MHW70 Series

Hydraulic piston actuators

The MHW model of Saf-T-Gard actuators provides enough force to shear wireline, braided line, or coiled tubing in the event that the well must be shut down during an emergency condition.

It contains the same features as the standard MH model and adds springs that provide the thrust to perform the cutting force required.

Saf-T-Gard MHW actuators offer a reliable and robust design that can be installed in harsh and remote environments.

Features

Fail-safe design
Rising and nonrising stem designs
Head and housing orientation
Nonpressurized actuator housing
Superior piston design
Cameron seals
Fixed drift adjustment
Easy maintenance
Accessories

Specifications

Actuator

API Spec 6A actuators for use with 4 1/8- through 6 3/8-in nominal gate valves
API Spec 6A Appendix F, PR-2-qualified
Temperature range: –20 to 250 degF [–29 to 121 degC]
Standard piston sizes: 4 to 7 in
6,000-psi maximum operating pressure
9,000-psi test pressure
Standard 1/2-in NPT inlet port
Wireline cutting closing force
Wide range of options and accessories available

Bonnet

Standard stem and bonnet material: API (material and temperature class dependent)
PSL 1, 2, 3, and 4 available
Standard bonnet backseat test port provided
Standard packing leak indicator port provided