GV Specification:

Product Name: Gate Valves
Bore Size: 1‑13/16″, 2‑1/16″, 2‑9/16″, 3‑1/8″, 4‑1/16″, up to 9″
Body & Bonnet Material: AISI 4130 Forged Alloy Steel                     
Outlets: Flanged or Threaded
Standards: API Spec 6A, NACE MR0175
Pressure Rating: 2,000–20,000 psi
Material Class: AA, BB, CC, DD, EE, FF, HH
Temperature Class: LU, LY
Performance Requirement: PR1, PR2
Product Specification Level: PSL1–PSL4