设计标准

API 6D - ASME VIII-1/2

设计范围

Size Range: 4"-30" (And more upon request)

Pressure Class Range: ASME B16.34 150# to 1500#

Seating Material: Carbon steel ENP plated (as standard)

特点&优势

Cost effective

Simple, reliable design

Tight shutoff 

API 6D isolation features (DBB-DIB_1-Block and bleed- Self relieving)

配置

Standard

Pressure Envelope: o-ring and fire safe graphite

Seat: Primary metal - secondary soft

• API 6D Isolation Features: DBB-DIB_1-Self relieving-Block and bleed

• Fittings: Drain - Vent, Stem and seat grease injectors

• Standard acting

Reverse Acting (upon request)
As standard, but normally open