Ningdian can make the moulds according to your samples, drawing and photoes to desigh the 316 stainless steel valve,brass or Carbon Steel cock valves.
The Ningdian® valve can be disign with a 0.090” Bleed Hole Controlled by a 1/4”-20 UNF-2A Bleed Screw, FKM O-ring Seal and PTFE Back-up Ring Below the Stem Threads to Protect from Corrosion and Galling; Soft Seat Comes Standard with Delrin Seat.
PTFE or Grafoil Packing Optional, All valve Stems made in China are 316SS, Zinc-nickel Plated Carbon Steel or brass material, Vinyl Dust Cap for Bonnet & Stem (Non-packing), Rolled Threads for Strength, Durability, and Ease of Use, All Ningdian® Valves are Helium Leak Tested for Pressure Rating: Hard Seat – 10,000 psi at 200°F, Soft Seat – 6,000 psi at 200°F.
Temperature Rating: Standard up to 200°F; Available up to 1,000°F.
Hard Seat CV: 0.44,
Soft Seat CV: 0.76,
Connections: 3/8”,1/4” or 1/2”; BSP, NPT or G thread