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Monoflange Valve

Introduction

Monoflange Valve are a unique valve design that combines the functionality of a valve and a flanged connection in a single compact unit. These valves are typically used in applications where space and weight reduction are critical, as they eliminate the need for a separate flanged valve and associated flanges. The Monoflange design offers a simplified installation process, reducing installation time and cost while providing a reliable and leak-proof connection.

The design of the YDB Monoflange Valve is such that it reduces the number of potential leak paths to make your system more safe and compact. Monoflange valves will allow you to achieve significant weight reduction in the system and cost savings. Most operators prefer monoflange over traditional double block and bleed valves as it gives them weight and space advantages.

YDB Monoflange Valve are available in single block, block and bleed, block bleed block, and block block bleed. All YDB monoflange valves are factory tested.

Applications

Monoflange Valve is trusted across various industries for its precision, durability, and reliability. Explore its wide-ranging applications below:

Oil & Gas Industry icon

Oil & Gas Industry

Used in upstream, midstream, and downstream operations, Monoflange valves offer space-saving and cost-effective flow control solutions for pipelines and processing systems.

Chemical Processing Industry icon

Chemical Processing Industry

Ideal for compact systems handling corrosive chemicals and gases, Monoflange valves ensure reliable operation and leak-tight sealing with minimal space requirements.

Water Treatment Industry icon

Water Treatment Industry

Used in water filtration and distribution systems, Monoflange valves provide efficient flow regulation while reducing installation time and material costs.

Power Generation Industry icon

Power Generation Industry

Monoflange valves are perfect for power plants, where space and weight limitations require compact, reliable valves for steam, cooling water, and gas systems.

HVAC Systems icon

HVAC Systems

Used in HVAC systems for space-efficient fluid control, Monoflange valves offer a simple and reliable solution for regulating water and refrigerants.

Design Features

  • Compact Block, Block and Bleed assemblies with minimal potential leak points.
  • Compatible with ASME B16.5 Flange Connections from 1/2 inch to 2 inch (DN 15 to DN 50).
  • ANSI B16.5 150 to 2500 flange class and API 10000. Combined needle and OS&Y valves available.
  • Raised face and ring type joint flange face styles.
  • One piece forged construction flange as standard.
  • 4mm Needle valve orifice standard and for bigger orifice please contact us.
  • Anti-blow out valve stem.
  • Fire safe designed to meet BS 6755 part 2/API 607 NACE MR 0175/ISO 15156 compliant material available.
  • Standard material of construction: SS316, SS316L, Carbon steel, A105, Duplex.
  • Optional material: Super Duplex, Inconel, Hastelloy, 6Mo, Monel.

Technical Specifications

Process Monoflange

Process monoflanges replace the traditional isolation valve and are closely coupled to the process piping flange to connect process with instruments. Many markets have benefited from process monoflanges as they combine instrument and piping valves in a single unit. The standard connections for process monoflange are provided in accordance with the ASME B16.5.

Instrument Monoflange

Coupling of instrument monoflanges to a pre-installed isolation valve provides a compact instrument double block and bleed valve. The standard connections for instrument monoflange are provided in accordance with the ASME B16.5.

Applications

Monoflange valves are used in upstream onshore/offshore oil and gas production. They’re also used with gauge pressure instruments to minimize the weight and size of the pipe and valve assemblies used for vent, calibration and primary or/and secondary isolation.

The highly sophisticated design features of monoflange valves make them suitable for several other applications as well. These include:

  • Isolation service
  • Level measurement
  • Chemical injection
  • Sampling
  • Pressure measurement
  • Process to instrument interface
  • Chemical seal
  • Drains for pipes and tanks
  • Corrosive pressure media
  • Industrial process plants

Pressure Class

  • YDB monoflanger valves can handle pressure up to 10,000 psi (690 bar)
  • 150 to 2500 flange class
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YDB VALVES LLP

A pioneer manufacturer & supplier company having good experience in the designing and manufacturing of a new concept instrumentation Valves

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