What are Valves
Valves are mechanical devices that controls the flow and pressure within a system or process. They are essential components of a piping system that conveys liquids, gases, vapors, slurries etc..
Different types of valves are available: gate, globe, plug, ball, butterfly, check, diaphragm, pinch, pressure relief, control valves etc. Each of these types has a number of models, each with different features and functional capabilities. Some valves are self-operated while others manually or with an actuator or pneumatic or hydraulic is operated.
Types Of Valves
Standard Specifications of Valves
| Size | 6 NB to 600 NB |
| Form | Ball Valve, Gate Valve, Globe Valve, Plug Valve, Butterfly Valve, Pinch Valve, Check Valve, Non-Return Valve, Foot Valve, Strainer, Needle Valve, Pressure Gauge, Temperature Gauge, etc |
Material of Construction in Valves
Stainless Steel Valve Specifications
Grades : 304, 304L, 309, 310, 316, 316L, 317L, 321, 347, 405, 409, 410, 420, 430, 440C, 904L
Alloy Steel Valve Specifications
Grades : ASTM A182, ASME SA182 GR F11, F12, F22, F5, F9, F91.
Carbon Steel Valve Specifications
Grades : ASTM A105 / A350 Cast Iron, Gr. LF2, LF3.
Duplex & Super Duplex Steel Valve Specifications
Grades : 2205 (S31803 / S32205), SMO254 (S32154), 2507 (S32750 / S32760), Ferralium 255 (S32550)
High Nickel Alloy Valve Specifications
Grade : ASTM B564, ASME SB564 GR 200 (N02200), 201 (N02201), Alloy 20 (N08020),
400 (N04400), 500 (N05500), 600 (N06600), 601 (N06601), 625 (N06625),
718 (N07718), 800 (N08800), 800H (N08810), 800HT (N08811), 825 (N08825),
C726 (N10276), C4 (N06455), C22 (N06022), C2000 (N06200), X (N06002),
B2 (N10665), B3 (N10675).
Copper Alloy Valve Specifications
Grades : Commercial, ETP, OFE, CuNi 90/10 (C70600), CuNi 70/30 (C71500), Brass, Naval Brass,
Aluminium Bronze, Admiralty Brass.
Titanium Valve Specifications
Grades : 2, 5 (Ti6AI4V), 7.
