to 2"**	Stainless Steel	Stainless Steel	Threaded, Flanged 150#	Viton^®
3" to 8"**	Stainless Steel	Stainless Steel	Flanged 150#	Viton^®
* 3/4" not available flanged ** 1- 1/4" and 5" not available in these materials