Angle Choke Valves Adjustable Motorized—API 6A 10000psi

Description

Technical Data Sheet

API 6A Adjustable Motorized Angle Choke Valve — 10,000 psi

Valve Type: Angle Pattern Adjustable Choke Valve (Motorized, Modulating Control)
Model Example: ACV-2116-10K-RTJ-6A-ME
Nominal Size: 2-1/16″ (representative size; available from 1-13/16″ to 4-1/16″)
Pressure Rating: 10,000 psi (69.0 MPa)
Operation: Motorized modulating actuator (standard with intelligent integral electric actuator); handwheel override or hydraulic override optional

1. Design Standards & Compliance

Item Standard / Requirement
Design & Manufacturing API Spec 6A / ISO 10423, 21st Edition
Product Specification Level (PSL) PSL 1, 2, 3, 3G, 4 (as specified)
Performance Requirement (PR) PR 1, PR 2 (PR 2 recommended for frequent modulating service)
Material Class AA, BB, CC, DD, EE, FF, HH (per API 6A / NACE MR0175)
Temperature Class L, N, P, R, S, T, U, V (−46 °C to +177 °C)
End Connections API 6A Type 6B Flanged, RTJ Ring Joint Face
Electric Actuator Standards ISO 22153 (Part-turn/Multi-turn electric actuators); IEC 60034 series; IP68 protection optional
NACE Compliance NACE MR0175 / ISO 15156 (Sour Service), as applicable
2. Valve Configuration

Parameter Specification
Valve Type Adjustable Choke Valve: The stem is driven by the electric actuator to continuously vary the choke bean opening area, achieving precise flow/pressure control.
Body Pattern Angle Pattern (90° flow path), forged one-piece construction
Nominal Bore 1-13/16″ to 4-1/16″ (46 mm to 103 mm)
Working Pressure 10,000 psi (69.0 MPa)
Trim Type Needle & Seat or Plug & Seat; with tungsten carbide hardfacing or solid tungsten carbide
Choke Bean Orifice Equivalent orifice size corresponding to adjustable stroke; fixed bean interchangeable upon request
Bonnet Type Bolted Bonnet
Flow Direction Flow-to-close (Flow under seat), suitable for choke service
Leakage Class API 6A PR2 zero leakage; ANSI FCI 70-2 Class IV (standard) / Class V (optional)
Applicable Media Crude oil, natural gas, drilling mud, fracturing flowback fluid, water injection, CO₂, H₂S, etc.
Working Temperature −46 °C to +200 °C (depending on material class and seals)
Fire-Safe Design API 6FA / API 607 (optional)
Fugitive Emission ISO 15848 (optional)
3. Materials of Construction

Component Standard Material (AA/BB) Sour Service (DD/EE/FF) Special Corrosion-Resistant
Body AISI 4130 / 4140 Low Alloy Steel 316 SS / F51 Duplex / Inconel 718 Carbon Steel, Duplex SS, Nickel Alloy
Bonnet AISI 4130 / 4140 Low Alloy Steel 316 SS / F51 Duplex / Inconel 718 Same as above
Stem / Needle 17-4 PH / Inconel 718 + Hardfacing Inconel 625 / 718 + Hardfacing Super Duplex / Inconel 718
Seat Integral / Inconel Clad + Stellite Inconel Clad + Stellite / Tungsten Carbide Tungsten Carbide
Plug / Choke Bean 17-4 PH / Inconel 718 + Stellite / Tungsten Carbide Solid Tungsten Carbide / Stellite Tungsten Carbide (Insert/Clad/Solid)
Cage (if applicable) — Duplex / Inconel 625 / Solid Tungsten Carbide Solid Tungsten Carbide
Stem Packing PTFE V-Ring / Graphite / Chevron Packing PTFE + Graphite / High-pressure seals Low-emission packing (ISO 15848)
Body Gasket Metal Seal / Viton / PTFE Metal-to-Metal / Graphite-filled spiral wound —
Studs & Nuts ASTM A193 B7 / A194 2H ASTM A193 B7M / A194 2HM (Sour) / Stainless Steel B8M / 8M
External Coating Epoxy Paint (standard) Special coatings upon request —
Note: For highly erosive services, Solid Tungsten Carbide Trim is recommended, including body, bonnet, stem, seat, cage, and sleeve in tungsten carbide for maximum erosion resistance.
4. Dimensions & Weights — 10,000 psi RTJ Flanged End

Nominal Size Max Orifice Face-to-Face A (mm) Center to Top B (mm) Ring No. Approx. Weight Manual (kg) Approx. Weight Motorized (kg)
1-13/16″ — — — — — —
2-1/16″ 1″ 224 195 BX 152 55 80
2-9/16″ 1″ 237 208 BX 153 70 100
2-9/16″ 2″ 298 264 BX 153 85 120
3-1/16″ 2″ 298 264 BX 154 110 150
4-1/16″ 3″ 350 289 BX 155 180 230
Dimensions based on API 6A angle choke valves, 10,000 psi working pressure. Increased weight and height for motorized version depend on actuator selection; values are estimates.

5. Electric Actuator Interface & Parameters

Actuator Configuration: Modulating multi-turn electric actuator (or linear electric actuator per requirement), providing 4-20 mA or fieldbus control.

Item Specification
Mounting Flange Standard ISO 5211 (or custom bracket per actuator requirement)
Stem Connection Stem top machined with keyway or square to match actuator output drive sleeve
Actuator Type Intelligent integral multi-turn electric actuator (modulating)
Power Supply 380V / 220V AC, 50/60 Hz 3-phase or 1-phase (24V DC optional)
Control Signal Input: 4-20 mA DC; Output: 4-20 mA DC position feedback
Control Mode Local handwheel + remote automatic control; local/remote switchable
Enclosure Protection IP68 (submersible) / NEMA 4, 4X (optional)
Explosion Protection Ex d IIB T4 or Ex d IIC T4 (ATEX / IECEx / CNEX)
Stroke Range Actuator full stroke corresponds to valve fully closed to fully open; settable via limit switches and torque sensor
Position Indication Local LCD display showing percentage opening; mechanical position indicator
Manual Override Independent handwheel, electric/manual clutch switch, operable manually when power is off
Additional Functions Torque protection, overheat protection, loss-of-signal fail action (stay-put / fully open / fully close), Modbus/Profibus fieldbus communication (optional)
Ambient Temperature −40 °C to +70 °C (per actuator specifications)
Note: Specific actuator brand, model, and detailed parameters can be selected based on actual service conditions, such as Rotork IQ, AUMA, BERNARD, etc., and can be supplied in the datasheet upon request.

6. Testing & Inspection

Test Item Test Medium Test Pressure Standard
Shell Hydrostatic Test Water 1.5 × Rated Working Pressure (15,000 psi / 103.5 MPa) API 6A
Seat Hydrostatic Test Water 1.1 × Rated Working Pressure (11,000 psi / 75.9 MPa) API 6A
Seat Pneumatic Test (Optional) Air / Nitrogen Per PSL requirements API 6A
Electric Actuator Function Test — Full stroke operation, modulating accuracy, torque protection, remote control Manufacturer’s Standard / ISO 22153
Integrated System Commissioning — Simulated control signal, verify position feedback linearity and dead band Per agreement
Fire Test (Optional) — Per API 6FA / API 607 API 6FA / API 607
Visual & Dimensional — — MSS SP-55, API 6A
Hold Duration: Minimum 15 minutes; PSL 3G and PSL 4 include witnessed material tests and extended hold periods.

Documentation:

Material traceability and test reports per EN 10204 3.1 or 3.2
API 6A Monogram certification (optional)
Actuator certificates of conformity, explosion-proof certificates, calibration reports
7. Design Features

Angle Forged Body: 90° flow path reduces erosion, compact and robust.
Motorized Adjustable Choke: Employs an intelligent electric actuator accepting 4-20 mA signal for step-less modulation, enabling precise production control and remote automatic operation.
Carbide Choke Trim: Choke bean and seat manufactured from Stellite or Tungsten Carbide, providing erosion resistance and long service life; fixed bean interchangeable for fixed choke versions.
Multi-Stage Anti-Cavitation Cage Trim (Optional): Staged pressure reduction avoids cavitation and flashing damage, suitable for high differential pressure service.
Balanced Plug Design (Optional): Reduces actuator thrust requirements and improves modulating accuracy.
Blowout-Proof Stem: Integral collar prevents stem ejection under line pressure.
Top-Entry Maintenance: Internal components can be replaced quickly without removing the valve body or actuator, reducing maintenance costs.
Metal-to-Metal Bonnet Seal: Ensures pressure boundary integrity.
Sour Service Capability: Materials compliant with NACE MR0175/ISO 15156 available upon request.
Integrated Safety Functions: Actuator features fail-in-position on power loss, torque protection, overheat protection, and configurable ESD (Emergency Shut Down) signal.
8. Ordering Information

When ordering, please specify:

Valve Type: Adjustable Motorized Angle Choke Valve
Nominal Size (e.g., 2-1/16″) and Pressure Rating (10,000 psi)
Operation: Motorized, Modulating
Trim Type: Needle/Plug, hardfaced or solid tungsten carbide
Material Class (AA/BB/CC/DD/EE/FF/HH)
PSL Level (1/2/3/3G/4) and PR Level (1/2)
Temperature Class (L, N, P, R, S, T, U, V)
End Connection: API 6A Type 6B RTJ Flanged
Actuator Power Supply: 380V/220V/24V DC, explosion protection class required (e.g., Ex d IIC T4)
Control Requirements: 4-20 mA input/output, or fieldbus communication (Modbus, Profibus)
NACE MR0175 Compliance: Yes/No
Fire-Safe Certification: Required / Not Required
Fugitive Emission Certification: Required / Not Required
Documentation: EN 10204 3.1/3.2 material certificates, product certificates, explosion-proof certificates, commissioning reports, etc.