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Fluidyne Instruments Pvt. Ltd. Fluidyne Instruments Pvt. Ltd. Fluidyne Instruments Pvt. Ltd. Fluidyne Instruments Pvt. Ltd. Fluidyne Instruments Pvt. Ltd. Fluidyne Instruments Pvt. Ltd.
Fluidyne Instruments Pvt. Ltd.
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Fluidyne Instruments Pvt. Ltd.
Fluidyne Instruments Pvt. Ltd.

Safety Relief Valves

Fluidyne manufactured Safety Valves and Safety Relief Valves, Thermal Relief Valves, Boiler Safety Valves, Dead weight Safety and Relief Valves, Pilot operated Safety Relief Valve conform to API, ASME and IBR codes. Fluidyne carried out an extensive market research to design and manufacture durable and effective Safety Valves and Safety Relief Valves that are highly suitable for most chemical, petrochemical, oil, pharmaceutical, fertilizer, power and engineering industries and more. These industrial safety relief valves, flanged safety relief valves, dead weight relief valves, sanitary safety relief valves are high reliability and are approved by factory inspectors, inspectors under Indian Boiler Regulation (IBR), B.V., Lloyds and Chief Controller of Explosives. FLUIDYNE safety and relief valves are in used in above industries for over 35 years. Fluidyne Safety Valves and Safety Relief Valves are Full Lift, 'Pop' action type, Full Nozzle or half nozzle having Screwed Butt/Socket weld or Flanged connections. Various Models are available as per requirements of customers. Sizes Range : ¼”(6 NB) to 12” (300 NB). All API standard Orifice sizes are available. Both Angle and Straight (in-line) Patterns are available. Inverted-Bottom spring mounted types available for mounting inside mobile pressure vessels. Connection offered are Screwed, Sanitary or Socket Weld / Butt Weld ends and Flanged ends to 150#, 300#, 600#, 900#, 1500# and 2500# rating. Flanged connections are offered with FF, R/F and RTJ ends to ANSI B16.5, BS, DIN,. Safety Valves and Safety Relief Valves are manufactured from castings and by fabrication from bar stock and all special trims provided as per customer requirements. Fluidyne manufactured Safety Valves and Safety Relief Valves, Thermal Relief Valves, Boiler Safety Valves, Dead weight Safety and Relief Valves, Pilot operated Safety Relief Valve conform to API 520, API 526, API RP 527, ASME SEC VIII DIV I and IBR codes Set pressure and hydro tests as per specification or standard are carried and provided. FLUIDYNE manufactures following types of Safety Valves and Safety Relief Valves :-







Safety Relief Valve (Type - TA 100)



These Safety and Relief Valves are Standard models manufactured to API 520, API 526, API RP 527, ASME SEC VIII DIV I and IBR codes having full lift and high capacity and fitted as original equipments on boilers, reactors, pressure vessels and reactors.

Technical Specification:
OrificeValve SizeMax. Pr. Rating PSIGA mmB mmC mm
D-0.110 in21D2 1 ½ D 2600 150090 90120 135325 310
E-0.196 in21E2 1 ½ E2600 150090 90120 135325 310
F-"0.307 in21 ½ F2 1 ½ F2 ½600 150090 90135 135310 310
G-0.503 in21 ½ G2 1 ½ G2 ½ 2G3600 900 150090 110135 150310 310
H-0.785 in21 ½ H3 2H3600 1500130 130124 124400 415
J-1.287 in22J3 3J4600 1500130 155124 160124 160
K-1.838 in23K4 3K6600 1500140 180190 180580 750
L-2.853 in23L4 4L6300 1500140 150190 190580 720
M-3.600 in24M6900150190 720
N-4.34 in*4N6900150190 720
P-6.380 in24P6900150190 720
Q-11.050 in26Q8600220245810
R-16.00 in26R8 6 R10300 600220 275245 280810 1100
T-26.0 in28T10300270225920




Safety Relief Valve (Model: 200B)



Fluidyne range of small bore safety valves, industrial safety relief valves, flanged safety relief valves, industrial safety valves, flanged safety valves offer superior performance and maximum functionality. They are available in Screwed, Socket weld, Sanitary, Conflat and Flanged Construction type or flanged-inlet, Screwed-outlet connection type. Their simplicity in construction makes them pretty cost effective and easy to use.

Technical Specification:
  TypeOrifice Area inSizeA B C Weight Approx.
Screwed X Screwed Socket-Weld X Socket-Weld Connection 200B-10.041/2 x-1/285552155
200B-20.063/4 x 3/485652156
200B-30.111x1 .85752156
200B-40.1961 ½ x 1 ½100753006

Flanged X Flanged Connection

200B-50.113/4x190953006.5
200B-60.1961 x 1 ½1001053008.5
200B-70.1961 ½ x 211512030015
200B-80.1962x211512030018
200B-90.4421 ½ x211512038017
200B-100.4422x211512038020
200B-120.6902½ x 2½ 12210024528




Boiler Safety Valve (Model BSV-100)



Fluidyne Boiler Full Lift Full Flow Safety Relief Valve is a high performance valve designed and developed for steam and water service. It can also be used for most other applications like gases and vapors, saturated steam, superheated steam. Fluidyne Safety Relief Valve is designed for steam service. The valves are designed as per API 520, API 526 and meets the requirements of ASME Sec VIII-Division I. Fluidyne Boiler Safety Valves are offered with IBR Certification in Form III-C. The valves have a full nozzle or half nozzle and guided at the guide of the valve body, increasing the eficiency of the valve assembly. Specially designed disc holder ensures full lift within 5% to 10% overpressure or increase of pressure above the set pressure value. Blow down of a maximum of 5% to 10% is achieved in this design. Lapping of valve seat to optical flatness ensures leak tightness at seat. Full lift of valve disc ensures that the certified flow of the safety valve is discharged. Spring made of chrome vanadium steel is precisely selected and assembled so that the valve operates precisely and a good leak tightness is achieved at high temperatures with great repeatability.




Deadweight Safety Valve



Fluidyne Deadweight Safety valve consists of a valve seat where the pressure in the boiler or pressure vessel when it exceeds the normal working pressure lifts the valve seat with its weight. The excess pressure fluid therefore escapes through the pipe to the atmosphere, until the pressure reaches its normal value. It is the simplest type of safety valve; it is suitable for stationary boilers and pressure vessels only, because it cannot withstand the jerks and vibration of mobile boilers or pressure vessels. Another disadvantage of this valve is the heavy weight required to balance the pressure. Hence, it is not suitable for high pressure boilers.




Backpressure Safety / Relief Valve



FLUIDYNE Backpressure Safety Relief or Surplus or Diaphragm Assisted Safety Relief Valve is single seated, diaphragm controlled and spring regulated valve where the pressure of the system being relieved, acting upon the diaphragm provides a sensitive control of the valve opening in accordance with the regulating spring setting. The application or ideal for installations where a direct spring loaded type is too insensitive to pressure or flow changes. The Fluidyne Backpressure Relief Valve Protects systems from overpressure and Monitors pump outputs. Fluidyne Backpressure Relief Valve is most suitable for water, air, gas, steam, oil or chemical services.



Fluidyne Instruments Pvt. Ltd.


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