Product Overview

DEENPU Positive Chokes are engineered to provide consistent, fixed-orifice flow control in demanding well service applications. Unlike adjustable chokes that allow continuous flow variation, positive chokes feature a precisely machined, fixed-diameter orifice that provides a known, repeatable flow coefficient. This design is ideal for applications where a specific, constant flow restriction is required and the choke setting will not need to change during operation.

Each DEENPU positive choke is manufactured from high-strength alloy steel forgings with the same quality standards as our adjustable choke assemblies. The forged body construction provides superior pressure integrity compared to cast alternatives, while the precision-machined orifice ensures accurate flow control within tight tolerances. Standard 1502 hammer union connections provide rapid, reliable connection to well service piping and manifolds.

DEENPU positive chokes are available in both 2″ and 3″ sizes with a range of standard orifice diameters to match your flow control requirements. The choke orifice is designed for extended service life in abrasive flow conditions, and the entire assembly can be quickly replaced in the field when the orifice becomes worn. Both standard and H2S sour service configurations are available.

How It Works

DEENPU positive chokes operate on the principle of fixed orifice flow restriction. High-pressure fluid enters the choke through the 1502 female inlet and passes through a precisely machined orifice of fixed diameter. The orifice creates a known pressure drop proportional to the flow rate, allowing the choke to maintain a consistent downstream pressure and flow rate under stable operating conditions.

The fixed orifice design eliminates the need for adjustment mechanisms, handwheels, or packing systems. This simplifies the choke construction, reduces potential failure points, and lowers maintenance requirements. The orifice is machined from hardened alloy steel with precision tolerances to ensure consistent flow characteristics across all units of the same orifice size.

When the orifice eventually wears due to abrasive flow conditions, the entire choke assembly is replaced as a unit. This approach ensures that every choke in service provides the same, predictable flow restriction as when it was new. The compact design allows for quick field replacement, minimizing downtime during well service operations.

Key Features

DEENPU 2″ 1502 Positive Choke (DN-FCM-9901)

The DEENPU 2″ 1502 Positive Choke is the industry standard for fixed-orifice flow control in well service operations. Designed for high-pressure service with standard 1502 hammer union connections, this choke provides reliable, consistent flow restriction with minimal maintenance.

2″ 1502 Positive Choke Specifications

DEENPU 3″ 1502 Positive Choke (DN-FCH-9902)

The DEENPU 3″ 1502 Positive Choke delivers high-capacity fixed-orifice flow control for larger-volume well service operations. Featuring the same forged steel construction and quality standards as the 2″ model, the 3″ choke handles higher flow rates with the same reliability and minimal maintenance.

3″ 1502 Positive Choke Specifications

Replacement Parts

DEENPU provides a comprehensive range of genuine OEM replacement parts for both the 2″ and 3″ 1502 Positive Choke models. All parts are manufactured in-house to the same quality standards as the original assemblies, ensuring full interchangeability and reliable performance.

2″ 1502 Positive Choke Replacement Parts

3″ 1502 Positive Choke Replacement Parts

Applications

DEENPU Positive Chokes are trusted across the full spectrum of well service and production operations:

Ordering Guide

To request a quotation or place an order, please specify the following information:

Quality Control & Testing

DEENPU maintains ISO 9001:2015 certified quality management systems. Every positive choke is subjected to the following quality assurance before shipment:

Frequently Asked Questions