According To API 609 standard.

• Size: 2” ~ 72” (DN50-DN1800)
• Pressure Rating: 85 ~ 232 Psi（PN6 ~ PN16）
• Body Material: Ductile Iron, Carbon Steel, Stainless Steel, Copper
• End connection: Wafer, Lug, RF
• Operation: Lever, Gear,Pneumatic,Electric, Hydraulic