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Manual Blind Plate Valve

Manual Blind Plate Valve

Manual Blind Plate Valve

Carbon Steel (WCB, WCC for strength), Stainless Steel (SS304, SS316 for corrosion resistance)

Size Range:DN300-DN1800

Connection Options:Flanged

Working Pressure:Up to 300 psi (20.7 bar)

Working Temperature:-29°C to 200°C

Sealing Options:EPDM, PTFE, Metal-to-Metal, NBR, FKM

Manufacturing Method:Cast, Forged, Machined

Applicable Medium:Water, Oil, Gas, Air, Chemical Fluids

Manufacturing Standard:API 609, ASME B16.47, MSS-SP-67, BS EN 593, ISO 5752

Product Overview

A Blind Plate Valve is a specialized valve designed to provide a secure, full shut-off in pipeline systems. It features a solid plate or “blind” that can be inserted or removed to either block or allow flow, making it ideal for isolating sections of piping for maintenance, inspection, or safety purposes. Commonly used in industries like petrochemicals, oil and gas, and power generation, the blind plate valve offers reliable sealing, is easy to operate, and provides a straightforward, cost-effective solution for flow isolation in high-pressure or hazardous environments.

Product Features

Quick Operation: Butterfly valves can be opened or closed quickly, often using a lever or actuator, allowing efficient flow control. This is particularly beneficial in industries like HVAC systems, fire protection systems, and chemical processing, where rapid flow adjustments are essential.

Low-Pressure Drop: The streamlined disc design ensures minimal resistance to flow, reducing pressure drop across the valve.

Compact and Lightweight: Butterfly valves are smaller and lighter compared to other types of valves, making them easy to install and maintain.

Versatile Connection Options: Available in wafer, lug, flanged, double flanged, and grooved connections to accommodate a wide range of piping configurations.

Resilient or Metal Seat Options: Offers both soft seats (e.g., EPDM, PTFE) for low-pressure applications and metal seats for higher temperatures and pressures.

Manual or Actuated Operation: Can be operated manually using a lever or automated with electric, pneumatic, or hydraulic actuators.


Blind Flange Valve Diagram

Specification Parameters

Structural Length Standard:
According to API 609, ASME B16.47, ISO 5752, BS EN 558

Connection Forms Standards:
Wafer and lug types per ASME B16.5, flanged per ANSI/ASME B16.42, double flanged, and grooved

Available Sizes (Caliber):
DN300-DN1800

Pressure-Temperature Rating:
Class 150, 300 as per API 609 and ASME B16.47

Pressure Range:
Up to 300 psi depending on size and material

Temperature Range:
-29°C to 200°C depending on material and sealing options

 

The main shape and connection size

DN

D

D1

b

n-φd

L

300

440

395

18

12-φ22

500

350

490

445

18

12-φ22

600

400

540

495

24

16-φ22

600

450

595

550

24

16-φ22

600

500

645

600

26

20-φ22

600

600

755

705

26

20-φ26

600

700

860

810

26

24-φ26

600

800

975

920

35

24-φ30

800

900

1075

1020

35

24-φ30

800

1000

1175

1120

35

28-φ30

800

1100

1275

1220

35

36-φ30

800

1200

1375

1320

35

32-φ30

800

1300

1475

1420

35

36-φ30

800

1400

1575

1520

35

36-φ30

800

1500

1675

1620

35

36-φ30

850

1600

1790

1730

35

40-φ30

850

1800

1990

1930

35

44-φ30

1100


Specification Applications

Industries

  • Oil and Gas: Used to isolate sections of pipelines during maintenance, repairs, or emergencies, ensuring safety and preventing leaks of hazardous fluids.
  • Petrochemicals and Refineries: Helps in securely shutting off process lines, facilitating safe maintenance and inspection without risking contamination or exposure to volatile chemicals.
  • Power Generation: Ensures safe shutdown of pipelines carrying steam, water, or fuel, providing isolation during turbine or boiler maintenance.
  • Chemical Processing: Used to prevent cross-contamination and to isolate sections for cleaning, as it effectively blocks the flow of potentially harmful chemicals.
  • Water Treatment: Assists in isolating sections of water treatment pipelines for maintenance, cleaning, or replacement, ensuring smooth operational flow.
  • Pulp and Paper: Ideal for isolating sections of pipelines in pulp processing and paper manufacturing, providing a reliable shut-off when needed.

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

Flow Control

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