チョークバルブ
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サイズ: 2インチ
圧力定格：10,000 PSI（API 6Aに準拠）
オペレーター: 電動アクチュエータ
接続端: RTJフランジ (API 6BX)
構成: アングルパターン、バランスのとれたケージトリム
表面仕上げ：サンドブラストおよびエポキシコーティング
温度範囲: -29°C～425°C
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概要: サイズ:1インチ、定格:10000PSI、10K、材質:ASTM A182 A105本体およびボンネット、ASTM A182 F105+TCCディスク、ASTM A182 F6Aステム、TCCオーバーレイボディシート、オペレーター:ハンドホイール、エンド:API 6A、API 6D。 -
写真の仕様は以下のとおりです
サイズ:3インチ
定格: 10000PSIG
ボディとボンネット：TC YG6
プラグ: TC YG20
ステム：インコネル625
ケージ：インコネル625
座席: YG 6
駆動方式：電動アクチュエータ
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写真の仕様は以下のとおりです
サイズ:DN100
評価: PN100
ボディとボンネット：A216 WCB
プラグ: 410SS
ステム：316SS
ケージ: 410SS
シート: 410SS
駆動方式：空気圧アクチュエータ
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簡単な：
サイズ:1/2インチ
評価:4500LB
材料:
ASTM A105ボディとボンネット
ASTM A105 +ステライト6ディスク
ASTM A182 F6Aステム
ステライト6オーバーレイボディシート
オペレーター: ハンドホイール
終了: ANSI B16.25に準拠したBW
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Nominal Size 2 Inch (DN50)
Pressure Class 1500 LB (PN260)
Body Pattern Angle Type
End Connection Flange Ends, conforming to ASME B16.5
Flow Characteristic Approximate Equal Percentage
Flow Coefficient (Cv) Approx. 15 (Specific to opening, test curve available upon request)
Leakage Class ANSI B16.104 Class IV (Metal Seat) or Class VI (Soft Seat, if applicable)
Operation Manual – Aluminum Alloy Handwheel/Knob
Temperature Range -29°C to +425°C (Dependent on gasket and packing materials)
Applicable Media Suitable for high-pressure differential and erosive media, e.g., high-pressure water, steam, oil-gas mixtures.
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Valve Type Needle / Choke Type Throttling Valve (Globe pattern or Angle pattern)
End Connection Flanged, Raised Face (RF)
Body Manufacturing Process Open Die Forging (Free Forging)
Nominal Size NPS 12 × 10 (DN300 × DN250)
Port Reduction Inlet 12″, Internal seat bore reduced to 10″
Pressure Class Class 600 (ASME B16.5)
Body Material A105 (Carbon Steel)
Service Medium Water / Oil / Gas / Steam (as per process)
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Nominal Size 2 Inch (DN50)
Pressure Class 1500 LB (PN260)
Body Pattern Angle Type
End Connection Flange Ends, conforming to ASME B16.5
Flow Characteristic Approximate Equal Percentage
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1. Product Name API 6A Adjustable Choke Valve
2. Standard API 6A 21st Ed. (or latest)
ISO 10423
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Product Name Adjustable Angle Choke Valve
Valve Type Angle Pattern (Vertical Inlet / Horizontal Outlet)
Nominal Size 4″ (4 1/16″ / 103 mm nominal bore)
Pressure Rating 3000 PSI (21 MPa)
End Connections Flanged (API 6A), Optional: Hub or Welded
Design Standard API Spec 6A / API Spec 16C
A choke valve is a type of control valve specifically designed to regulate the flow and pressure of fluids—especially in high-pressure systems such as oil and gas production. It works by varying the size of the flow passage through a movable component, often a plug or needle, which reduces or increases flow rate accordingly. Unlike standard valves that primarily open or close flow, choke valves are meant for precise throttling, allowing operators to control production rates and manage pressure drops in wellheads and pipelines. They are built to withstand harsh environments, including corrosive and erosive fluids, thanks to durable materials like tungsten carbide or Inconel. Choke valves can be fixed or adjustable: fixed choke valves use a static orifice size, while adjustable versions allow dynamic control via manual or automated actuation. In many systems, they serve as the first line of control, reducing pressure from reservoir levels to downstream equipment tolerances. Their reliability and accuracy make them essential in high-pressure oilfield operations, ensuring safe, stable, and efficient fluid handling over long periods.
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