API 609
Soft-seated butterfly valve
Compare soft-seated butterfly valves for water and utility duty. Specify fluid compatibility, seat and seal materials, flange details and operating conditions.

Butterfly Valves
Soft-seated butterfly valve
The resilient seat is a wetted sealing component, not merely a body-material option. Specify its exact grade and fluid exposure. Connection style and offset geometry must still be identified on the offered model.
About the soft-seated butterfly valve manufacturerThese are family-level options. Confirm the offered series rating and materials against its approved datasheet.
SERIES SELECTION
How do you specify a soft-seated butterfly valve?
Select the resilient seat for the stated fluid composition, solids, temperature and pressure conditions, not the soft-seated butterfly valve name alone. Confirm the proposed seat and seal materials and their service limits with the supplier. Check the actual connection, disc clearance, shutoff direction and agreed leakage acceptance on the offered model.
Related procurement checks: Choose the required butterfly connection.
Compare construction choices in this valve family- State chemical composition, concentration, solids and temperature.
- Confirm the exact seat/seal grade and its pressure-temperature limits.
- Review flange assembly, disc clearance and sealing direction for the quoted model.
Product-family buyer guides
Use these guides to compare valve families, review materials and prepare an RFQ. Confirm the offered model's ratings and service suitability against its approved datasheet.
- Double vs Triple Offset Butterfly Valves: Differences & Selection
Compare double and triple offset butterfly valves by geometry, seat construction, operating duty and test requirements. Includes a practical procurement checklist.
- Wafer vs Lug vs Flanged Butterfly Valves: Selection Guide
Compare butterfly valve connections, flange dimensions, end-of-line limits and pressure-temperature requirements. Use the RFQ checklist to review the offered model.
- Ball, butterfly or gate valve: start with the duty
Compare ball, butterfly and gate valves with a duty-based selection table, model-specific purchasing checks and links to KEHUA product series and technical guides.
- Industrial valve materials: WCB, LCB, CF8M and duplex steel
Compare WCB, LCB, CF8M and duplex valve bodies with a material selection table and RFQ checklist covering fluid, temperature, corrosion and material records.
- How to prepare an industrial valve RFQ that can be reviewed quickly
Prepare an industrial valve RFQ with a copyable fill-in checklist, quotation deviation table and checks for service data, materials, connections, actuation and documents.
Request a Quote
Request a soft-seated butterfly valve quotation
Pipeline isolation, water, chemical and utility service
Butterfly Valves


