Design description:
1. API 603 DESIGN FOR 150 LBS & 300 LBS.
2. API 600 DESIGN FOR 600 – 1500 LBS.
3. Outside screw and yoke.
4. Bolted bonnet (pressure seal bonnet for 1500 lbs).
5. Yoke integral with bonnet.
6. Loose disc.
7. Integral seat and back seat for 150 LBS & 300 LBS.
8. Rising stem and handwheel (impact hammer handwheel for 10" & over).
9. Available with gear operator.
10. Available with actuator.
1. Materials: (1) A351-CF8. (2) A351-CF8M. (3) A351-CF3M. 2. Ends: (1) Flanged ends. (2) Buttwelding ends. 3. Ratings: (1) ANSI 150, 300, 600, 900 and 1500 LBS. (2) JIS 1OK, 20K, 30K, and 40K. (3) PN 16 and 40.