Hydra Series Choke Valve **Patent Pending

Transcription

1 Hydra Series Choke Valve product of GI Industries

2 Hydroplex Choke Valve Hydroplex chokes are Multiple Orifice Valves (MOV) specifically designed to control high pressure liquids and gases while providing reliability and extended service. The body and control surfaces are constructed to provide optimum meantime between services, and the modular construction make the valve easily serviceable on site or completely repairable with minimal down time. The design flexibility allows for field conversions from manual to automated, and single stage to multiple stage pressure drops. The optional abrasion resistant wear sleeve is designed to direct the flow from the discs to the centerline of the piping. This option will extend the useful life of the valve by reducing the effects of cavitation and mechanical erosion typically present in the fluid recovery process after the pressure drop. Principle of Operation 0 Two adjacent discs each containing two precision holes (orifices). Full Closed 45 The front disc rotates against a fixed back disc, from a fully CLOSED 0 position to a fully OPEN 90 position. Throttling 90 Full Open The front disc floats against the back disc creating a mated interface and assuring a positive seal. Differential pressure across the upstream disc promotes sealing, and stabilizes control surfaces. Discs are lapped to within two light-bands of flatness (.00002) to achieve a positive shut-off and maintain precise control. Disc floats and allows face to face alignment FLOW Downstream Disc Upstream Disc

3 Features Quarter-turn valve (90 degrees full on/off) Unique Hub Design Direct Mount ctuation (HC/HCY) 5000 psi MWP Differential Pressure pplications Liquid & Gas Pressure or Flow Control utomated & Manual pplications Gas Storage Gas Lift Pump Startup Heated Separators Directional Drilling Water & Gas Injection Disposal Wells Optional Features Stellite 6 Wear Sleeve for high pressure drops and abrasive fluids. Multistage DP system utilizing fixed orifice beans for multi-stage pressure drop. Torque Ratings Operating Torque 1,000 lbs. 160 in.-lbf 2,000 lbs. 210 in.-lbf 3,000 lbs. 270 in.-lbf 4,000 lbs. 360 in.-lbf 5,000 lbs. 480 in.-lbf Benefits Reduced cost of ownership Better control resolution Field valve repair with minimum down time pplication flexibility Extended service life Minimum wear of control component Lower actuation torque Valve serviced without removing actuatuor Body Size 1 inch nominal 2 inch nominal Standard Materials of Construction Body & Hubs SS (UNS S31600/STM 182) Seals - Peroxide Cured Buna N 90D Disc - Tungsten Carbide with Nickel Binder Internals - ISI Type S17400 PH Tungsten Carbide Trim Options Orifices Cv 64th inch Hole Equiv. Dia. Geometry 2 ea. - 1/ Round 2 ea. - 1/ Round 2 ea. - 3/ Round 2 ea. - 1/ Round 2 ea. - 3/ Pie

4 Component Detail 1. Valve Body: Durable and corrosion resistant 316 stainless material. 2. Hub ssembly: llows easy access to internals without breaking pipe connections, disconnecting or recalibrating the actuator. The design allows for less expensive replacement of the downstream hub in lieu of replacing the whole valve body. 3. Wear Sleeve (Optional): ll valve hubs allow for wear sleeves. The wear sleeve is made from a durable Stellite material for abrasive or turbulent environments extending valve life. 4. Fixed Orifice Bean (Optional): The hub design allows for placement of a Fixed Orifice Bean to achieve up to a 2(HCI) or 3(HC/HCY) stage pressure drop within the valve. The fixed orifice bean also extends the life of the valve. 5. MOV Trim: ll valves come standard with Tungsten Carbide Trim available in sizes up to 3/4. 6. Rotator: The smaller rotator outside diameter reduces operating torque, requiring smaller and less expensive actuators. 6.* Stem ssembly: The smaller shaft diameter reduces operating torque, requiring smaller and less expensive actuators. 7. Manual Handle: The handle and rotator are specially designed to resist thread pull out. 7.* Manual Handle (Optional): The thumb screw on the handle will resist movement of the stem until released. 8. Calibration Plate: Handle equipped with indicator pointing to a Calibration Plate showing percentage and # of 64ths open. 9. ctuator Mounting (Optional Not Shown): Design allows for mounting of common valve actuators with a simplified system to reduce hysteresis.

5 Model HCI Segmented Inline Choke Valve The Hydroplex HCI Segmented Inline choke Valve provides many of the same features common on Hydroplex choke valves but at a lower initial cost. The simplified inline design lends itself easily to manual actuation, although it may be automated as the need arises. Because it uses the standard Hub on the downstream side it can be outfitted with a wear sleeve or utilizing a multistage PD system we can specify a fixed orifice bean to accommodate large pressure drops. The inline design and smaller rotator size also allows for lower operating torques. HCI THREDED HCI Choke ssembly Dimensions Size Dimensions (in.) Connection 1 in. 2 in FNPT RF RF /600RF /1500RF RTJ RTJ /600RTJ /1500RTJ Bevel for Weld MNPT FNPT RF RF /600RF /1500RF RF RTJ RTJ /600RTJ /1500RTJ RTJ Bevel for Weld *ll models available with 1, 2 & 3 flange. Consult factory for futher information. HCI FLNGED

6 The Hydroplex HC & HCY Choke Valves provide a complete package for flow control. The direct mount capabilites reduces the risk of hysteresis while helping to protect the actuator shaft from the elements. The modular hub design makes the valve completely repairable and can handle large pressure drops utilizing our Multistage PD system to include upstream and downstream fixed orifice beans. HC THREDED Size Dimensions (in.) Connection 1 in. 2 in. HCY Choke ssembly Dimensions *ll models available with 1, 2 & 3 flange. Consult factory for futher information. Model HC & HCY Choke Valves FNPT RF RF /600RF /1500RF RTJ RTJ /600RTJ /1500RTJ Bevel for Weld MNPT FNPT RF RF /600RF /1500RF RF RTJ RTJ /600RTJ /1500RTJ RTJ Bevel for Weld HC FLNGED HCY THREDED HC Choke ssembly Dimensions Size 1 in. 2 in. Dimensions (in.) /B Connection FNPT RF RF /600RF /1500RF RTJ RTJ /600RTJ /1500RTJ Bevel for Weld MNPT FNPT RF RF /600RF /1500RF RF RTJ RTJ /600RTJ /1500RTJ RTJ Bevel for Weld *ll models available with 1, 2 & 3 flange. Consult factory for futher information. HCY FLNGED

7 Valve Hub & Downstream Wear Sleeve The Hydra Choke hub system is designed as a versatile solution for client specific application, valve installation and maintenance. The unique locking wedge ring design allows for greater sealing force while minimizing stress concentrations. The hub is a repair part extending the service life of the valve assembly. major benefit of this design is working pressure migration. The body is rated at NSI Class 2500 regardless of end connection. To increase or decrease the pressure class of the valve, simply change out the hubs. For example, replacing both hub assemblies rated at NSI Class 150 with assemblies rated at Class 2500 will allow the product to be moved from MWP 275 psi to a 5000 psi working pressure. n additional feature of the hub is the ability to install wear sleeves or fixed orifices to provide greater protection and extended service. Multistage Choke ssembly Multistage PD ssemblies are used for reducing fluid pressure or flow (velocity). While single stage trims are often sufficient to meet the requirements, there are situations due to process conditions where a single pressure drop is unacceptable. In these situations, the use of a Multiple Stage PD valve is a better solution. Obviously the primary consideration for the use of multiple restriction is the pressure drop, regardless whether the fluid is liquid or vapor/gas. Higher pressure drop implies higher velocities resulting in erosion, vibration and noise problems. Consideration should be given for use in gas applications at critical flow. If the process condition indicates critical flow with a single pressure drop, Multistage PD valves can be used to avoid operating at or above the critical pressure. Critical implies a pressure drop across the device exceeding 50% of the absolute upstream pressure at which point sonic velocity is reached. Where high pressure drops in liquid flows are required, multistage PD assemblies should be used to achieve the pressure drop while reducing the potential for problems such as cavitation, flashing and high noise levels. Fluid Pressure Inlet Pressure (P2) B Cavitation Pv C Single Stage Reduction Multistage Reduction Vapor Pressure (Pv) Pressure Drop (Stage) Outlet Pressure (P2) Flashing Travel in Flow Stream (travel)

8 lso vailable From Hydroplex Complete injection systems for Enhanced Oil Recovery (EOR) to customer specifications. High Pressure Test Units High Pressure Regulators High Pressure Triplex Pumps Hydroplex Corporation 230 W. Gloria Switch Rd. Lafayette, L Distributed By: product of GI Industries