Y-Ball Check Valve (45BY)
- 316L stainless steel product-contact surfaces
- PTFE ball with EPDM or FKM seat
- 150 PSI maximum operating pressure
- 15°F to 200°F operating range
- Field-serviceable two-piece construction
- 3-A certified
Y-Ball Sanitary Check Valve
Wayland 45BY Y-ball check valves provide sanitary, one-direction flow control with a serviceable two-piece body and PTFE ball. Clamp connections and selectable EPDM or FKM seats support hygienic process applications.
Features
- All metal product-contact surfaces are 316L stainless steel
- All wetted surfaces polished to a 32 Ra finish
- PTFE ball
- Two-piece construction
- Seal kits and replacement PTFE balls available
- EPDM or FKM seat options
- Field-serviceable design requiring no special tools
- Maximum operating pressure of 150 PSI
- Operating temperature range of 15°F to 200°F
- 3-A certified (58-02), authorization 3773
Dimensions
| Valve size | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| 1-1/2" | 7.5 | 1.37 | 1.5 | 3.3 | 1.9 | 2.5 |
| 2" | 8.5 | 1.87 | 2.0 | 3.9 | 2.3 | 3.0 |
| 2-1/2" | 10 | 2.37 | 2.5 | 4.5 | 2.9 | 3.6 |
| 3" | 11.5 | 2.87 | 3.0 | 5.3 | 3.8 | 4.7 |
Exploded View & Parts Identification
| Item | Description | Material | Qty. |
|---|---|---|---|
| 1 | Angle Body | 316L | 1 |
| 2 | Inlet Body | 316L | 1 |
| 3 | Single Pin Clamp | CF8 | 2 |
| 4 | End Cap | 316L | 1 |
| 5 | Cap Gasket | EPDM / FKM | 1 |
| 6 | Ball | PTFE | 1 |
| 7 | Seat | EPDM or FKM / 316L | 1 |
Specifications by Size
| Valve size | Weight (lb.) | Cap size (in.) | Clamp size (in.) | Cap gasket size (in.) | Ball diameter (in.) |
|---|---|---|---|---|---|
| 1-1/2" | 4.9 | 2.0 | 2.0 | 2.0 | 1.6 |
| 2" | 6.6 | 2.5 | 2.5 | 2.5 | 2.1 |
| 2-1/2" | 10.5 | 3.0 | 3.0 | 3.0 | 2.7 |
| 3" | 17.5 | 4.0 | 4.0 | 4.0 | 3.6 |
| Valve size | Cracking pressure (in. H₂O) | Seating pressure (PSI) | Flow coefficient (Cv) | ||
|---|---|---|---|---|---|
| Vertical | Horizontal | Vertical | Horizontal | ||
| 1-1/2" | 2.0 | 0.5 | 3.6 | 3.9 | 60 |
| 2" | 2.5 | 0.5 | 2.6 | 3.7 | 80 |
| 2-1/2" | 3.0 | 0.5 | 1.6 | 2.4 | 100 |
| 3" | 3.8 | 0.5 | 1.9 | 2.6 | 140 |
Valve Configurations
| Valve size | EPDM | FKM |
|---|---|---|
| 1-1/2" | W645BY-E-15 | W645BY-V-15 |
| 2" | W645BY-E-2 | W645BY-V-2 |
| 2-1/2" | W645BY-E-25 | W645BY-V-25 |
| 3" | W645BY-E-3 | W645BY-V-3 |
Replacement Parts
| Valve size | EPDM seal kit | FKM seal kit | PTFE replacement ball |
|---|---|---|---|
| 1-1/2" | W45BY-ST-E-15 | W45BY-ST-V-15 | W45BY-B-15 |
| 2" | W45BY-ST-E-2 | W45BY-ST-V-2 | W45BY-B-2 |
| 2-1/2" | W45BY-ST-E-25 | W45BY-ST-V-25 | W45BY-B-25 |
| 3" | W45BY-ST-E-3 | W45BY-ST-V-3 | W45BY-B-3 |
Each seal kit includes one cap gasket and one seat (EPDM/FKM/CF8M, as applicable).
Air Blow Check Valve Sizing
When using an air blow check valve with a Y-ball check valve, use the size pairing below.
| Y-ball check valve size | Air blow check valve size |
|---|---|
| 1-1/2" | 2" |
| 2" | 2-1/2" |
| 2-1/2" | 3" |
| 3" | 4" |
Product Support & Distributor Inquiries
Review the listed connection, size and operating specifications when selecting a check valve. Explore Y-Ball Check Valve and the sanitary valve range, or contact Wayland for help identifying product documentation.
