At Marck & Care Engineers Limited (MNC Valves), manufacturing is the physical execution of engineering responsibility. Established in 2000, the company follows a controlled manufacturing model where machining accuracy, assembly discipline, inspection rigor, and testing integrity define reliability.

Manufacturing is treated as a process discipline, not an assembly activity.

In-House Machining Capability

Machining accuracy determines sealing integrity and pressure boundary performance. MNC Valves maintains in-house machining infrastructure to ensure dimensional control and repeatability for pressure-retaining components.

Lathe Machines — Core Manufacturing Backbone

• Heavy-duty long-bed lathe machines for valve bodies and pressure-retaining parts
• Medium & heavy-capacity lathe machines for shafts, stems, discs, and trims

Engineering outcomes:

Bore concentricity
Accurate sealing geometry
Pressure boundary integrity

CNC & Conventional Machining

CNC machining for repeatability-critical features and Conventional machining for customized and project-specific requirements.

Machined components include valve bodies, discs, shafts, stems, and critical trim parts.

Assembly & Mechanical Integrity

Assembly is governed by defined mechanical controls:

Specified torque values and tightening sequences
Alignment verification of moving components
Sealing surface inspection

Each assembled valve is treated as a pressure system, not a finished product.

Testing Facilities

Every valve undergoes mandatory testing prior to release:

Hydrostatic pressure testing (shell and seat)
Pneumatic pressure testing
Functional verification

Testing is conducted in alignment with applicable API, ISO, EN, and IS standards to validate structural strength and sealing performance.

Inspection & Process Control

Manufacturing activities are supported by:

• Documented procedures

• Calibrated measuring and testing instruments

• Inspection and test records

Inspection is integrated throughout the process to validate engineering intent at each stage.

Manufacturing Discipline

Reliability is not created at dispatch—it is built on the shop floor.

Machining accuracy, controlled assembly, structured inspection, and proven testing together define performance in service.

Manufacturing & Infrastructure