Manual Valve
Designed for reliable manual flow control and fluid isolation across industrial applications.
MD Valves designs and manufactures rugged, precision-machined Manual Industrial Valves built for reliable on/off fluid isolation and mechanical throttling across demanding pipeline networks. Engineered with ergonomic heavy-duty hand levers, enclosed worm-gearboxes, and multi-turn handwheels, our manual valves ensure low operating torque, zero stem leakage, and dependable sealing performance.
- Actuation Modes: Ergonomic locking levers, declutchable heavy-duty gear units, and rising / non-rising handwheels.
- MOC & Metallurgy: Premium Stainless Steel (SS 304, SS 316, SS 316L), Cast Carbon Steel (WCB), and specialty alloys.
- Leak Tightness: 100% factory hydrostatic and pneumatic seat testing ensuring positive bubble-tight shutoff.
Manual Valve
Technical Specifications – Manual Valves
MD Valves manual industrial valves are engineered for dependable mechanical isolation and precise flow throttling across process pipelines, utility headers, and pump manifolds. Built with ergonomic hand levers, enclosed gear operators, and blowout-proof stems, these valves deliver low-torque operation, zero stem leakage, and reliable bi-directional shutoff under severe line pressures.
The matrix below provides key technical specifications and construction standards for quick engineering evaluation:
Parameter | Specification | Key Benefit |
Operation Type | Quarter-Turn Lever, Handwheel & Worm Gearbox | Smooth, low-effort mechanical line operation |
Material (MOC) | SS 304, SS 316, SS 316L, Cast Steel (WCB) | High resistance to corrosion and line stress |
Pressure Class | PN10, PN16, PN40, ANSI 150#, 300#, 600# | Stable performance under extreme hydrostatic surges |
Size Range | 1/2" (DN15) to 24" (DN600) | Complete sizing range for utilities and main headers |
End Connections | Flanged (ANSI B16.5 / DIN), Screwed (BSP/NPT), Socket Weld | Universal fitment with standard plant piping |
Sealing / Seats | Virgin PTFE, RPTFE, PEEK, Metal-to-Metal | 100% bubble-tight bi-directional sealing |
Safety Features | Blowout-Proof Stem, Anti-Static, Padlock Bracket | Prevents stem ejection and unauthorized tampering |
Testing Standard | API 598 / BS 6755 / EN 12266-1 | Fully pressure tested for zero leakage |