sales@lokvalve.com
3PC Duplex Stainless Steel Ball Valve Product Information
3pc duplex stainless steel ball valve is one type of three pieces ball valve of class 800LB, 1500LB and 2500LB with butt-welded ends, socket welded ends and NPT threaded ends. Duplex stainless steel valve is used normally in the strong corrosive condition, such as sea water, offshore, marine, strong acid solutions and strong alkaline solutions. Our 3pcs duplex ss ball valve is available with materials of duplex stainless steel, A182 F51, 2205, 2507. Flowspec Luokai can manufacture the 3pc duplex stainless steel ball valve according to the standard of ASME B16.34, BS5351 and MSS-SP-118 with sizes of 1/2”~2” (DN15~DN50mm). Contact us today. Get the better prices. 30 years of experience. Great after-sales service.
1. FEATURES
- Full port or reduced port
- Three pieces structure
- High pressure
- Fire safe is available
- Blow-proof stem design
- High quality packing material
- Bi-directional seal
3. STANDARDS
- Design & manufacturing: ASME B16.34
- Face to face: manufacturer’s
- Socket welded: ASME B16.11
- Threaded ends: NPT ASME 1.20.1
- Butt-welded: ASME B16.25
- Inspection & testing: API598
- Fire safe: API607
- Special NACE MR-01-75
2. TECHNICAL SPECIFICATIONS
- 800LB~2500LB
- Size: 1/2”~2” (DN15~DN50mm)
- Materials: duplex stainless steel, A182 F51, 2205, 2507
- Applicable medium: sea water, offshore, oil, gas, steam, strong corrosive mediums
- Applicable temperature: -29℃~+425℃(higher temperature and lower temperature are available)
- Special: sour service conditions
4. APPLICATIONS
- Petroleum industry
- Oil & gas
- Power plant
- Chemical industry
- Desalination
- Water treatment
- Steel plant
- Metallurgical plant
- Offshore & marine
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle