Underground Fully Welded Ball Valve, 2-48 Inch, 150-2500 LB

Explore the reliability of our Underground Fully Welded Ball Valves. As a reputable producer, we adhere to industry-leading standards, including ASME B16.34, DIN 3357, API 6D, and BS 5351. Available in sizes ranging from 2 to 48 inches, with Class ratings spanning 150 to 2500 LB, these valves are engineered with an Anti-Blow-Out Stem and Anti-Static Function, ensuring robust performance and safety in underground applications.

Fullly Welded Heating ball valve
 
The complete valve body and weld ends are welded together. There are no potentially leaking flanged or bolted connections on the valve body. The blowout-proof stem is externally sealed with two O-ring seals and a graphite reinforced PTFE washer pressed on by the media pressure. System safety is ensured by the possibility of replacing the upper O-ring seal up to DN 50 and 2 O-ring seals DN65 and bigger, 3 O-ring for DN350 and bigger.
 
We manufactures the ball valves below,
Fully Welded End Ball Valve
District hot water welded ball valve
One-piece ball valve with thread, reduced bore, full port
One-piece ball valve with thread and weld end, reduced port, full bore
One-piece ball valve with weld ends, reduced port, full port
One-piece ball valve with flange, reduced bore, full bore
One-piece ball valves with extended spindle, reduced port, full port
One-piece ball valve with flange, reduced bore, full bore


SIZE RANGE AND PRESSURE CLASS
 
Size from 2 Inch to 56 Inch (DN50-DN1400)
Pressure from 150 LBS to 2500 LBS (PN16-PN420)


DESIGN STANDARDS
 
Design / Manufacture as per the standards: MFG, API 6D, ASME B16.34, DIN 3357, EN 13709, GB/T 12237, BS 5351
Face to Face Length (Dimension) as per the standards: API 6D, ASME B16.10, EN 558-1 DIN3202, JIS B2002, MFG
Flanged Dimension according to the standards: ASME B16.5, EN 1092-1, BS 4504, DIN 2501,
Flanged to ASME B16.5 (2 - 24 Inch) and ASME B16.47 Series A / B (26 Inch and above) Clamp / Hub ends on request.
Testing according to the standards: API 598, API 6D, EN 12266-1, EN 1074-1, ISO 5208


TECHNICAL FEATURES
 
Fully welded body
Floating or Trunnion Mounted Ball
Spring energized seats
PTFE+C soft seated
Full or reduced bore
Flanged or welded ends
blowout proof stem
Self-lubricated bearings
Self-relieving Seat
Bi-directional Seating
 

CONSTRUCTION MATERIALS
 
Carbon Steel:
ASTM A105, Steel 20 Inch, Din ST-37.0, ST-37.8, P235GH (EN 1.0345), P355NL1 (EN 1.0566) / GP240GH (EN 1.0619)
 
Stainless Steel:
SS304, SS316, SS420, X5CrNi18-10 (EN 1.4301)