The Neway Forged Steel Gate Valve serves as an isolation valve for small diameters NPS 1/2"–2" / DN15–DN50, with pressure ratings ASME Class 150–4500 / PN16–PN760. It is used fully open or fully closed; not suitable for throttling due to wear on the wedge and seats.
The series includes configurations per API 602 for Class 800 and Class 900/1500, while Class 2500 refers to ASME B16.34. Ends can be SW, NPT, BW, RF, or RTJ, per piping specification.
Available body materials include A105N, A350 LF2, A182 F11/F22/F5, F304/F316/F304L/F316L. Trims are available with 13Cr, 18Cr-8Ni, 18Cr-8Ni-Mo, or hard-faced surfaces, depending on temperature, corrosion, and erosion.
Versions include bolted bonnet, welded bonnet, RTJ bonnet, and pressure seal bonnet. For Class 900/1500, pressure seal options are noted, while Class 2500 offers welded or pressure seal configurations. Actuation can be manual, electric, pneumatic, or hydraulic.
Suitable for steam, condensates, thermal oil, compressed air, gases, hydrocarbons, and small diameter chemical fluids, provided body material, trim, gasket, packing, and pressure-temperature rating are confirmed.
SW or NPT?
SW for higher mechanical integrity in pressure/thermal cycles. NPT for removable auxiliary lines.
When to choose full port?
When lower pressure drop or piggable/cleaner bore is required.
What to check for stem leakage?
Condition of graphite packing, gland tightening, and stem wear.
Size: NPS 1/2"~2"(DN15~DN50）
Pressure Rating: ASME CLASS 150~4500(PN16~PN760）
Body material：Carbon steel, Low-temperature steel, Stainless steel, Alloy steel, Duplex stainless steel, Nickel base, Titanium alloy steel etc.
End connection：RF, BW, RTJ, SW, NPT etc.
Operation：Manual, Pneumatic, Electric, Hydraulic etc.
