RFQ

KROHNE DK Series Glass Cone Flow Meters

  • NG # 02960-HW-KROHNE-015

Glass cone variable area flow meters for low flow liquid and gas applications.

Manufactured By :
KROHNE
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Overview

The product is designed with a simple and low-cost measuring principle that operates without the need for auxiliary power, making it a practical solution for a wide range of applications. It comes with robust options for construction materials, including stainless steel, brass, or PVDF fittings, ensuring durability and compatibility with different environments. Depending on your installation needs, the product is equipped with a needle valve in either the foot or headpiece, providing flexibility in controlling flow rates and maintaining precision.

The product can operate within a broad temperature range from 23°F to 212°F, allowing it to be used in various industrial processes. It is built to handle pressures up to 145 psi, supporting reliable performance even in demanding conditions. The device is capable of measuring both liquid and gas flow rates, with liquid flow rates ranging from 0.01 to 42 gallons per hour (gph) and gas flow rates between 0.022 to 180 standard cubic feet per hour (scfh). This makes it suitable for different types of fluids and gases across industries.

Additionally, the product features two limit switches (ring initiators) that allow for precise flow rate control and monitoring. Its accuracy ranges from 1.0% to 4.0%, depending on the length of the cone used, ensuring reliable measurements in critical applications. It is also designed for use in hazardous areas, complying with ATEX standards, making it a safe choice for operations in potentially explosive atmospheres. With a variety of available process connections, the product offers versatility and ease of integration into existing systems, making it an adaptable and efficient solution for flow measurement in numerous industrial settings.

Specification

The KROHNE DK 46, DK 47, DK 48 and DK 800 are variable area flow meters designed for low flow liquid and gas applications. These meters are especially well suited to measuring carrier gases in gas chromatography; for display, monitoring and dosing of gases in production processes; and for measuring liquids and gases in laboratories and pilot installations.

KROHNE DK series glass cone variable area flow meters utilize simple, float technology. The measuring unit consists of a glass cone in which a float can move freely up and down. As the medium flows through the meter, the height of the float on the scale indicates the flow rate. These meters measure liquid flow rates from 0.01 to 42 gph and gas flow rates from 0.022 to 180 scfh. The different models of this series correspond to varying cone length for different accuracy requirements. For precise setting of the flow value, all devices are equipped with a metering valve.

The KROHNE DK 46, DK 47, DK 48 and DK 800 variable area flow meters are simple to install and require little maintenance. It is easy to change the measuring glass, which is protected by a plastic cover, without disassembling the fitting. In applications with fluctuating operating pressure, a differential pressure regulator can be directly connected in order to ensure constant flow.

DK46DK47DK48DK800
Liquid Flow (low)0.065 gph0.13 gph0.01 gph0.065 gph
Liquid Flow (high)42 gph25 gph25 gph42 gph
Gas Flow (low)0.022 scfh
(DKR46)		0.06 scfh0.025 scfh0.018 scfh
Gas Flow (high)45 scfh
(DKR46)		30 scfh110 scfh180 scfh
Accuracy4.0%2.5%1.0%2.5%
Length4.37"
5.36" (DKR46)		7.72"13.6"5.75"
TemperatureMinimum: 23°F; Maximum: 212°F (149°F with limit switches)
Pressure145 psi (brass and SS fittings); 58 psi (PVDF fittings)

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