Actuated HX Clamp Butterfly Valve


Actuated HX Clamp Butterfly Valve



  • HX Series clamp-end sanitary butterfly valve with selectable vertical canister actuation: dual acting, normally closed or normally open
  • T304 stainless steel actuator with 72-102 PSI air-supply range
  • Field serviceable with wetted surfaces of 25 Ra or better
  • 304 or 316L forged stainless steel valve body and disc options according to the listed configuration
  • FDA-approved EPDM, silicone and FKM seats
  • 1/8" FNPT air ports for 1/4" air hose


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SKU: BFVHXTC-DA Categories: , ,






HX Series Actuated Butterfly Valve

This HX Series sanitary butterfly valve with Tri-Clamp process ends is available with dual-acting, spring-return normally closed, or spring-return normally open actuation. The valve body is available in 304 or 316L stainless steel with FDA-approved EPDM, silicone or FKM seats.


Actuator Features

  • T304 stainless-steel actuator; valve body available in T304 or T316L
  • Field serviceable with wetted surfaces of 25 Ra or better
  • Air supply pressure: 72-102 PSI
  • Air fitting ports: 1/8-inch FNPT tap; air hose: 1/4 inch
  • Actuator-only weight: 7.72 lb for 1/2-inch through 3-inch valves; 15.43 lb for 4-inch valves
  • Select from the available valve sizes above
  • Choose dual-acting, spring-return normally closed, or spring-return normally open actuation

Tri-Clamp Actuator Dimensions

HX Series butterfly valve with vertical canister actuator dimensional drawing

Clamp-end dimensions (inches)
Size A B C L L1 L2 H
1/2″ 0.37 0.50 0.99 2.68 2.68 1.22 9.00
3/4″ 0.62 0.75 0.99 2.68 2.68 1.22 9.00
1″ 0.87 1.00 1.99 2.60 2.68 1.22 9.00
1-1/2″ 1.37 1.50 1.99 2.60 3.00 1.22 9.12
2″ 1.87 2.00 2.52 2.76 3.14 1.22 9.51
2-1/2″ 2.37 2.50 3.05 2.76 3.14 1.22 9.65
3″ 2.87 3.00 3.58 3.00 3.22 1.22 9.91
4″ 3.83 4.00 4.69 3.00 3.46 1.22 15.49

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


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

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)

Actuator Accessories

Vertical canister actuator and proximity sensor references
Valve size Spring return Double acting Proximity sensor kit
1/2″-3″ VC3-SR VC3-DA PROXVC3
4″ VC101-SR VC101-DA PROXV101

Proximity sensor kit includes one proximity sensor, one indicator, two serrated washers and two mounting nuts. Operating voltage: 12-30 VDC. Confirm accessory compatibility before ordering.

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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