Quick answer
How do you shortlist ball, butterfly and gate valves?
Ball, butterfly and gate valves should be shortlisted by service duty, not by nominal size alone. Compare shutoff needs, installation space and isolation requirements, then confirm the offered model's materials, pressure-temperature limits, end connections and tests. A valve-family name is not a service rating.
Updated: — Added a duty-based quick answer and linked company attribution; product specifications and purchasing links unchanged.
| Valve family | Selection starting point | Confirm before ordering |
|---|---|---|
| Ball valve | Compact shutoff; compare floating, trunnion and other arrangements for the duty. | Seats, material compatibility, pressure-temperature limits, cavity relief, actuation and required tests. |
| Butterfly valve | Installation space and weight; compare wafer, lug and flanged connections. | Mating flanges, disc clearance, seat construction, shutoff direction and model-specific limits; written approval if end-of-line use is required. |
| Gate valve | Open-or-closed line isolation; review stem and bonnet arrangements. | Body materials, bonnet design, end connection, dimensions, tests and operating cycle. |
Ball valves for compact shutoff decisions
Ball valve selection usually starts with the required shutoff, pressure class, temperature and material compatibility. Floating, trunnion, top-entry and extended-stem arrangements serve different project constraints.
Seat material, fire-safe requirements, cavity relief and actuation should be confirmed against the service rather than assumed from the family name.
Butterfly valves when space and weight matter
Wafer, lug, flanged and triple-offset designs can address different installation and temperature requirements. The connection, disc material, seat construction and allowable operating range need to be reviewed together.
For high-temperature or demanding shutoff duties, confirm whether a metal seat and the relevant project test standard are required.
Gate valves for line isolation
Gate valves are commonly reviewed for open-or-closed isolation where low pressure drop in the fully open position is important. Rising-stem, non-rising-stem, pressure-seal and cryogenic configurations change the project fit.
Do not select by nominal size alone. Confirm the standard, body material, bonnet design, end connection, testing and operating cycle.
Compare valve families
Use this guide together with the relevant valve family and project operating data.
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