Products
API 6A gate valves, actuators, surface wellheads and X-mas trees, plus Proserv IWOCS equipment.
See productsAPI 6A gate valves and actuators, Proserv IWOCS equipment, field services and root cause failure analysis.
PT. Mekanika Hirarki Seraya is a specialist provider of wellhead, gate valve and actuator solutions for the oil and gas upstream sector. We are dedicated to delivering high-quality products that meet API 6A specifications.
API 6A gate valves, actuators, surface wellheads and X-mas trees, plus Proserv IWOCS equipment.
See productsWellhead installation, inspection and maintenance, plus well intervention, workover and completion.
See servicesRoot cause failure analysis of wellhead accessories and equipment, with laboratory testing by US Corrosion Services.
See RCFAAPI 6A wellhead equipment, built for the surface side of the well.
Gate valves built to API 6A for wellhead and surface equipment.

Hydraulic actuators that open and close API 6A gate valves.

Pneumatic actuators that open and close API 6A gate valves.

Surface wellhead and X-mas tree assemblies for production wells.

Installation and workover control equipment for tree and wellhead operations.
HPUs that supply and regulate hydraulic pressure for IWOCS functions.
Control panel units, mini panels and emergency shutdown stations for operating and securing the system.
Umbilical reels and mini reels, umbilicals in several core counts, and sheaves for deck deployment.
Multi-core deck jumpers, ESD and air hoses, and umbilical and wire clamps.
Flushing rigs and skids, test hoses, chart recorders, hydratron pumps and nitrogen pre-charge kits.
Tool boxes, fluid sample kits, spill kits, and open-top and mini containers for transport.
Scope of supply is specified per project. Proserv and other product names are trademarks of their respective owners.
Two departments, one team on location.
Installation, inspection and maintenance of wellhead equipment.



Well work from the rig floor.


When wellhead equipment fails, we find out why, so it does not happen again.
We gather the failure history, operating conditions and the failed component.
We document the failure and examine the part visually and dimensionally.
Laboratory testing with our partner US Corrosion Services in Houston, Texas, including electron microscopy.
You receive the root cause findings and recommended corrective actions.
Our focus: wellhead accessories and equipment, such as gate valves, actuators and their components.
We are committed to delivering the highest quality products and services. Our personnel are well known in the industry for their product knowledge and technical expertise, built over more than 30 years of experience.
Oil and gas operates around the clock, and so does our technical support team. Our engineers and field personnel have worked closely with many customers to develop solutions customized to their needs.
Safoco, Inc. of Houston, Texas appointed MHS as its exclusive agent for the promotion, sale, technical support and service of the Safoco and Array product lines in Indonesia. The lines include gate valves, actuators and control systems for high-pressure, high-temperature oil, gas and geothermal applications.
Operators and service companies we work with.




Tell us what you need and we will reply with a quote or next steps.