KV Controls: Preferred Supplier of Copes-Vulcan Desuperheaters in South Africa

As a leading provider of industrial valve and control solutions, KV Controls is the preferred supplier of Copes-Vulcan Desuperheaters in South Africa. With years of experience and a strong reputation for delivering high-quality products, KV Controls offers a comprehensive range of desuperheating solutions tailored to the specific needs of various industries.

KV Controls’ expertise ensures that businesses in power generation, petrochemical, and other sectors receive reliable support and solutions that enhance operational efficiency and equipment longevity. By partnering with trusted manufacturers like Copes-Vulcan, KV Controls continues to lead the way in providing innovative steam control systems across the region.

For businesses seeking precision, reliability, and efficiency in steam temperature management, KV Controls stands out as a top choice.

What is the Function of a Copes-Vulcan Desuperheater?

A Copes-Vulcan Desuperheater is a critical component in steam systems, designed to reduce the temperature of superheated steam to a desired level, close to its saturation point. The process, called desuperheating, involves injecting cooling water into the steam, which absorbs heat and lowers the steam’s temperature. This allows for precise temperature control, ensuring the steam is in an optimal state for various industrial applications.

Desuperheaters play a vital role in preventing damage to downstream equipment, enhancing efficiency, and ensuring system safety. The Copes-Vulcan Desuperheater stands out for its accuracy, flexibility, and ability to meet the demands of high-temperature applications, making it a reliable choice for industries requiring efficient steam control.

Industries and Applications

Copes-Vulcan Desuperheaters find application in a wide range of industries, including:

1. Power Generation: Power plants rely on desuperheaters to control steam temperatures for turbines and heat recovery systems, improving efficiency and protecting equipment from excessive heat.
2. Petrochemical Industry: Desuperheaters are used in refining processes to maintain optimal steam conditions, supporting critical operations like cracking and distillation.
3. Pulp and Paper: Steam is essential for processes like drying and pressing in the pulp and paper industry. Desuperheaters ensure precise temperature control, contributing to energy efficiency and quality production.
4. Chemical Processing: Chemical plants utilize desuperheaters to regulate steam temperature in reactors and other processing units, ensuring consistent and safe operations.
5. Food and Beverage: Desuperheaters help manage steam conditions in food processing applications, such as sterilization and cooking, by maintaining appropriate temperatures.
6. Pharmaceutical Manufacturing: Maintaining precise steam conditions is crucial in pharmaceutical production, and desuperheaters are used to control steam temperature during sterilization and other critical processes.

Celeros FT manufactures the Copes-Vulcan general service and severe duty control valves, desuperheaters and direct steam converting valves, as well as reciprocating, centrifugal, multi-stage and screw type pumps, filtration systems and strainers.

MULTIPLE NOZZLE SPRAY DESUPERHEATER (MNSD)

OFFERS HIGH TEMPERATURE CAPABILITIES AND LOW COOLANT CLASS V LEAKAGE RATING

The Multiple Nozzle Spray Desuperheater offers optimum performance and rangeability in a variable spray tube design. The Model MNSD-V fills the performance gap between the limited capability of a simple mechanical spray type desuperheater and the virtually unlimited capability of Copes-Vulcan’s Variable Orifice Desuperheater (Model VO). And, the MNSD-V offers high temperature capabilities and low class V leakage rating.

FEATURES

• Temperature control to within 15°F (8°C) of saturation with the ability to hold set point within a tolerance of 10°F (6°C)

• Standard maximum available Cv of 10.5 (Kv of 8.9)

• Waterflow turndown of 150:1 or higher

• User friendly design — nozzles and trim assembly can be removed without disconnecting    actuator

• No need for separate cooling water control valve

• Designed for applications with temperatures up to 1150°F (620°C)

• Available in standard classes 600, 900, 1500 and 2500 per ANSI B16.5

• Cooling water inlet pressures up to 3500 psig (24 MPag) allowable standard (higher pressures allowable per application)

• ANSI Class V FCI 70-2 tight shutoff capability

• Suitable for vertical or horizontal installation

• Standard ANSI connections: 3″ (80mm) raised face flange (steam) 1.5″ (40mm) raised face flange (water)

• Designed for high thermal fatigue life

Many applications require turndowns in excess of that offered by a simple mechanical spray desuperheater. Many applications require turndowns in excess of that offered by a simple mechanical spray desuperheater but do not necessarily warrant the expense or require the additional refinements offered by the Variable Orifice Desuperheater. Many of these intermediate duties can be met with a steam atomizing type desuperheater (SA-35), but atomizing steam is often not available, or the additional installation and operational expense is not economically justified. The Multiple Nozzle Spray Desuperheater has been designed for these applications. The MNSD-V Desuperheater automatically controls the cooling water flow with the ability to modulate and shutoff. A separate cooling water control valve is not required as the unit itself controls variations in required coolant flow. Unlike competitive models that can only operate with relatively low water inlet pressures, the MNSD-V can be supplied to accept cooling water inlet pressures to 3500 psig (24 MPag).

DESIGN AND PRINCIPLE OF OPERATION The MNSD-V consists essentially of a cage-guided plug situated within the nozzle tube just behind the discharge nozzles. The nozzle tube assembly fits up into the bore of the mounting flange and is locked in place with a threaded ring. This junction enables the cooling water inlet connection to orient in any direction relative to the position of the discharge nozzle spray at time of assembly. * Field alteration of this orientation is also quite easy. The MNSD-V Desuperheater head offers a means of mounting the unit to a companion flange on the main header. It also provides an inlet connection for the cooling water, a gland assembly for stem sealing and a mounting arrangement for the dependable Copes-Vulcan Model 700 Diaphragm Actuator.

DISCHARGE NOZZLES
The multiple nozzle arrangement located near the end of the nozzle tube is composed of up to 22 uniquely designed discharge nozzles arranged in an overlapping manner to offer an extremely smooth flow characteristic. The quantity, individual sizes, and placement of the discharge nozzles are selected for each application to optimize capacity, maximize controllability and rangeability.

COOLING WATER
The cooling water is admitted to the nozzle tube assembly through the branch in the mounting head. It reaches the lower portion of the nozzle tube assembly as the plug exposes the nozzles. With the plug seated, no cooling water can reach the discharge nozzles. As the plug is extended by the actuator under the signals of the temperature control loop, cooling water is throttled at each exposed nozzle through flow charaterization slots located just prior to the discharge nozzles.

Our Desuperheaters Offers:

• Ring cooler with spring-loaded nozzles
• Venturi cooler with annular gap or nozzles (swirl atomization)
• Motive steam assisted desuperheater
• Multi-stage, controlled nozzle desuperheater