OVERVIEW: Stayflow PVC Gray, PVC Clear & CPVC Y-Check Valves are an angle type check valve that automatically stops reverse flow by the dead weight of the disc plug. Y-checks are less affected by turbulent flow and typically have lower shutoff characteristics than ball checks, and also have improved flow characteristics over ball check valves. In-line clean out is possible with the easy access cap.
Valves are available in 1/2" through 4" with Socket, SR Threaded or Flanged end connections, plus True Union styles with Socket and SR Threaded ends. All valves have a Buttress thread bonnet and standard O-ring type seating disc.
· Chemical & Corrosion Resistant PVC, PVC Clear, and CPVC Construction
· Improved Flow Characteristics Over Ball Checks, Outperforms Spring Loaded Designs
· Easy Access Cap for In-Line Clean Out & Servicing
· Optional True Union Design for Easy Valve Service Replacement
· Standard O-ring type EPDM or FKM Seat & Seals
· Sizes 1/2" – 2" Pressure Rated to 150 psi @ 73°F, Sizes 3" – 4" Pressure Rated to 90 psi @ 73°F
· Suitable for either Horizontal or Vertical Up-flow Installations
· Assembled with Silicone-Free, Water Soluble Lubricants
All these thermoplastic valves are manufactured to ASTM F 1970 and constructed from PVC, ASTM D 1784 Cell Classification 12454, or CPVC, ASTM D 1784 Cell Classification 23447.
MODEL | TYPE |
SIZE
(in)
|
ENDS | BODY MTL | SEAT | Cv |
WT
(lbs)
|
A
(in)
|
B
(in)
|
C
(in)
|
D
(in)
|
E
(in)
|
ITEM NO |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
YY-PS | Y ANGLE | 1/2 | SOCKET | PVC | EPDM | 6.7 | .33 | 3-5/32 | 1-19/32 | 3-11/32 | 2-19/32 | 1-5/8 | VCYY-PSPE0050 |
YY-PS | Y ANGLE | 3/4 | SOCKET | PVC | EPDM | 12.6 | .53 | 3-27/32 | 2 | 4 | 3-5/32 | 2 | VCYY-PSPE0050 |
YY-PS | Y ANGLE | 1 | SOCKET | PVC | EPDM | 22.9 | .9 | 4-1/2 | 2-15/32 | 4-23/32 | 3-5/8 | 2-1/14 | VCYY-PSPE0100 |
YY-PS | Y ANGLE | 1 1/4 | SOCKET | PVC | EPDM | 33.8 | 1.28 | 5-5/16 | 3 | 5-9/16 | 4-9/32 | 2-13/16 | VCYY-PSPE0125 |
YY-PS | Y ANGLE | 1 1/2 | SOCKET | PVC | EPDM | 50.7 | 1.76 | 6 | 3-19/32 | 6-5/16 | 4-7/8 | 3-5/32 | VCYY-PSPE0150 |
YY-PS | Y ANGLE | 2 | SOCKET | PVC | EPDM | 79.2 | 3.1 | 6-29/32 | 5 | 7-1/2 | 5-1/2 | 3-23/32 | VCYY-PSPE0200 |
YY-PS | Y ANGLE | 3 | SOCKET | PVC | EPDM | 235 | 5.64 | 9-21/32 | 6-9/16 | 10-11/32 | 7-9/16 | 5-1/4 | VCYY-PSPE0300 |
YY-PS | Y ANGLE | 4 | SOCKET | PVC | EPDM | 387 | 10.45 | 12-11/16 | 8-5/8 | 13-1/8 | 9-25/32 | 6-17/32 | VCYY-PSPE0400 |
YY-PT | Y ANGLE | 1/2 | THREAD | PVC | EPDM | 6.7 | .33 | 3-9/32 | 3-27/32 | 5-1/8 | 2-19/32 | 1-5/8 | YCYY-PTPE0050 |
YY-PT | Y ANGLE | 3/4 | THREAD | PVC | EPDM | 12.6 | .53 | 4 | 4-3/4 | 6 | 3-5/32 | 2 | YCYY-PTPE0075 |
YY-PT | Y ANGLE | 1 | THREAD | PVC | EPDM | 22.9 | .9 | 4-21/32 | 5-9/32 | 7 | 3-5/8 | 2-1/4 | YCYY-PTPE0100 |
YY-PT | Y ANGLE | 11/4 | THREAD | PVC | EPDM | 33.8 | 1.28 | 5-1/2 | 6-1/4 | 8 | 4-9/32 | 2-13/16 | YCYY-PTPE0125 |
YY-PT | Y ANGLE | 1.5 | THREAD | PVC | EPDM | 50.7 | 1.76 | 6-9/32 | 7-5/32 | 8-7/8 | 4-7/8 | 3-5/32 | YCYY-PTPE0150 |
YY-PT | YANGLE | 2 | THREAD | PVC | EPDM | 79.2 | 3.1 | 7-3/16 | 8-5/16 | 10-1/8 | 5-1/2 | 3-23/32 | YCYY-PTPE0200 |
YY-PT | Y ANGLE | 3 | THREAD | PVC | EPDM | 235 | 5.64 | 10 | 11-17/32 | 14-5/16 | 7-9/16 | 5-1/4 | YCYY-PTPE0300 |
YY-PT | Y ANGLE | 4 | THREAD | PVC | EPDM | 387 | 10.45 | 12-11/16 | 14-11/32 | 17-11/32 | 9-25/32 | 6-17/32 | YCYY-PTPE0400 |
YY-PF | Y ANGLE | 1/2 | FLANGED | PVC | EPDM | 6.7 | 0.85 | 4-11/32 | 5-23/32 | 3-1/2 | 2-19/32 | 1-5/8 | YCYY-PFPE0050 |
YY-PF | Y ANGLE | 3/4 | FLANGED | PVC | EPDM | 12.6 | 1.28 | 5-3/32 | 6-7/16 | 3-7/8 | 3-5/32 | 2 | YCYY-PFPE0075 |
YY-PF | Y ANGLE | 1 | FLANGED | PVC | EPDM | 22.9 | 1.81 | 5-3/4 | 7-5/32 | 4-1/4 | 3-5/8 | 2-1/4 | YCYY-PFPE0100 |
YY-PF | Y ANGLE | 1 1/4 | FLANGED | PVC | EPDM | 33.8 | 2.52 | 6-9/16 | 8-1/8 | 4-5/8 | 4-9/32 | 2-13/16 | YCYY-PFPE0125 |
YY-PF | Y ANGLE | 1.5 | FLANGED | PVC | EPDM | 50.7 | 3.25 | 7-3/8 | 9-5/32 | 5 | 4-7/8 | 3-5/32 | YCYY-PFPE0150 |
YY-PF | Y ANGLE | 2 | FLANGED | PVC | EPDM | 79.2 | 5.42 | 8-15/32 | 10-1/2 | 6 | 5-1/2 | 3-23/32 | YCYY-PFPE0200 |
YY-PF | Y ANGLE | 3 | FLANGED | PVC | EPDM | 235 | 10.07 | 11-5/16 | 12 | 7-1/2 | 7-9/16 | 5-1/4 | YCYY-PFPE0300 |
YY-PF | Y ANGLE | 4 | FLANGED | PVC | EPDM | 387 | 16.15 | 14-5/16 | 16 | 9-1/16 | 9-25/32 | 6-17/32 | YCYY-PFPE0400 |
YY-HS | Y ANGLE | 1/2 | SOCKET | CPVC | VITON | 6.7 | .33 | 3-5/32 | 1-19/32 | 3-11/32 | 2-19/32 | 1-5/8 | VCYY-HSSV0050 |
YY-HS | Y ANGLE | 3/4 | SOCKET | CPVC | VITON | 12.6 | .53 | 3-27/32 | 2 | 4 | 3-5/32 | 2 | VCYY-HSHV0075 |
YY-HS | Y ANGLE | 1 | SOCKET | CPVC | VITON | 22.9 | .9 | 4-1/2 | 2-15/32 | 4-23/32 | 3-5/8 | 2-1/4 | VCYY-HSHV0100 |
YY-HS | Y ANGLE | 1 1/4 | SOCKET | CPVC | VITON | 33.8 | 1.28 | 5-5/16 | 3 | 5-9/16 | 4-9/32 | 2-13/16 | VCYY-HSHV0125 |
YY-HS | Y ANGLE | 1.5 | SOCKET | CPVC | VITON | 50.7 | 1.76 | 6 | 3-19/32 | 6-5/16 | 4-7/8 | 3-5/32 | VCYY-HSHV0150 |
YY-HS | Y ANGLE | 2 | SOCKET | CPVC | VITON | 79.2 | 3.1 | 6-29/32 | 5 | 7-1/2 | 5-1/2 | 3-23/32 | VCYY-HSHV0200 |
YY-HS | Y ANGLE | 3 | SOCKET | CPVC | VITON | 235 | 5.64 | 9-21/32 | 6-9/16 | 10-11/32 | 7-9/16 | 5-1/4 | VCYY-HSHV0300 |
YY-HS | Y ANGLE | 4 | SOCKET | CPVC | VITON | 387 | 10.45 | 12-11/16 | 8-5/8 | 13-1/8 | 9-25/32 | 6-17/32 | VCYY-HSHV0400 |
YY-HT | Y ANGLE | 1/2 | THREAD | CPVC | VITON | 6.7 | .33 | 3-9/32 | 3-27/32 | 5-1/8 | 2-19/32 | 1-5/8 | VCYY-HTHV0050 |
YY-HT | Y ANGLE | 3/4 | THREAD | CPVC | VITON | 12.6 | .53 | 4 | 4-3/4 | 6 | 3-5/8 | 2 | VCYY-HTHV0075 |
YY-HT | Y ANGLE | 1 | THREAD | CPVC | VITON | 22.9 | .9 | 4-21/32 | 5-9/32 | 7 | 3-5/8 | 2-1/4 | VCYY-HTHV0100 |
YY-HT | Y ANGLE | 1 1/4 | THREAD | CPVC | VITON | 33.8 | 1.28 | 5-1/2 | 6-1/4 | 8 | 4-9/32 | 2-13/16 | VCYY-HTHV0125 |
YY-HT | Y ANGLE | 1.5 | THREAD | CPVC | VITON | 50.7 | 1.76 | 6-9/32 | 7-5/32 | 8-7/8 | 4-7/8 | 3-5/32 | VCYY-HTHV0150 |
YY-HT | Y ANGLE | 2 | THREAD | CPVC | VITON | 79.2 | 3.1 | 7-3/16 | 8-5/16 | 10-1/8 | 5-1/2 | 3-23/32 | VCYY-HTHV0200 |
YY-HT | Y ANGLE | 3 | THREAD | CPVC | VITON | 235 | 5.64 | 10 | 11-17/32 | 14-5/16 | 7-9/16 | 5-1/4 | VCYY-HTHV0300 |
YY-HT | Y ANGLE | 4 | THREAD | CPVC | VITON | 387 | 10.45 | 12-11/16 | 14-11/32 | 17-11/32 | 9-25/32 | 6-17/32 | VCYY-HTHV0400 |
YY-HF | Y ANGLE | 1/2 | FLANGED | CPVC | VITON | 6.7 | 0.85 | 4-11/32 | 5-23/32 | 3-1/2 | 2-19/32 | 1-5/8 | VCYY-HFHV0050 |
YY-HF | Y ANGLE | 3/4 | FLANGED | CPVC | VITON | 12.6 | 1.28 | 5-3/32 | 6-7/16 | 3-7/8 | 3-5/32 | 2 | VCYY-HFHV0075 |
YY-HF | Y ANGLE | 1 | FLANGED | CPVC | VITON | 22.9 | 1.81 | 5-3/4 | 7-5/32 | 4-1/4 | 3-5/8 | 2-1/4 | VCYY-HFHV0100 |
YY-HF | Y ANGLE | 1 1/4 | FLANGED | CPVC | VITON | 33.8 | 2.52 | 6-9/16 | 8-1/8 | 4-5/8 | 4-9/32 | 2-13/16 | VCYY-HFHV0125 |
YY-HF | Y ANGLE | 1.5 | FLANGED | CPVC | VITON | 50.7 | 3.25 | 7-3/8 | 9-5/32 | 5 | 4-7/8 | 3-5/32 | VCYY-HFHV0150 |
YY-HF | Y ANGLE | 2 | FLANGED | CPVC | VITON | 79.2 | 5.42 | 8-15/32 | 10-1/2 | 6 | 5-1/2 | 3-23/32 | VCYY-HFHV0200 |
YY-HF | Y ANGLE | 3 | FLANGED | CPVC | VITON | 235 | 10.07 | 11-5/16 | 12 | 7-1/2 | 7-9/16 | 5-1/4 | VCYY-HFHV0300 |
YY-HF | Y ANGLE | 4 | FLANGED | CPVC | VITON | 387 | 16.15 | 14-5/16 | 16 | 9-1/16 | 9-25/32 | 6-17/32 | VCYY-HFHV0400 |