Diaphragm Pressure Reducing Valve

Name: Diaphragm Pressure Reducing Valve
Brand: CHINTAN ENTERPRISE
Price: 100-300000 INR
Availability: InStock

Price 100-300000 INR/ Unit

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Diaphragm Pressure Reducing Valve Specification

Material
Cast Iron/SS304/SS316/Brass

Valve Size
15mm to 200mm (1/2 to 8)

Control System
Spring Controlled

Valve Type
Diaphragm Type

Connection Type
Flanged or Screwed

Structure
Diaphragm Operated

Sealing
EPDM or NBR

Application
Water Supply Systems, Steam, and Chemical Processing

Type
Pressure Reducing Valve

Power
Manual

Pressure
Up to 16 Bar

Media
Water, Steam, Oil, Air

Port Size
DN15 to DN200

Disc
Stainless Steel/Brass

Pin
Stainless Steel Pin

Diaphragm Pressure Reducing Valve Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
100 Units Per Month

Delivery Time
1 Week

Main Domestic Market
All India

About Diaphragm Pressure Reducing Valve

Diaphragm Pressure Reducing Valve

HYDRAULIC FEATURES

Models suitable to reduce pressure (max 16 bar).

TECHNICAL FEATURES

Max inlet working pressure: 16 bar
Setting: min. 1, 5 max 7 bar
Variation % of the setting changing the inlet pressure: ± 5%
Max temperature (water): 80^oC
Pre-setting: 3 bar
Threading for waterworks: UNI ISO 228/1
Manometer joint: ISO 7/1

CONSTRUCTION

Sizes 3/8" - 1" in brass UNI EN 12165 - CW617N
Sizes 1"1/4 - 2" in brass UNI EN 1982 - CB753S
NBR diaphragm with textile inserts
Seat washers and washers in NBR rubber
Stainless steel seat AISI 303

Wide-Ranging Applications

Designed for versatility, the diaphragm pressure reducing valve can be employed in various sectors, such as municipal water supply, steam distribution networks, and chemical processing facilities. Its capacity to handle multiple media types makes it an essential choice for fluid management in both large-scale industrial plants and smaller installations.

Durable and Reliable Construction

Engineered using high-quality materials like cast iron, stainless steel (SS304/SS316), and brass, the valve ensures a long operational life. The use of robust EPDM or NBR seals and stainless steel or brass discs increases its resistance to corrosion and wear, making it suitable for demanding environments and aggressive media.

Flexible Sizing and Control Options

With port sizes available from DN15 to DN200, this valve fits a broad array of pipework configurations. The spring-controlled mechanism ensures precise manual pressure control, while connection optionsincluding flanged or screwed typesoffer adaptability during system integration or retrofitting projects.

FAQs of Diaphragm Pressure Reducing Valve:

Q: How does a diaphragm pressure reducing valve function in water supply and steam systems?

A: A diaphragm pressure reducing valve automatically maintains a preset downstream pressure by modulating a spring-loaded diaphragm, which adjusts the valve opening according to fluctuating inlet pressures. This ensures consistent pressure in water supply and steam systems, protecting downstream equipment and piping from excessive pressure.

Q: What are the key benefits of using a diaphragm-operated pressure reducing valve?

A: Using a diaphragm-operated valve provides smooth, stable pressure control, minimizes maintenance due to fewer moving parts, and effectively handles a variety of mediasuch as water, steam, oil, and air. Its robust sealing (EPDM or NBR) and corrosion-resistant construction further enhance operational longevity and reliability.

Q: Where should diaphragm pressure reducing valves be installed within a pipeline system?

A: These valves are best installed at points where there is a critical need to reduce and regulate pressure, such as just downstream of pumps, at the entry to individual process lines, or before sensitive equipment. Proper placement is essential for maintaining safe, constant pressure throughout the system.

Q: What materials are available for the valve components, and how do I choose the right one?

A: The valve is available in cast iron, SS304, SS316, and brass, with disks/pins in stainless steel or brass. Selection should be based on the media (water, chemical, steam), required corrosion resistance, and system pressure. Stainless steel is preferred for corrosive or high-temperature media; cast iron works well for water where corrosion is less significant.

Q: When is a flanged connection preferred over a screwed connection for these valves?

A: Flanged connections are ideal for larger sizes (above DN50) or higher-pressure systems (up to 16 bar), ensuring secure installation and easier maintenance. Screwed connections are typically used for smaller sizes and lower-pressure applications, where rapid installation is needed.

Q: What is the typical process for adjusting the downstream pressure setting?

A: Pressure adjustment is performed manually by turning the spring-loaded control. The valve should be adjusted while monitoring the downstream pressure gauge, ensuring the system operates within safe, optimal limits for the specific application and media.

Q: Can this valve be used for both clean and aggressive media in chemical processing?

A: Yes, provided the appropriate material combination and seal type is selected. For aggressive chemicals, SS316 material and chemical-resistant seals (EPDM or NBR, depending on compatibility) are recommended to ensure the valve withstands harsh process conditions.

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