Quadax Buttweld
SubCategory: ButterflyValves
Manufacturer: Quadax
Industry:
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Product features
- 4-offset sealing geometry → Reduces sealing-surface interference during operation and supports reliable shut-off in demanding duties
- Pressure classes up to PN 10–160 / ANSI 150–1500 → Extends selection across high-pressure process and utility applications
- Nominal sizes DN 80–1800 mm / 3–72 in → Covers both compact process lines and large-diameter pipeline duties
- Published temperature range from −270 °C to +800 °C → Supports cryogenic and high-temperature applications with suitable materials
- Welded ends → Matches the series to its intended piping and installation concept
- Metal-seated valve concept → Supports duties where elastomeric seat materials may not suit the process temperature
- Bi-directional shut-off capability in the Quadax platform → Gives designers flexibility when defining flow and isolation strategy
- Multiple body and trim material options → Supports duty-specific selection for demanding media and temperature conditions
- Actuation can be matched to the application → Supports automated isolation and defined fail-position requirements
- Service and selection support from AxFlow → Helps align valve, actuator and materials with the actual operating duty
Quadax Buttweld is intended for demanding isolation duties in industries such as chemicals and petrochemicals, cryogenic service, oil and gas, hydrogen, power generation, district heating and industrial gases. The series is relevant where reliable shut-off must be maintained across wide temperature and pressure ranges and where valve selection is critical to process continuity.
The valve uses Quadax's 4-offset geometry, which separates the sealing surfaces during opening and closing and supports controlled metal-seated shut-off under demanding process conditions. The buttweld body removes flange joints from the valve connection, making it particularly relevant for long-distance pipelines and applications where unnoticed external leakage at bolted joints is a concern.
Current Quadax data specifies a 4-offset design, a pressure range of PN 10–160 / ANSI 150–1500, nominal sizes of DN 80–1800 mm / 3–72 in, and welded ends. The published temperature range extends from −270 °C to +800 °C with suitable configuration and materials. These are series limits and the permissible combination for a specific valve depends on size, materials, pressure class, actuator and process conditions.
For maintenance and lifecycle planning, the welded-end configuration trades easy valve-body removal for fewer external pipe joints. Correct actuator sizing, material selection and planned service access are therefore important at the specification stage. AxFlow can support valve selection, actuator matching and service planning for the actual medium, pressure and temperature duty.
