Ratnakar Steel India is a premier supplier of high-performance **Stainless Steel Valves**, engineered for precise flow control in demanding industrial environments. Our valves are manufactured to withstand extreme pressures and corrosive media, ensuring operational safety and longevity.

Flow Control & Material Analysis

We offer a comprehensive portfolio of valves designed for leak-proof performance, ranging from heavy-duty industrial gate valves to high-precision instrumentation needle valves.

  • Valve Types: Ball, Gate, Globe, Check, Butterfly, and Needle Valves
  • Pressure Ratings: Class 150 to Class 2500 | 1000 WOG to 10,000 PSI
  • Material Grades: SS 304, 304L, 316, 316L, 317L, 321, 347, Duplex, Super Duplex
  • End Connections: Flanged, Threaded (NPT/BSP), Socket Weld, and Butt-Weld

Stainless Steel Valves Technical Data

Size & Pressure Ratings
SIZE RANGE: 1/4" to 24" (DN8 to DN600) PRESSURE CLASS: 150#, 300#, 600#, 800#, 1500#, 2500# WOG RATING: 1000, 2000, 3000, 6000 PSI
Material Grades
SS GRADES: 304, 304L, 316, 316L, 317L, 321, 347 CAST GRADES: CF8, CF8M, CF3, CF3M, CN7M (Alloy 20) FORGED GRADES: F304, F316, F321, F347, F51 SPECIALTY: Monel, Hastelloy, Duplex 2205, Super Duplex 2507
Valve Types & Connections
TYPES: Ball, Gate, Globe, Check, Butterfly, Needle, Plug OPERATION: Manual Handwheel, Lever, Gear, Actuated ENDS: Flanged (RF/RTJ), Screwed (NPT/BSP), BW, SW
Operational Ratings
TEMP RANGE: Cryogenic (-196°C) to High Temp (550°C) SEALS: PTFE, RPTFE, PEEK, Metal-to-Metal DESIGN: Fire-Safe, Anti-Static, Blow-out Proof Stem
Industrial Applications
Oil & Gas Refineries Chemical & Petrochemical Plants Pharmaceutical & Food Processing Water Treatment & Marine Systems
Testing & Compliance
STANDARDS: API 6D, API 600, API 598, ASME B16.34 TESTING: Hydrostatic Shell & Seat Test, Pneumatic Test CERTIFICATION: API 6FA (Fire Safe), ISO 9001, CE/PED

Our Manufacturing Standard

Our production process adheres to strict international safety codes. Every valve is precision-machined and tested for seat leakage and structural integrity to ensure fail-safe operation in your piping systems.

01. Grade Selection

Identifying the optimal alloy (e.g., 316L for chemical resistance) based on the media and temperature requirements.

02. Precision Assembly

CNC machining of valve seats and stems to ensure perfect sealing and smooth torque-free operation.

03. Quality Testing

Rigorous hydrostatic and pneumatic testing to verify zero-leakage performance under peak load conditions.