API 6A High-Pressure Choke Valve | Adjustable & Positive Flow Control

Precision Flow Regulation for Demanding Oilfield Wellhead and Manifold Applications

Our API 6A Choke Valve is a critical flow-control component engineered for high-pressure oil and gas production systems. Designed to regulate fluid flow rate and downstream pressure precisely, these valves are manufactured from premium forged alloy steel and high-grade corrosion-resistant materials to ensure maximum reliability in the most extreme working environments.

Whether you require a fully adjustable throttle for precise metering or a fixed positive choke for constant flow restriction, our API 6A certified choke valves provide the safety, durability, and operational efficiency required for modern wellhead and manifold operations.

Key Features & Design Advantages

Dual Function Options: Available in both Adjustable Choke (with external stem and indicator scales for precise flow trimming) and Positive Choke (with interchangeable fixed-bean inserts for constant pressure drop) configurations.

Superior Corrosion Resistance: Engineered with critical internal trim components (seat, needle, and cage) made from highly resistant materials like Stainless Steel, Inconel, or Hastelloy, ensuring exceptional longevity in sour gas (H₂S) and high-salinity fluid environments.

Visible Position Indicator: Adjustable models feature a clear, rugged external indicator scale that allows operators to monitor the valve's opening position (often in 64ths of an inch) at a glance, enabling precise flow adjustments without guessing.

Robust Forged Construction: The valve body and bonnet are forged from high-strength alloy steel, capable of withstanding extreme pressure fluctuations and mechanical stress in both onshore and offshore applications.

Multiple Connection Interfaces: Designed with versatile end connections to fit into your existing piping seamlessly. Available with API 6A Flanges, Hammer Union connections, or premium Threaded connections.

Industry Certifications: Manufactured in strict compliance with API 6A (including PR1/PR2 performance requirements) and NACE MR0175 standards to ensure global safety and quality acceptance.

Technical Specifications

Adjustable vs. Positive Choke Valves

To better serve your specific operational requirements, we provide both primary types of choke valves:

Adjustable Choke Valve: Ideal for applications requiring variable flow control. An external needle or cage mechanism modulates the flow area. The clearly marked indicator dial allows incremental, step-less adjustments to fine-tune the production rate.

Positive Choke Valve: Designed for fixed or "bean" flow control. It utilizes a replaceable, tungsten-carbide coated flow bean (insert) with a precise hole diameter. This provides a constant choke size, ensuring a specific pressure drop across the wellhead without moving parts, highly recommended for extreme erosive services.

Dimensional & Model Reference (Example Configuration)

(Note: Exact dimensional data varies based on specific pressure ratings and flange sizes. Our team can provide precise drawings upon request.)

Primary Industrial Applications

Our forged choke valves play a vital role in critical upstream and midstream operations, including:

Wellhead Flow Control: Regulating production rates from oil and gas wells.

Fracturing & Stimulation Manifolds: Controlling high-pressure fluids during hydraulic fracturing operations.

Water Injection Systems: Managing injection pressures and flow rates for Enhanced Oil Recovery (EOR).

Well Testing & Completion: Ensuring safe pressure management during drill stem testing (DST) and well clean-up.

Partner with Us for Your Flow Control Needs
As a trusted supplier of premium oilfield equipment, we offer competitive pricing, fast global shipping, and flexible sizing to match your project's exact needs. Our technical support team is ready to assist with material selection and valve sizing. Request a quotation today for your wellhead or manifold projects.

WHO WE ARE

Beijing Sunrise Technology Co., Ltd. (Sunrise), established in 2012 and headquartered in Beijing, has grown into a globally trusted supplier of oilfield equipment. With over a decade of experience, Sunrise stands as a reliable, high-quality partner for the world’s most demanding energy markets. 

From our very beginning, we set out to bridge the gap between China’s world-class manufacturing capabilities and the global oilfield industry’s need for reliable, cost-effective, and technically sound equipment. Today, Sunrise is recognized as one of the most consistent and quality-driven suppliers of oilfield machinery across the world, serving clients in more than 15 countries on five continents.

WHAT WE DO

“We trade oilfield equipment. But first, we trade our own peace of mind.”

As a trading company focused on oilfield equipment and tools, we help our clients source reliable products without the usual delays or documentation gaps.

When we receive an inquiry, we review it carefully to understand your specifications and delivery requirements. For quoting, we default to factories we have worked with for years — suppliers whose quality and performance we know firsthand. Rather than operating a single factory, Sunrise has built a cooperative ecosystem with China’s leading and most reputable oilfield equipment manufacturers. Over recent years, we have carefully selected and partnered with these manufacturers to offer our clients the most integrated product lines available. This strategy allows us to remain agile – we are not limited to one production line or one technology. Instead, we can source the best equipment for each specific application, ensuring that our customers receive exactly what they need, without compromise.

Along with every quotation, we provide the supporting documents you actually need: datasheets, relevant certifications, and material test reports with full traceability. This way, you have everything to review and approve from the very beginning — no back-and-forth chasing paperwork.

Our Core Advantages

✅ One-Stop Oilfield Equipment Supply

We offer an integrated product portfolio including workover and drilling rigs, cementing, fracturing, acidizing, stimulation services, oilfield environmental protection equipment, oil recovery machinery, and high-pressure fluid control pipes & manifolds.

✅ Certified Quality – API & ISO Standards

All products comply with API Spec 4F, 7K, 8C, 16C, ISO9001, ISO10012, ISO14001, and were recognized among the *Top 100 Chinese Oilfield Equipment Manufacturers (2001-2011)*.

✅ Strong Engineering Team for Full Lifecycle Support

Our in-house engineers support customers from pre-order consultation, production supervision, to rig-site commissioning and after-sales service.

✅ Global Export Experience

Sunrisetech equipment covers all major onshore oilfields in China and has been exported to more than 15 countries across 5 continents.

✅ Strategic Cooperation with China’s Top Manufacturers

We work closely with the most reputable Chinese factories to offer cost-effective, reliable, and integrated product lines without compromising quality.

Our Vision for the Future

Looking ahead, Sunrise aims to become the world’s most trusted oilfield equipment trading partner – not by being the largest, but by being the most reliable and responsive. We are committed to continuous improvement in three key areas:

 Operational efficiency – Helping our customers reduce non‑productive time and lower cost per barrel.

 Environmental responsibility-Expanding our line of environmental protection equipment and promoting sustainable practices across the industry.

 Global partnership-Building long‑term relationships with oil companies, drilling contractors, and service providers worldwide.

 We believe that the future of oilfield supply lies in smart integration, engineering transparency, and unwavering quality. Sunrise is ready to lead that future – one rig, one well, one solution at a time.