API602 FORGED STEEL VALVE PISTON CHECK VALVE BW SW ENDS 800# A105 LF2 F22 F51

• API602 FORGED STEEL VALVE PISTON CHECK VALVE BW SW ENDS 800# A105 LF2 F22 F51

• Socket-weld and Threaded 3000#, 6000# and 9000# Tees, Reducing Tees, 90-degree Elbows, 45-degree Elbows, Couplings, Reducers, Inserts, etc.
• 150#, 300#, 600#, 900#, 1500#, 2500# WN flanges, Long WN flanges, HB Nozzles, SW flanges, NPT flanges, Slip-on flanges, etc. per B16.5 and B16.47
• Weldolets, Sockolets, Threadolets, Latrolets, Elbowlets

We also supply FORGED VALVES with bodies and bonnets/covers per ASTM/ASME A105 / SA105in a variety of nominal diameters, pressure classes, trims, end connections, and designs:

• 800#, 1500#
• Full-port and Conventional-port Gate Valves
• Bolted Bonnet, Welded Bonnet, and Pressure Seal Bonnet
• Bolted Cover, Welded Cover, and Pressure Seal Cover
• Globe Valves
• Piston Check Valves
• API 602
• API Trim 5, 8, 11, 12, 13
• Trim Changes
• Modifications to Weld-in Nipples

• Technical parameters and characteristics:

  Product type	Switch valve
  Product description	Small forging steel stop valve
  Model	J11H-stop valve
  Nominal diameter	NPS 1/4”～2”(DN8～DN50)
  Operating temperature	-29℃～595℃(the range of service temperature may vary for different materials)
  Nominal pressure	CLASS 150～2500 (PN 20～PN420)
  Material	Main material: A105,A350 LF2,A182 F11,A182 F22,A182 F304,A182 F316,A182 F51,B150 C61900,B564 N04400,B546 N06625, etc.
  Design standard	ISO 15761,API 602,BS 5352,ASME B16.34
  Structural length	Company standard,ASME B16.10(flange type)
  Connecting end	ASME B16.5,ASME B16.25,ASME B16.11
  Test standard	API 598
  Operation method	Hand wheel, motor drive unit, pneumatic drive unit
  Application fields	For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc.
  Other remarks 1	The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve.
  Other remarks 2	The friction between sealing faces is smaller during opening and closing, facilitating a longer service life.
  Other remarks 3	The valve clack is of taper, needle, ball and parabola types, and can be used to adjust the flow rate.
  Other remarks 4	SS+ graphite or metallic seal is adopted between valve body and bonnet for reliable sealing.
  Other remarks 5	Rising stem structure, making the valve switch position be clear at a glance
  Other remarks 6	The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced.
  Other remarks 7	A certain clearance is provided between valve clack and valve stem. You may adjust it by yourself. The sealing is reliable.
  Other remarks 8	Short stroke is suitable for application at positions subject to frequent opening.
  Other remarks 9
  Other remarks 10