Brodie Model BV Valves The superior pilot operated piston ...

1 Accurate flow control of hydrocarbon products: Brodie Model BV Valves The superior pilot operated piston Valves The Control Valves offered by Brodie International are self contained, balanced piston , pilot operated Valves that can be configured to perform a wide variety of control functions. Whether your application is loading terminals, aircraft refuel- ing, flow rate control, on-off control, pressure control, pump control or tank safety applications, Brodie has a control valve designed to meet your particular needs. Maximum profitability. Brochure BV Valves R01. Total Control all the time piston - operated Valves vs. Diaphragm Valves Designed to meet the challenges for today's petroleum and Reduced Cost of ownership environmental needs, Brodie 's positive sealing and linear Long service life, only one moving part There are many advantages in using piston - operated control action control Valves provide uniform speed of response and Cylinder can be removed without removing body from Valves as opposed to diaphragm- operated Valves , including: leak-proof performance.

2 The line Cylinder assemblies available as replacement kits Higher flow capacity - lower pressure drop Security & Control Optimum control at low flow gives better batching control automatic shutoff for emergency protection Pressure monitoring at all times Simple O-ring sealing - no special diaphragms Uniform speed of response Alternative O-rings easily obtainable if product specifica- piston Valve Diaphragm Valve Flow modulation avoids delayed response and valve tions change at a later date slam Features pilot operated Positive Sealing/Zero Leakage Linear Operating Performance Modular construction/easy inline service Adjustable opening and closing speeds - prevents damaging shock pressure Linear action control for uniform fast speed of control With a piston valve, there is a linear relationship between 100.

3 Simple design without diaphragms percentage open and flow rate, giving much better control, 90. Common valve body and internal mechanism simplifies and preventing instability, especially at low flow rates. 80 Diaphragm Valve spare parts inventory 70. Multiple control functions can be performed with one 60. % Flow valve 50 Brodie piston Valve 40. 30. Design Features 20. 10. 45 degree body configuration 0. Cylinder Minimal directional changes of the 0 10 20 30 40 50 60 70 80 90 100. liquid results in low pressure drop % Valve Open Check valve functionality The valve piston spring, biased to the closed position, has Valve Body Valve Spring equal front and rear surface areas. This means that every [machined casting] t Keeps the piston in a normally Outle closed position and provides for Brodie Model BV valve has check valve functionality, with bubble-tight shut-off - no additional system check valve is an automatic return function- required to prevent reverse flow.

4 Ality Inlet The valve will only open when upstream pressure is suffi- cient to overcome spring force. Stainless Steel piston Ensures fail-safe valve operation even under harsh conditions Dynamic O-Rings How do pilot operated Valves work? pilots are devices added to the basic valve which are used to steer the valve piston open or closed as required by the application. There are two basic pilot types: On/Off pilot These are electrically switched pilots which force the valve to open or close. On/Off pilot UL, CSA, ATEX, IECEX, NEPSI [China] etc. certification available. Pressure regulating pilot These pilots allow the valve to be throttled to any degree to provide various pressure control schemes.

5 Pressure regulating pilot Self regulation Valves which utilize only pressure regulating pilots are totally self regulating, requiring no external actuation or other energy source. Once the pilots are set, the Valves will continue to function automatically until such times as settings are changed. There is no necessity for any external pressure measure- Valve fitted with pressure ment of regulation. Just "set and forget". regulating pilot Highly versatile: the different types of BV Valves BV 10 and BV 11: On/Off Control Valve Example BV10. The Brodie Control Valve is the most versatile in the market. The BV 10 is the normally closed and [Normally Closed]: A single valve can incorporate one or multiple control func- the BV 11 is the normally open version tions to meet the exact requirements for on/off and modulat- of this solenoid operated valve designed ing control of liquid products.

6 For remote On/Off control applications. Select either NO or NC for required fail- Control combinations are virtually unlimited. The different safe strategy. functions are provided in a single standard body with differ- BV70. ent pilots . The pilot valve is a fully balanced, two- way valve with integral manual override Brodie Valves are pressure balanced, single seated and features. The external piping is fitted position operated . The Valves are hydraulically operated and BV60 BV86 with a strainer [ pilot control line] and a Closed use the flowing fluid stream as the power medium. They are needle valve for controlling the speed of [ pilot not energized]. equipped with a needle valve in the pilot supply line for ad- closure and for sensitivity control.

7 Remote or local On-Off justing the closing rate and for sensitivity control. A strainer is incorporated in the pilot flow line upstream of the needle Typical applications include timing or cy- valve. cling processes, batch control, deadman, high level tank control or emergency BV10/11. Brodie Valves are designed to offer economic solutions while shut-down. meeting the most stringent demands of aggressive product BV89. applications such as product blending using MTBE, TAME, BV 10. Thyl or Methyl alcohols, reformulated fuels, solvents etc. BV54. By utilizing a combination of fluid product elastomers, Brodie Open has developed this highly versatile control valve option. [ pilot energized].

8 BV 02 and BV 03: Check Valve, Basic Function Model BV 28: Power Cylinder operated Digital Control Valve The Brodie BV02 Check Valve is designed to provide Pneumatic or hydraulic operation smooth, shock-free opening and closure to prevent reverse flow. Minimum Pressure Drop Non-Surge Check Fail-safe/bubble tight shut-off Closed Available for on/off two stage or digital control pneumatic and hydraulic positioning BV02 [with manual valve] Ideal for use in tank safety, remote on/off control or by-pass control on distribution systems, automatic drainage from storage and emergency shut-off on The Brodie BV03 is supplied as a basic valve with no loading and unloading lines controls. It is utilized as replacement or original equip- 50% open ment in applications where custom control is desired by the end user.

9 As with all Brodie BV Control Valves , it may be adapted for hydraulic, pneumatic or soleneoid pilot control. BV03 [without manual valve] fully open BV 50: Pressure reducing Valve BV 60: Back Pressure Control/Pressure Relief Valve The Model BV50 Pressure Reducing The Brodie BV60 Back Pressure Control/Pressure Relief Valve is designed for close regula- Valve is designed for close regulation of back pressure, tion of downstream pressure. Typical pressure relief and surge control. applications include petroleum dis- tribution systems, make-up control In applications for metering systems or pipelines, the BV60. and over pressure of meters and is used to hold a minimum back pressure on the outlet of a Closed pipelines.

10 Closed meter for more consistent operating conditions. In applica- pilot closed pilot closed tions of pump relief or bypass, the valve is used to relieve Constant downstream pressure is excess pressure. maintained within +/- 2 psi [ kPa]. or better, regardless of variation in A constant back pressure is maintained within +/-2 psi [ flowrate or upstream pressure. kPa] of set point, regardless of variations in flow rate or upstream pressure. Close regulation for downstream Open [controlled]. pressure Open [controlled] Pressure Control Two Stage Hydraulic pilot partially open Pressure Regulation Over-pressure protection pilot partially open Uniform response speed Positive shut-off BV 50.