PTFE Lined Wafer Check Valve

PTFE Lined Wafer Check Valve Specification

Material
SGI

Connection Type
Wafer Type (Sandwiched between flanges)

Valve Size
25NB to 400NB

Valve Type
Non-return / Check Valve

Structure
Wafer Type, Swing Check

Sealing
PTFE / FEP / PFA / Teflon Lined

Application
Corrosive chemical processes, pharmaceuticals, water treatment, and food industries

Type
PTFE Lined Wafer Check Valve

Power
Manual (Non-powered)

Size
25NB to 400NB

Pressure
Up to 10 Bar (Standard)

Media
Acidic, Alkaline, Corrosive Fluids, Water, Chemicals

Product Type
Lined Wafer Check Valve

Port Size
25NB to 400NB

Color
As Per Requirements

Temperature
-20C to +180C

Disc
Stainless Steel/PTFE/FEP Lined Disc

Leakage Class
Class VI, Zero Leakage

End Connection
Wafer Flanged as per ASME B16.5 (Class 150/300), DIN/BS available

Face to Face Dimension
As per ANSI B16.10/ DIN/BS standards

Mounting Orientation
Sandwich type, between two flanges

Installation
Horizontal/Vertical (Upward flow)

Gasket Compatibility
PTFE/Non-asbestos

External Coating
Epoxy Painted for better corrosion protection

Body Test Pressure
1.5 times rated pressure

Seat Test Pressure
1.1 times rated pressure

Standards
Design as per API 594

Lining Thickness
Minimum 3 mm (Uniform)

PTFE Lined Wafer Check Valve Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash Against Delivery (CAD), Cash Advance (CA), Cheque

Delivery Time
5-10 Days

Main Domestic Market
All India

About PTFE Lined Wafer Check Valve

Swing Type PTFE Lined Wafer Check Valve is suitable to mount between two flanges of ANSI B 165 and are ideal for use in totally lined piping system in corrosion application This valve can be mount in either direction The angled seat allows the valve to be installed in both horizontal and vertical applications

Outstanding Chemical Resistance and Zero-Leakage Performance

Designed for rigorous duty in corrosive chemical and process media, this check valve boasts a uniform 3 mm PTFE lining and Class VI sealing, delivering absolute zero leakage. The non-return swing check mechanism ensures dependable prevention of backflow, while compatibility with various aggressive fluids provides versatile system protection.

Easy Installation and Broad Compatibility

The valve utilizes a wafer-type design, making it simple to install between standard flanges per ASME B16.5 (Class 150/300), DIN, and BS standards. With both horizontal and vertical (upward flow) mounting options, it is adaptable to various pipeline configurations and ensures a secure, leak-free fit.

FAQs of PTFE Lined Wafer Check Valve:

Q: How do I install the PTFE Lined Wafer Check Valve in my pipeline?

A: The valve is designed for sandwich-type mounting between two flanges, compatible with ASME B16.5 (Class 150/300), DIN, and BS standards. It can be installed in horizontal pipelines or vertically for upward flow, making it highly versatile for different system layouts.

Q: What benefits does PTFE lining provide in this valve?

A: The minimum 3 mm uniform PTFE lining offers exceptional chemical resistance, preventing corrosion and contamination when handling aggressive acids, alkalis, and other hazardous fluids. This ensures durability and extends the valves operational life.

Q: When should I consider using this valve in my process system?

A: Consider this valve for applications involving corrosive chemical processes, pharmaceuticals, water treatment, or food industries where non-return functionality, zero leakage, and chemical compatibility are critical for safety and efficiency.

Q: Where can the PTFE Lined Wafer Check Valve be utilized?

A: It is suitable for installations in chemical processing plants, pharmaceutical manufacturing, water treatment facilities, and food-grade applications, particularly where aggressive fluids require robust isolation and backflow prevention.

Q: What testing standards are followed to ensure valve reliability?

A: The valve is designed according to API 594. It undergoes body test pressure at 1.5 times the rated pressure and seat test at 1.1 times the rated pressure, ensuring full compliance and guaranteed performance under demanding conditions.

Q: What types of sealing options are available?

A: Sealing is available in PTFE, FEP, PFA, or Teflon-lined options, each providing optimum leakage protection and compatibility with a wide range of aggressive media, enhancing safety and service reliability.

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