Series-HBV

Supported Applications

The Dwyer Series HBV is a Hastelloy® C ball valve designed for automation requirements where direct mounting of pneumatic and electric actuators is required via an ISO 5211 mounting pad. The series incorporates a high-cycle, live-loaded stem packing system to support demanding process performance.

Documented service applications include gases, steam, and liquids compatible with the valve's wetted materials.

Operating Conditions & Performance

The Series HBV operates within a temperature range of -20 to 425°F (-29 to 218°C). The pressure rating is listed as 2000 psi (137.9 bar) and ASME B16.34 Class 900, with specific limits varying by temperature according to the Pressure/Temperature Chart for TFM seats.

Flow capacity varies by size model:

• HBV-M01 (1/4"): CV of 6
• HBV-M02 (3/8"): CV of 8
• HBV-M03 (1/2"): CV of 12
• HBV-M04 (3/4"): CV of 32
• HBV-M05 (1"): CV of 46
• HBV-M06 (1-1/4"): CV of 82
• HBV-M07 (1-1/2"): CV of 120
• HBV-M08 (2"): CV of 400

The valves are bi-directional and can be installed with flow in either direction.

Configuration Options

The series is offered in eight sizes ranging from 1/4 to 2 inches, identified by model numbers HBV-M01 through HBV-M08. All models feature Female NPT end connections and an ISO 5211 mounting pad.

Materials of Construction

Wetted Materials:

• Valve body, end caps, ball, and stem: ASTM 494 Type CW12MW (Hastelloy® C)
• Seat, body seal, and stem packing: TFM

Other Materials:

• Body bolt, gland washer, stem nut, space washer, and handle: 304 SS
• Handle cover: Vinyl

Key Product Differences

The primary variation across the series is size (1/4" to 2") which dictates flow coefficient (CV) and overall dimensions. The manual specifies that Series HBV valves are non-repairable; maintenance consists of occasional tightening of the packing gland nut if leakage occurs through the stem orifice.

Installation requires cleaning pipe ends to prevent debris damage, using a PTFE-based thread sealant on pipe threads, and utilizing a smooth wrench on the hex portion of the valve rather than the body. The handle is rotated 90 degrees counterclockwise to open and 90 degrees clockwise to close.