Design Standard: API 594
Valve Type: Dual Plate Check Valve
Body: ASTM B148 C95500
Disc&Pin: Aluminum Bronze.
Spring: Inconel X-750.
Pressure: CLASS 1500.
Size: 4IN
Feature:
1. Metal Seat ( SS304,316, Stellite)
2. Inconel X 750 Spring
3. Light Weight
4. External without Leakage