Relief valve opens automatically, relieving system pressure to prevent over pressurization of a system. Process pressure acts against the bottom of the disc. As pressure exceeds the setpoint for the valve, established by a spring in most cases, the disk is pushed upward. When system pressure returns below the valve's setpoint, the spring push back the of the disc forcing it shut. By adjusting the tension on the spring, the setpoint can be adjusted. 
 

STANDARDS ASME, BS/DIN and IBR codes. 
DESIGN AND TESTED as per API-526/527.
WORKING PRESSURE AND TEMPERATURE Maximum pressure of 500 kg/cm2 and a Temperature of 4500C
MATERIAL such as C.I., C.S., SS-304/316, Hastelloy, B & C, Alloy-20,and to suit special corrosive applications valves are manufactured in PVC, Polypropylene etc..

C.I.E manufacture a wide range of FLUSH BOTTOM VALVES for chemical and process industries. The Valves are used in reaction vessels, autoclaves and other pressure vessels. Flush Bottom Valves are designed for a maximum pressure of 280Kg/cm2 and temperature of 400 degree centigrade. The Valves seating are stellited / Teflon / neoprene / viton. In optional cases, depending on the process, the valves are provided with heating/cooling jackets. Extra long spindle and modified handwheel with cylinder arrangements can be offered for closing the valves.

Valves are offered in different models, such as

Rising stem
lowering stem
piston type

Material of constructions are
C.I, CS, SS-304/316/33304, ALLOY-20M HASTELLOY B& C, P.P., PVC, TEFLON lined/coated, Rubber lined/lead lined

C.I.E. manufacture a wide range of BREATHER VALVES for use in various chemical/process industries for all sorts of application in design to prevent vapor losses by evaporation in storage containing volatile liquids and to safeguard the vessel in vacuum/pressure condition. During vacuum it breathes the air/gas inside the vessel and protects the external pressure. When the vessel is loaded, the gas pressure is built up. The pressure port which is set to open discharges the excess gas through the venting line. The general materials are C.I., CAST STEEL, STAINLESS STEEL, SS-304/316, ALLOY-20 and any other material as per client's requirements.

NON RETURN VALVES are used to permit flow of fluids through a system in one direction only. Check valves are self-operating and do not need to be manually operated. 

MATERIAL : SS-304 SS3I6 , CAST STEEL, CAST IRON .For corrosive application the valves can be manufactured in PVC, PP and HDP, and for specialized application valves are manufactured in lead/rubber linings. Flanged are as per ANSI, BS, DIN and IS for pressure upto 200 kg/cm2.

TYPES

Swing Check

SIZES : 2" to 16" in flanged connection. 
 

Disc Lift Check

SIZES: 2" to 6" in flanged connection. 
½" to 2" in screwed connection
 

VERTICAL LIFT BALL CHECK VALVE
SIZES:

CIE manufacture a wide range of Ball Valves for use in Chemical Process Industries. 

MODELS: Two Piece, Three Piece and Full Bore design for general applications. 

MATERIAL: material such as C.I., Cast Steel, Stainless Steel, Investment Casting, Brass, G.M., Alloy-20 and Hastalloy B & C. For high temperature viton rings or carbon rings are used. For corrosive application the valve is rubber/lead lined, Teflon lined or coated with corrosion resistant material such as P.V.C., Polypropylene, H.D.P.E. etc. Special application The valve has floating ball design with Teflon seat for common seating. The valve is also provided with heating/cooling jackets to suit process application. An extra long handle with gear / pneumatic / electrical actuator facilitated smooth leverage.

C.I.E. manufactures a wide range of GLOBE VALVES for use in chemical, petrochemical and allied process industries.

Valves are manufactured and tested as perASME/API codes. Full port design eliminates the pressure drop and permits a smooth flow.

SIZES :

The sizes range from 1/4" to 2" in screwed connection
1" to 12" in flanged connection

OP PRESSURE AND TEMPERATURE : Maximum pressure of 250kg/cm2 and temperature of 400LC.

MATERIALS : The valves are made from C.I., C.S., SS - 304/316, BRONZE, ALLOY-20 AND HASTELLOY B AND C. Seats are stellited which increases the valve life and leakage is totally nullified. Back seating arrangement permits re-packing and gland while the valve is in use. Valves are provided with heating/cooling jackets.