HX Butt-Weld Butterfly Valve With Gear Operator (BFVHXBW-GO)


HX Butt-Weld Butterfly Valve With Gear Operator (BFVHXBW-GO)



  • HX Series butt-weld sanitary butterfly valve with manual hand-wheel gear operator
  • 150 PSI pressure rating based on water at 68°F / 20°C
  • Field serviceable without special tools
  • 316L forged stainless steel body and disc with wetted surfaces of 25 Ra or better
  • FDA-approved EPDM, silicone and FKM seats in available sizes from 1" through 4"


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HX Series Manual Butterfly Valve

Wayland BFVHXBW-GO is a field-serviceable HX Series sanitary butterfly valve with butt-weld process ends and a manual hand-wheel gear operator. The forged stainless-steel body and disc are available in 304 or 316L, with FDA-approved EPDM, silicone or FKM seats.


Manual Valve Features

  • Field serviceable; no special tools required
  • Vacuum rating: 0.2 inches Hg at 68°F
  • Low resistance to flow and bi-directional operation
  • Wetted surfaces are 25 Ra or better
  • Flush bolting on 1/2-inch through 4-inch sizes supports a positive seal without over-compression
  • Separate bolt holes allow quick actuator mounting without removing body bolts
  • Opposing body-bolt design resists loosening from vibration or cycling
  • Double-D stem on 1/2-inch through 3-inch sizes; square stem profile on 4-inch and 6-inch sizes
  • Thicker disc and stem for maximum-pressure applications

butt-weld Dimensions

HX Series butt-weld valve dimensional line drawing

Butt-Weld-end dimensions (inches)
Size A B C L L1 L2 L3 H1 H2 H3 W
1/2″ 0.37 0.50 0.71 2.68 6.26 6.26 5.71 3.30 3.30 3.20 3.11
3/4″ 0.62 0.75 0.71 2.68 6.26 6.26 5.71 3.30 3.30 3.20 3.11
1″ 0.87 1.00 0.71 2.68 6.26 6.26 5.71 3.30 3.30 3.20 3.11
1-1/2″ 1.37 1.50 0.71 3.00 6.26 6.26 5.71 3.42 3.42 3.31 3.35
2″ 1.87 2.00 0.71 3.14 6.26 6.26 5.71 3.81 3.81 3.71 4.13
2-1/2″ 2.37 2.50 0.71 3.14 6.26 6.26 5.71 3.95 3.95 3.85 4.41
3″ 2.87 3.00 0.71 3.22 6.26 6.26 5.71 4.21 4.21 4.10 4.92
4″ 3.83 4.00 0.83 3.46 6.26 6.26 6.89 4.84 4.84 4.73 6.18
6″ 5.78 6.00 1.18 3.14 6.26 6.26 8.37 6.02 6.02 6.33 8.52

Shared Disc and Stem Dimensions

HX Series butterfly-valve disc and stem dimensional drawing

Shared disc and stem dimensions (inches)
Valve size K ØA ØB C ØD
1/2″ 0.31 0.89 0.46 0.85 0.46
3/4″ 0.31 0.89 0.46 0.85 0.46
1″ 0.31 0.89 0.46 0.85 0.46
1-1/2″ 0.31 1.42 0.46 0.85 0.46
2″ 0.31 1.97 0.46 0.85 0.46
2-1/2″ 0.31 2.36 0.46 0.85 0.46
3″ 0.31 2.78 0.46 0.85 0.46
4″ 0.47 3.92 0.63 0.83 0.63
6″ 0.63 5.74 0.76 0.85 0.76

Valve Torque, Pressure and Flow

HX Series valve specifications; water at 68°F / 20°C
Size Torque (in. lb.)* Pressure (PSI) Flow coefficient (Cv) Valve weight (lb.)**
1/2″ 90 150 1.77 1.74
3/4″ 90 150 1.77 1.72
1″ 90 150 2.73 2.33
1-1/2″ 90 150 2.19 1.94
2″ 120 150 3.73 3.24
2-1/2″ 140 150 4.28 3.54
3″ 180 150 5.39 4.49
4″ 270 150 7.58 6.54
6″ 620 150 15.26 18.52

* Torque values are based on FKM seats; EPDM and silicone torque values are lower. **Valve weight without handles.


Operating Pressure and Temperature

The HX Series pressure-temperature chart shows the published operating envelope by seat material and valve size.

HX Series butterfly valve operating pressure and temperature chart


Seat Temperature Ratings

Seat material Operating temperature Maximum short-duration sterilization temperature
EPDM 15°F to 212°F (-10°C to 100°C) 266°F (130°C)
FKM 15°F to 212°F (-10°C to 100°C) 266°F (130°C)
Silicone 15°F to 212°F (-10°C to 100°C) 284°F (140°C)

Replacement Seat Part Numbers

HX Series replacement seat part numbers
Valve size EPDM (black) Silicone (red) FKM (brown)
1/2″ WBFVHX-ST-E-.50 WBFVHX-ST-S-.50 WBFVHX-ST-V-.50
3/4″ WBFVHX-ST-E-.75 WBFVHX-ST-S-.75 WBFVHX-ST-V-.75
1″ WBFVHX-ST-E-1 WBFVHX-ST-S-1 WBFVHX-ST-V-1
1-1/2″ WBFVHX-ST-E-15 WBFVHX-ST-S-15 WBFVHX-ST-V-15
2″ WBFVHX-ST-E-2 WBFVHX-ST-S-2 WBFVHX-ST-V-2
2-1/2″ WBFVHX-ST-E-25 WBFVHX-ST-S-25 WBFVHX-ST-V-25
3″ WBFVHX-ST-E-3 WBFVHX-ST-S-3 WBFVHX-ST-V-3
4″ WBFVHX-ST-E-4 WBFVHX-ST-S-4 WBFVHX-ST-V-4
6″ WBFVHX-ST-E-6 WBFVHX-ST-S-6 WBFVHX-ST-V-6

Installation and Operating Manuals


Product Support & Distributor Inquiries

Compare connection type, size, seat material and operator when planning your valve assembly. Explore HX High-Performance Butterfly Valves and the sanitary valve range, or contact Wayland for help identifying product documentation.

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