Y-Strainers

Pipeline Y-Strainers & WYE Strainers

Pipeline y-strainers & wye strainers offer a compact and economical means of straining debris from pipelines. Keckley Y-strainers are furnished standard with drain connections and pipe plugs. Most commonly, Y-strainers are fitted in the field with nipples and drain valves to permit the strainer screen to be cleaned while the system is still in process. By opening the drain valve while the system is under pressure, the debris trapped in the screen is “blown“ through this connection helping to reduce system shut-downs for maintenance and cleaning. Read more.

Keckley Y-strainers are offered in both domestic and foreign castings with a wide variety of straining options for almost any application. Keckley does offer Y-strainers that meet the “American Recovery and Reinvestment Act” (A.R.R.A.) and “Buy American Act”. Keckley also provides Y-strainers that meet or exceed military specifications: WW-S-2739: TYPE 1, WW-S-2739: TYPE 2, and NAVSHIPS 810-841499.

Keckley offers bronze plumbing Y-strainers that meet the California and Vermont “Low Lead” legislation. Keckley Cast Iron, Ductile Iron, Nickel Aluminum Bronze, Carbon Steel, and Stainless Steel strainers already meet the requirement of having less than one quarter of one percent of lead by weight.

Y-strainers are available in Cast Iron, Ductile Iron, Bronze, Nickel Aluminum Bronze, Carbon Steel, Stainless Steel, and a variety of specialty metals including Alloy 20, Hastelloy C276, Monel, Chrome-Moly, and Titanium to withstand thermal or mechanical shock and corrosion. Canadian Registration Numbers (CRN’s) are also available in specific models.

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Cast Iron Y-Strainers (ASTM A 126, Class B)

Size Range	Pressure Class	End Connection	Style
1/4" - 4"	250 lb.	Threaded	B
1/4" - 3"	250 lb.	Threaded	B7
2" - 24"	125 lb.	FF Flange	A
2" - 16"	250 lb.	RF Flange	A

Ductile Iron Y-Strainers (ASTM A 536, Grade 65-45-12)

Image Size Range Pressure Class End Connection Style Catalog Page Submittal Drawing Pressure Drop Chart CAD Product Numbers

1/4" - 2" 300 lb. Threaded BDI

Bronze Y-Strainers (ASTM B 62 & B 584)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	125 lb.	Solder Joint	E-150
1/4" - 3"	125 lb.	Threaded	F-150
1/4" - 3"	250 lb.	Solder Joint	E-300
1/4" - 3"	250 lb.	Threaded	F-300
1/2" - 12"	150 lb.	FF Flange	BA-7
1/2" - 12"	300 lb.	FF Flange	BA-7

Nickel Aluminum Bronze Y-Strainers (ASTM B 148, C95800)

Image	Size Range	Pressure Class	End Connection	Style	Catalog Page	Submittal Drawing	Pressure Drop Chart	CAD	Product Numbers
	1/2" - 12"	150 lb.	FF Flange	BA-7
	1/2" - 12"	300 lb.	FF Flange	BA-7

Carbon Steel Y-Strainers (ASTM A 216, Grade WCB)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SB-7
1/4" - 3"	600 lb.	Socket Weld	SB-7
1/4" - 3"	600 lb.	Threaded	SB-7BC
1/4" - 3"	600 lb.	Socket Weld	SB-7BC
1/2" - 3"	1500 lb.	Threaded	SB
1/2" - 3"	1500 lb.	Socket Weld	SB
1/2" - 14"	150 lb.	RF Flange	SA-7
1/2" - 14"	300 lb.	RF Flange	SA-7
1/2" - 12"	150 lb.	Schd 40	SA-7
1/2" - 12"	300 lb.	Schd 40	SA-7
1/2" - 12"	600 lb.	RF Flange	SA

316 Stainless Steel Y-Strainers (ASTM A 351, Grade CF8M)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7
1/4" - 3"	600 lb.	Socket Weld	SSB-7
1/4" - 3"	600 lb.	Threaded	SSB-7BC
1/4" - 3"	600 lb.	Socket Weld	SSB-7BC
1/2" - 3"	1500 lb.	Threaded	SSB
1/2" - 3"	1500 lb.	Socket Weld	SSB
1/2" - 14"	150 lb.	RF Flange	SSA-7
1/2" - 14"	300 lb.	RF Flange	SSA-7
1/2" - 12"	150 lb.	Schd 40	SSA-7
1/2" - 12"	300 lb.	Schd 40	SSA-7
1/2" - 12"	600 lb.	RF Flange	SSA

Alloy 20 Y-Strainers (ASTM A 351, Grade CN7M)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7A2
1/4" - 3"	600 lb.	Socket Weld	SSB-7A2
1/4" - 3"	600 lb.	Threaded	SSB-7BCA2
1/4" - 3"	600 lb.	Socket Weld	SSB-7BCA2
1/2" - 3"	1500 lb.	Threaded	SSB-A2
1/2" - 3"	1500 lb.	Socket Weld	SSB-A2
1/2" - 14"	150 lb.	RF Flange	SSA-7A2
1/2" - 14"	300 lb.	RF Flange	SSA-7A2
1/2" - 12"	150 lb.	Schd 40	SSA-7A2
1/2" - 12"	300 lb.	Schd 40	SSA-7A2
1/2" - 12"	600 lb.	RF Flange	SSA-A2

Hastelloy C276 Y-Strainers (ASTM A 494, Grade CW12MV)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7HC
1/4" - 3"	600 lb.	Socket Weld	SSB-7HC
1/4" - 3"	600 lb.	Threaded	SSB-7BCHC
1/4" - 3"	600 lb.	Socket Weld	SSB-7BCHC
1/2" - 3"	1500 lb.	Threaded	SSB-HC
1/2" - 3"	1500 lb.	Socket Weld	SSB-HC
1/2" - 14"	150 lb.	RF Flange	SSA-7HC
1/2" - 14"	300 lb.	RF Flange	SSA-7HC
1/2" - 12"	150 lb.	Schd 40	SSA-7HC
1/2" - 12"	300 lb.	Schd 40	SSA-7HC
1/2" - 12"	600 lb.	RF Flange	SSA-HC

Monel Y-Strainers (ASTM A 494, Grade M35-2)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7ML
1/4" - 3"	600 lb.	Socket Weld	SSB-7ML
1/4" - 3"	600 lb.	Threaded	SSB-7BCML
1/4" - 3"	600 lb.	Socket Weld	SSB-7BCML
1/2" - 3"	1500 lb.	Threaded	SSB-ML
1/2" - 3"	1500 lb.	Socket Weld	SSB-ML
1/2" - 14"	150 lb.	RF Flange	SSA-7ML
1/2" - 14"	300 lb.	RF Flange	SSA-7ML
1/2" - 12"	150 lb.	Schd 40	SSA-7ML
1/2" - 12"	300 lb.	Schd 40	SSA-7ML
1/2" - 12"	600 lb.	RF Flange	SSA-ML

Chrome-Moly Y-Strainers (ASTM A 217, Grade WC6 & WC9)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SB-7C6
1/4" - 3"	600 lb.	Socket Weld	SB-7C6
1/4" - 3"	600 lb.	Threaded	SB-7BCC6
1/4" - 3"	600 lb.	Socket Weld	SB-7BCC6
1/2" - 3"	1500 lb.	Threaded	SB-C6
1/2" - 3"	1500 lb.	Socket Weld	SB-C6
1/2" - 14"	150 lb.	RF Flange	SA-7C6
1/2" - 14"	300 lb.	RF Flange	SA-7C6
1/2" - 12"	150 lb.	Schd 40	SA-7C6
1/2" - 12"	300 lb.	Schd 40	SA-7C6
1/2" - 12"	600 lb.	RF Flange	SA-C6
1/4" - 3"	600 lb.	Threaded	SB-7C9
1/4" - 3"	600 lb.	Socket Weld	SB-7C9
1/4" - 3"	600 lb.	Threaded	SB-7BCC9
1/4" - 3"	600 lb.	Socket Weld	SB-7BCC9
1/2" - 3"	1500 lb.	Threaded	SB-C9
1/2" - 3"	1500 lb.	Socket Weld	SB-C9
1/2" - 14"	150 lb.	RF Flange	SA-7C9
1/2" - 14"	300 lb.	RF Flange	SA-7C9
1/2" - 12"	150 lb.	Schd 40	SA-7C9
1/2" - 12"	300 lb.	Schd 40	SA-7C9
1/2" - 12"	600 lb.	RF Flange	SA-C9

Titanium Y-Strainers (ASTM B 367, Grade PD7B)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7T7
1/4" - 3"	600 lb.	Socket Weld	SSB-7T7
1/4" - 3"	600 lb.	Threaded	SSB-7BCT7
1/4" - 3"	600 lb.	Socket Weld	SSB-7BCT7
1/2" - 3"	1500 lb.	Threaded	SSB-T7
1/2" - 3"	1500 lb.	Socket Weld	SSB-T7
1/2" - 14"	150 lb.	RF Flange	SSA-7T7
1/2" - 14"	300 lb.	RF Flange	SSA-7T7
1/2" - 12"	150 lb.	Schd 40	SSA-7T7
1/2" - 12"	300 lb.	Schd 40	SSA-7T7
1/2" - 12"	600 lb.	RF Flange	SSA-T7

Duplex Y-Strainers (ASTM A 351, Grade CD4MCu)

Size Range	Pressure Class	End Connection	Style
1/4" - 3"	600 lb.	Threaded	SSB-7DP
1/4" - 3"	600 lb.	Socket Weld	SSB-7DP
1/4" - 3"	600 lb.	Threaded	SSB-7BCDP
1/4" - 3"	600 lb.	Socket Weld	SSB-7BCDP
1/2" - 3"	1500 lb.	Threaded	SSB-DP
1/2" - 3"	1500 lb.	Socket Weld	SSB-DP
1/2" - 14"	150 lb.	RF Flange	SSA-7DP
1/2" - 14"	300 lb.	RF Flange	SSA-7DP
1/2" - 12"	150 lb.	Schd 40	SSA-7DP
1/2" - 12"	300 lb.	Schd 40	SSA-7DP
1/2" - 12"	600 lb.	RF Flange	SSA-DP

Other Materials, Pressure Classes, or Designs

Contact Keckley at (800)532-5539 for other body materials, pressure classes, and designs.

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Pipeline Strainers