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Wye Strainers

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Wye strainers (Y-Strainers) remove solids from steam, gases, and hydronic systems with the use of a wire mesh straining screen. Wye strainers derive their name from their configuration which includes a branch angled off the flow path forming a Y pattern. These unique valves are commonly used to protect equipment such as pumps, control valves, steam traps, etc. from dirt or debris.

Wye strainers are a cost effective solution when the amount of debris in a system is small and frequent cleaning is not needed. The strainer screen is manually cleaned by shutting down the line and removing the strainer cap. They are commonly installed in gaseous systems such as steam, natural gas, or air. The compact shape of the Y-strainer is durable and can accommodate high pressures that are common in these types of systems. For handling steam, a Y-Strainer is the standard and is almost universally used.

A wye strainer may be installed either horizontally or vertically. However, in both cases, the mesh screen or "leg" must be facing down so the entrapped solids can be properly collected and held for disposal.

Wye Strainers are generally made of cast iron or bronze. Iron is used most often because it is the most economical, and has good corrosion resistance in most applications. Bronze handles thermal and mechanical shock better, is better in some corrosive applications, but has a limited temperature range.

We offer a wide selection of Hydrovalve, Watts, and Febco wye Strainers for residential or commercial applications.
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Product Image of 1/2" Bronze Wye Strainer, Lead Free (Threaded)
$9.24 each
BOX UP & SAVE 18%
$60.64 box of 8
$7.58 each
In Stock
Get 462 by Thu, Jul 31
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Product Image of 3/4" Bronze Wye Strainer, Lead Free (Threaded)
$10.66 each
BOX UP & SAVE 20%
$68.24 box of 8
$8.53 each
In Stock
Get 474 by Thu, Jul 31
In Stock
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Product Image of 1" Bronze Wye Strainer, Lead Free (Threaded)
$22.89 each
BOX UP & SAVE 20%
$146.32 box of 8
$18.29 each
In Stock
Get 681 by Thu, Jul 31
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Product Image of 1-1/4" Bronze Wye Strainer, Lead Free (Threaded)
$43.50 each
BOX UP & SAVE 11%
$311.04 box of 8
$38.88 each
In Stock
Get 209 by Thu, Jul 31
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Product Image of 1-1/2" Bronze Wye Strainer, Lead Free (Threaded)
$38.61 each
BOX UP & SAVE 10%
$276.64 box of 8
$34.58 each
In Stock
Get 181 by Thu, Jul 31
In Stock
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Product Image of 2" Bronze Wye Strainer, Lead Free (Threaded)
$67.20 each
BOX UP & SAVE 11%
$480.64 box of 8
$60.08 each
In Stock
Get 223 by Thu, Jul 31
In Stock
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Product Image of 2" LF777SM3-20 Lead Free Bronze Wye Strainer (Threaded)
$584.73 each
In Stock
Get 3 by Thu, Jul 31
In Stock
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Product Image of 1/2" LF777SI Lead Free Brass Wye Strainer (Threaded)
$75.55 each
In Stock
Get 111 by Thu, Jul 31
In Stock
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Product Image of 3/4" LF777SI Lead Free Brass Wye Strainer (Threaded)
$101.62 each
In Stock
Get 53 by Thu, Jul 31
In Stock
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Product Image of 1" LF777SI Lead Free Brass Wye Strainer (Threaded)
$121.37 each
In Stock
Get 212 by Thu, Jul 31
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Product Image of 3" RK 777SI-Screen (20 Mesh)
3" RK 777SI-Screen (20 Mesh)
SKU: 0899126
Watts
SKU: 0899126
Brand: Watts
$213.87 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1-1/2" RK 777SI-Screen (20 Mesh)
1-1/2" RK 777SI-Screen (20 Mesh)
SKU: 0899123
Watts
SKU: 0899123
Brand: Watts
$49.32 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1" RK 777SI-Gasket
1" RK 777SI-Gasket
SKU: 0899112
Watts
SKU: 0899112
Brand: Watts
$14.79 each
In Stock
Get 71 by Thu, Jul 31
In Stock
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Product Image of 3/4" RK 777SI-Screen (20 Mesh)
3/4" RK 777SI-Screen (20 Mesh)
SKU: 0899120
Watts
SKU: 0899120
Brand: Watts
$28.23 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1" RK 777SI-Screen (20 Mesh)
1" RK 777SI-Screen (20 Mesh)
SKU: 0899121
Watts
SKU: 0899121
Brand: Watts
$30.95 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 3/4" RK 777SI-Gasket
3/4" RK 777SI-Gasket
SKU: 0899111
Watts
SKU: 0899111
Brand: Watts
$11.68 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1/2" RK 777SI-Screen (20 Mesh)
1/2" RK 777SI-Screen (20 Mesh)
SKU: 0899119
Watts
SKU: 0899119
Brand: Watts
$16.97 each
Backorder
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Product Image of 1-1/4" LF777SI Lead Free Brass Wye Strainer (Threaded)
$174.09 each
In Stock
Get 23 by Thu, Jul 31
In Stock
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Product Image of 1-1/2" LF777SI Lead Free Brass Wye Strainer (Threaded)
$245.41 each
In Stock
Get 27 by Thu, Jul 31
In Stock
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Product Image of 2" LF777SI Lead Free Brass Wye Strainer (Threaded)
$360.92 each
In Stock
Get 54 by Thu, Jul 31
In Stock
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Product Image of 2-1/2" LF777SI Lead Free Brass Wye Strainer (Threaded)
$431.36 each
In Stock
Get 13 by Thu, Jul 31
In Stock
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Product Image of 3" LF777SI Lead Free Brass Wye Strainer (Threaded)
$629.96 each
In Stock
Get 31 by Thu, Jul 31
In Stock
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Product Image of 3/4" LFS777SI Lead Free Brass Wye Strainer (Solder)
$101.62 each
In Stock
Get 124 by Thu, Jul 31
In Stock
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Product Image of 3/8" LF777SI Lead Free Bronze Wye Strainer (Threaded)
$57.39 each
BOX UP & SAVE 13%
$399.52 box of 8
$49.94 each
In Stock
Get 20 by Thu, Jul 31
In Stock
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Product Image of 1" LFS777SI Lead Free Brass Wye Strainer (Solder)
$121.37 each
In Stock
Get 44 by Thu, Jul 31
In Stock
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Product Image of 1/2" LFS777SI Lead Free Brass Wye Strainer (Solder)
$75.55 each
In Stock
Get 11 by Thu, Jul 31
In Stock
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Product Image of 1-1/4" LFS777SI Lead Free Brass Wye Strainer (Solder)
$122.59 each
In Stock
Get 19 by Thu, Jul 31
In Stock
Get 19 by Thu, Jul 31
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Product Image of 2" LFS777SI Lead Free Brass Wye Strainer (Solder)
$360.92 each
In Stock
Get 17 by Thu, Jul 31
In Stock
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Product Image of 1/2" 77SI Cast Iron Wye Strainer (Threaded)
1/2" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220071
Watts
SKU: 0220071
Brand: Watts
(9)
$29.01 each
BOX UP & SAVE 4%
$277.70 box of 10
$27.77 each
In Stock
Get 88 by Thu, Jul 31
In Stock
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Product Image of 3/4" 77SI Cast Iron Wye Strainer (Threaded)
3/4" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220073
Watts
SKU: 0220073
Brand: Watts
(9)
$34.26 each
BOX UP & SAVE 4%
$329.30 box of 10
$32.93 each
In Stock
Get 127 by Thu, Jul 31
In Stock
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Product Image of 1" 77SI Cast Iron Wye Strainer (Threaded)
1" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220075
Watts
SKU: 0220075
Brand: Watts
(9)
$38.58 each
BOX UP & SAVE 9%
$282.32 box of 8
$35.29 each
In Stock
Get 102 by Thu, Jul 31
In Stock
Get 102 by Thu, Jul 31
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Product Image of 1-1/4" 77SI Cast Iron Wye Strainer (Threaded)
1-1/4" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220077
Watts
SKU: 0220077
Brand: Watts
(9)
$57.76 each
In Stock
Get 25 by Thu, Jul 31
In Stock
Get 25 by Thu, Jul 31
Compare
Product Image of 1-1/2" 77SI Cast Iron Wye Strainer (Threaded)
1-1/2" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220079
Watts
SKU: 0220079
Brand: Watts
(9)
$70.60 each
In Stock
Get 25 by Thu, Jul 31
In Stock
Get 25 by Thu, Jul 31
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Product Image of 2" 77SI Cast Iron Wye Strainer (Threaded)
2" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220081
Watts
SKU: 0220081
Brand: Watts
(9)
$109.41 each
In Stock
Get 29 by Thu, Jul 31
In Stock
Get 29 by Thu, Jul 31
Compare
Product Image of 2-1/2" 77SI Cast Iron Wye Strainer (Threaded)
2-1/2" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220084
Watts
SKU: 0220084
Brand: Watts
(9)
$237.78 each
In Stock
Get 11 by Thu, Jul 31
In Stock
Get 11 by Thu, Jul 31
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Product Image of 3" 77SI Cast Iron Wye Strainer (Threaded)
3" 77SI Cast Iron Wye Strainer (Threaded)
SKU: 0220085
Watts
SKU: 0220085
Brand: Watts
(9)
$288.96 each
In Stock
Get 8 by Thu, Jul 31
In Stock
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Product Image of 1" LFS777SM1 Bronze Wye Strainer w/ Tapped Retainer Cap, Lead Free
$187.95 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
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Product Image of 3/4" LF777SM1-20 Lead Free Bronze Wye Strainer (Threaded)
$123.95 each
In Stock
Get 9 by Thu, Jul 31
In Stock
Get 9 by Thu, Jul 31
Compare
Product Image of 1-1/4" LF777SM1-20 Lead Free Bronze Wye Strainer (Threaded)
$202.68 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1" LF777SM1-20 Lead Free Bronze Wye Strainer (Threaded)
$164.43 each
In Stock
Get 68 by Fri, Aug 1 - Mon, Aug 4
In Stock
Get 68 by Fri, Aug 1 - Mon, Aug 4
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Product Image of 1-1/2" LF777SM1-20 Lead Free Bronze Wye Strainer (Threaded)
$355.39 each
In Stock
Get 3 by Thu, Jul 31
In Stock
Get 3 by Thu, Jul 31
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Product Image of 3/4" LF777SM1-100 Lead Free Bronze Wye Strainer (Threaded)
$320.27 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
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Product Image of 2" LF777SM3-80 Lead Free Bronze Wye Strainer (Threaded)
$788.67 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 1" LF777SM1-100 Lead Free Bronze Wye Strainer (Threaded)
$341.14 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
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Product Image of 1/2" LFS777S Bronze Wye Strainer, Lead Free (Solder)
$153.59 each
In Stock
Get 1 by Fri, Aug 1 - Mon, Aug 4
In Stock
Get 1 by Fri, Aug 1 - Mon, Aug 4
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Product Image of 1-1/2" LFS777S Bronze Wye Strainer, Lead Free (Solder)
$413.91 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
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Product Image of 2" LFS777S 20 M3 Bronze Wye Strainer, Lead Free (Solder)
$618.46 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
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Product Image of 1/2" 77SM1 Cast Iron Wye Strainer w/ Tapped Blowdown
1/2" 77SM1 Cast Iron Wye Strainer w/ Tapped Blowdown
SKU: 0220202
Watts
SKU: 0220202
Brand: Watts
$60.64 each
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Backorder
Get it by Wed, Aug 27 - Thu, Sep 25
Resources
FAQs, Manuals & Videos
Articles
More About Wye Strainers
Wye strainers (Y-Strainers) remove solids from steam, gases, and hydronic systems with the use of a wire mesh straining screen. Wye strainers derive their name from their configuration which includes a branch angled off the flow path forming a Y pattern. These unique valves are commonly used to protect equipment such as pumps, control valves, steam traps, etc. from dirt or debris.

Wye strainers are a cost effective solution when the amount of debris in a system is small and frequent cleaning is not needed. The strainer screen is manually cleaned by shutting down the line and removing the strainer cap. They are commonly installed in gaseous systems such as steam, natural gas, or air. The compact shape of the Y-strainer is durable and can accommodate high pressures that are common in these types of systems. For handling steam, a Y-Strainer is the standard and is almost universally used.

A wye strainer may be installed either horizontally or vertically. However, in both cases, the mesh screen or "leg" must be facing down so the entrapped solids can be properly collected and held for disposal.

Wye Strainers are generally made of cast iron or bronze. Iron is used most often because it is the most economical, and has good corrosion resistance in most applications. Bronze handles thermal and mechanical shock better, is better in some corrosive applications, but has a limited temperature range.

We offer a wide selection of Hydrovalve, Watts, and Febco wye Strainers for residential or commercial applications.
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Zurn (9)
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Bluefin (6)
Hoffman (1)
Legend Valve (1)
Macon Balancing (14)
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1/4" (1)
3/8" (2)
1/2" (24)
3/4" (30)
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2" (19)
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3" (8)
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C x C (26)
Flanged x Flanged (18)
FNPT x FNPT (89)
FNPT x MNPT (1)
Press x Press (17)

Connection Method

Flanged (18)
Press (17)
Sweat (27)
Threaded (87)

Material

Brass (30)
Bronze (43)
Cast Bronze (4)
Cast Iron (33)
Copper (1)
Ductile Iron (2)
DZR Brass (20)
Forged Brass (14)

Review Score

(32)
(10)
(1)

Price Range

Under $1 (1)
$5 to $10 (4)
$10 to $15 (3)
$15 to $20 (3)
$20 to $25 (3)
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$30 to $35 (3)
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