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RTK Regeltechnik Kornwestheim
Steam-converting valves MV 5051/ PV 6051

Steam-converting valves MV 5051/ PV 6051

Product catalog summary

Overview: The document outlines the technical specifications and operational details for steam converting valves, specifically models MV 5351, MV 5451, PV 6351, and PV 6451. These valves are engineered to reduce steam pressure while cooling the steam.

Specifications:

Types: Available in electric (MV series) and pneumatic (PV series) versions.
Nominal Diameter: Ranges from DN 40 to 250.
Nominal Pressure: Ranges from PN 16 to 100.
Body Materials: Made from GP240-GH and G17CrMo5-5.
Flanges: Connections adhere to DIN 2501 and other standards.
Spindle Packing: Uses PTFE/graphite for temperatures up to 250°C and pure graphite for up to 530°C.
Cone Types: Features a perforated cone with equal percentage or linear characteristics.
Trim Materials: Options include stellited seats and hardened perforated cones.
Kvs Values: Detailed in Table 1.
Nozzle System: Includes RTK and hollow shaft nozzles for varying flow requirements.
Approvals: Certified by ATEX, GOST, and DGRL.

Functionality: The valves utilize a low-noise perforated cone to reduce steam pressure. Water is injected from below for effective atomization, independent of load. For minimal water flows, an injection nozzle replaces the pipe, ensuring complete evaporation and cooling a few meters beyond the valve.

Steam Cooling and Temperatures: Stable steam temperature control is achievable only above 5 K over the saturated steam temperature. Cooling water should ideally be above 100°C and not below 60°C to prevent damage and deposits.

Cooling Water Injection: RTK injection control valves are designed for high differential pressures, using high-quality materials for low Kvs values.

Pipeline Routing: Requires straight, uninterrupted sections before and after the valve for optimal performance and noise reduction. Proper drainage is essential.

Dimension Sheets: Provides detailed dimensions and weights for various configurations with actuators.

Actuator Compatibility: Compatible with actuators ST 6160.A6, ST 6160.C6, ST 6175.B6, and ST 6175.C6, with specific compatibility for valve sizes and pressure ratings, including detailed weight information for PN 40 configurations.

Spare Parts List: Includes a comprehensive list of spare parts for various valve models, detailing components such as body, seat ring, bonnet, cone assembly, spindle packing, and more, with materials like GP-240-GH, 1.4571, and other alloys, along with specific part numbers and descriptions.

Technical Notes: Indicates that technical specifications are subject to change, suggesting potential updates or modifications to the valve designs.

Catalog excerpts

Steam-converting valves MV 5051/ PV 6051-1

Dampfumformventile Steam converting valves Vanne de transformation de vapeur 5702-7010 Elektrische Baureihen Electric series Séries electriques • MV 5351 • MV 5451 Pneumatische Baureihen Pneumatic series Séries pneumatiques • PV 6351 • PV 6451 MV 5451 Dampfumformventile für die Druckreduzierung bei gleichzeitiger Dampfkühlung. • • • • • • 07/2012 Dampfdruckreduzierung und Kühlung in einer Armatur geräuscharmer Lochkegel Wassereinspritzung von unten großer Regelbereich Optimale Regelcharakteristik durch angepasste Innengarnitur für Dampf und Wasser Ventilgehäuse aus GP240-GH oder G17 CrMo55 Steam-converting valves reducing the steam pressure while simultaneously cooling the steam. • • • • • • Steam pressure reduction and cooling in one unit Low-noise perforated cone Water injection from below Wide control range Optimized control characteristic with adapted trim for steam and water Body material of GP240-GH or G17 CrMo55 Soupape de transformation de vapeur pour la détente et la désurchauffe simultanés. • • • • • • Détente et désurchauffe dans un seul robinet a soupape Clapet perfore relativement silencieux Injection d’eau par Ie fond Grande étendue de réglage Characteristique de réglage optimal par garniture siège/clapet adaptée pour de l´eau et de la vapeur Matériau du corps de la vanne en – GP240-GH ou G17 CrMo55r page 1

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Steam-converting valves MV 5051/ PV 6051-2

Dampfumformventile Steam converting valves Vanne de transformation de vapeur 5702-7020 Technische Daten Technical data Bauformen: Elektrisch Pneumatisch MV 5351 PV 6351 MV 5451 PV 6451 Nennweite: Nenndruck: DN 40..250 PN 16..100 Gehäuse- : werkstoffe GP240GH (PN16…100) G17CrMo5-5 (PN 63…100) Flansche: Anschluss nach DIN 2501; Dichtleiste DIN 2526 Form C; andere Flanschbearbeitung z.B. nach EN 1092 Dachmanschetten PTFE/Kohle (bis 250 °C) Presspackung Reingrafit (bis 530 °C) Spindelabdichtung: Kegelformen : (Kennlinie) Garniturwerkstoffe: Types: Caractéristiques techniques Types: Body materials:...

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Steam-converting valves MV 5051/ PV 6051-3

Dampfumformventile Steam converting valves Vanne de transformation de vapeur 5702-7030 Funktion Function Fonctionnement Der Dampfdruck wird durch einen geräuscharmen Lochkegel abgebaut. Das Kühlwasser wird von unten in den Lochkegel gespritzt. Dabei werden Austrittsbohrungen des Wasser- Einspritzrohres je nach Ventilhub vom Lochkegel abgedeckt. So wird eine stets gute und lastunabhängige Zerstäubung des eingespritzten Wassers erreicht. Für sehr kleine Wassermengen (kV- Wert der Wasserzerstäubung unter 0,45) und bei Sitzdurchmessern unter 50 mm, wird an Stelle des Einspritzrohres eine Einspritzdüse...

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Steam-converting valves MV 5051/ PV 6051

Steam-converting valves MV 5051/ PV 6051

Catalog excerpts

All RTK Regeltechnik Kornwestheim catalogs and technical brochures