1. www.hwayoo.com, sales@hwayoo.com
Copyright © 2016 Hwayoo Petroleum. All rights reserved.
Technical Specifications:
Standard API Spec 6A
Working Pressure 2,000 psi ~ 20,000 psi
Working Temperature P-U
Bore Size 2-1/16” ~ 3-1/8”
Material Class AA-HH
Surface Safety Solutions
Hydraulically or pneumatically actuated gate valves plus our user-
friendly control panel enable safe and easy operations.
Hwayoo Surface Safety Solutions provide
our clients with fail-safe surface safety
valves (SSV) and reliable control panels
for standard and demanding operations,
such as production, well intervention and
stimulation.
Applications:
Onshore and offshore production,
intervention and stimulation operations.
Features:
• Automatic shut-in for facility protection
in overpressure, underpressure and fire
scenarios.
• Emergency shut-down from stainless
steel control panel.
• Pressure Setting for Overpressure Pilot
Valve: 300-10,000psi
• Pressure Setting for Underpressure
Pilot Valve: 70-3,500psi
• Working Pressure of Accumulator:
1,500-2,500psi
• Fire Trigger Temperature of Fusible
Plug: 120℃
• Welded stainless steel piping, fitting
and connection in an integrated module
for hydraulic system.
• Stainless steel control panel easy for
all-weather services.

2. www.hwayoo.com, sales@hwayoo.com
Copyright © 2016 Hwayoo Petroleum. All rights reserved.
Surface Safety Solutions
Hydraulically or pneumatically actuated gate valves plus our user-
friendly control panel enable safe and easy operations.
Surface Safety Valve (SSV)
Our safety valves are hydraulically or pneumatically
actuated gate valves. The actuators, either hydraulic
or pneumatic, are designed and manufactured for
simplicity, ease of maintenance and adaptability in
compliance with API 6A specifications and as
required for different applications of size, stroke and
force.
Control Panel
We design our control panels for user-friendly and
easy-maintenance consideration. The integrated
control module has replaced the conventional piping
and connection setup. This saves time of
maintenance and troubleshooting.
Optional cold service seal package enables the actuator to exceed performance standards for cold,
hostile environments. Limit switches, valve position indicators, fusible and standard lockout caps, stem
protectors, mechanical and hydraulic opening assemblies are also available.