Pneumatic hard seal butterfly valve D671H-16C

D671H-16C Pneumatic Clamp Hard Seal Butterfly Valve

D671H-16C adopts pneumatic actuator and clamp connection, with a page diameter of DN50-DN800, pressure of PN1.6-PN4.0MPa, and material fields of WCB, 304 or 316. According to the model structure code 1, this page describes the center vertical plate.

Hard sealed butterfly valves cannot be directly equivalent to triple eccentric valves

Hard sealing describes the sealing secondary material and structure, while the eccentric form is determined by the specific geometric structure. The structural code of this model is 1, therefore the template content of three eccentricities, no friction, and fixed 600℃ in the old text has been deleted.

Pneumatic control

The selection of the actuator should be based on the opening and closing torque, gas source pressure, single or double acting, and the safe position for gas loss; Electromagnetic valves, limit switches, and positioners are configured according to the project.

More pneumatic butterfly valves can be found fromSelection of pneumatic valvessee.

Frequently Asked Questions

Is D671H-16C triple eccentric?

This page is processed as a center vertical plate according to the JB/T model structure code 1.

Does metal sealing necessarily mean zero leakage?

No, it should be determined based on specific testing standards and product results.

Can the air source pressure be uniformly fixed for 0.4-0.7MPa?

It cannot be used as a unified guarantee value for all executing agencies, and should be confirmed based on actual executing agency data.