设计标准

ASME B16.34

ASME Section III

设计范围

CAST

Size Range: DN 65 to 800; NPS 2½ to 32

Pressure Class Range: PN 50 to 760; Class 300 to 4500

Seating Material: Metal

FORGED

Size Range: DN 250 to 400; NPS 10 to 16

Pressure Class Range: PN 420; Class 2500

Seating Material: Metal

特点&优势

Utilizes optimized flow passages to minimize flow direction changes and reduce pressure drop

Rigid body design to minimize body distortions and minimize leakage

Detached design minimizes body stress for increased body and hardfacing life-time

Provides precise disc alignment through seating to minimize leakage between disc and seat

Fugitive Emission Certifications to ISO 158748-1, 2500 pressure class, CO3 Endurance Class (2500 mechanical cycles)

Fugitive Emission Certifications to API 624

配置

Stop-check valve

Cast (standard)

Forged (optional)

• High Temperature Service — F91 material

• Proprietary Nickel Buttering Hardfacing Process