Views: 0 Author: Site Editor Publish Time: 07-10-2026 Origin: Site
Tianjin Worlds Valve Co., Ltd. presents a U-type butterfly valve featuring an LCB low-temperature carbon steel body, a CF8 stainless steel disc, an SS410 stem, and an EPDM seat–available in sizes from DN50 to DN2000. This valve is engineered for reliable on/off and throttling control in low-temperature and cryogenic applications, including propane, liquid ammonia, ethylene, and other chilled fluid services, as well as general industrial systems where corrosion resistance and dependable sealing are required.
Product Name: U-Section Butterfly Valve
Body Material: LCB, WCB, Ductile Iron, CF8, CF8M, Aluminum Bronze...optional
Disc Material: Stainless Steel (CF8)
Seat Material: EPDM, NBR, FKM(VITON), PTFE...(Seat material options vary depending on the media or customer preference.)
Connection Type: Flange
Size Range: DN50–DN2000
Pressure Rating:
PN10 / PN16 / PN25/ JIS 5K/10K / 150LB...
Top Flange: Available in ISO 5211 standard for direct actuator mounting
Operating Temperature Range: -20℃ to 120℃ (EPDM)
Customization: All materials, dimensions, and pressure ratings can be modified according to customer requirements
1. LCB Low-Temperature Carbon Steel Body – Reliable Cold Service Performance
LCB (ASTM A352 Grade LCB) is impact-tested at -46°C and offers an operating range of -46°C to +343°C.
Industry-standard material for low-temperature and cryogenic valve applications.
Suitable for propane, liquid ammonia, ethylene, and other chilled fluid services.
2. U-Type Body Design – Superior Sealing Performance
Specially contoured "U"-shaped seat or sealing surface enables tighter sealing when closed.
Provides automatic centering function for precise disc-to-seat alignment.
Ideal for applications requiring a high degree of sealing performance.
3. CF8 Stainless Steel Disc – Corrosion Resistant & Cost-Effective
CF8 (AISI 304) offers good corrosion resistance for water and mild chemicals.
Smooth surface finish minimizes flow resistance and prevents media buildup.
Upgrade to CF8M (316) available for seawater or high-chloride environments.
4. SS410 Stem – Strong & Wear-Resistant
SS410 (AISI 410) stainless steel offers good strength and wear resistance.
Provides reliable torque transmission for long-term operation.
5. EPDM Seat – Bubble-Tight Sealing for Water Service
Zero leakage (Class VI) sealing for water, treated water, and mild chemicals.
Excellent resistance to water, steam, ozone, and aging.
Temperature range: -20°C to +120°C.
Upgrade options: NBR (oil/fuel), Viton (aggressive chemicals/high temperature), PTFE (high-purity/wide temperature).
6. Wide Size Range – DN50 to DN2000
Covers everything from small branch lines to large-diameter water mains.
Ideal for low-temperature industrial systems, water treatment, and general service.
7. Fully Customizable OEM/ODM Solution
Body materials: LCB (standard), WCB, LCC, CF8, CF8M.
Disc materials: CF8 (standard), CF8M, duplex, super duplex, aluminum bronze.
Seat materials: EPDM (standard), NBR, Viton(FKM), PTFE.
Stem materials: SS410 (standard), SS304, SS316, SS431.
Pressure ratings: PN10, PN16, PN25, Class 150, Class 300.
Flange standards: EN 1092, ANSI B16.5, AS2129, JIS.
Operation: Manual lever, worm gear, electric actuator, pneumatic actuator.
Certifications: ISO 9001, CE, UKCA, WRAS, ACS available upon request.
1. Direct OEM/ODM Manufacturer – We produce in our own ISO 9001 certified factory, not a trading company. Every U-type butterfly valve is manufactured to your exact specifications.
2. Low-Temperature Expertise – Our LCB bodied valves are engineered for reliable performance in low-temperature and cryogenic applications down to -46°C.
3. Wide Size Range – From DN50 to DN2000, covering small branch lines to large-diameter industrial systems.
4. Material Flexibility – Body, disc, stem, and seat materials are fully customizable to match your specific media and temperature requirements.
5. Certified Quality – ISO 9001 certified with CE, UKCA, WRAS, and ACS certifications available upon request.
6. Full Documentation – Material certificates (mill test reports) and pressure test reports provided with every order.
7. Global Export Experience – Supplying valves to over 50 countries with reliable logistics and technical support.
We invite you to contact us for a competitive quotation or to arrange a visit to our factory. Our engineering team is ready to discuss your specific size, material, pressure, and temperature requirements – whether you need a standard DN150 U-type butterfly valve or a fully customized solution up to DN2000 with special materials or actuation.
