PCI-2019

Dual Plate Check Valve with SG Iron Disc PN 1.6

PCI-2019

Dual Plate Check Valve with SG Iron Disc PN 1.6

Product Overview

The Poline PN16 Dual Plate Check Valve with SG Iron Disc – Wafer Type is engineered for automatic backflow prevention in water, HVAC, fire fighting, industrial, and utility pipeline systems. Designed according to API 594, this compact wafer type valve occupies less space and weighs significantly less than conventional swing check valves.

The valve uses spring assisted dual plates for rapid closing action, reducing reverse flow and minimizing water hammer effects. Its cylindrical body construction distributes stresses evenly, while the streamlined flow path offers low pressure drop and improved system efficiency.

The SG Iron Disc construction provides strength and durability, making it suitable for demanding industrial service conditions.


Key Features

  • Designed as per API 594
  • Tested as per API 598
  • Wafer type compact design saves installation space
  • Dual plate spring assisted closing
  • Minimizes water hammer effect
  • Lower pressure drop than conventional swing check valves
  • SG Iron disc for strength and durability
  • Lightweight design reduces support requirements
  • Suitable for ANSI / ASME Class 125 / 150 flanges
  • Reliable backflow prevention

Technical Specifications

Parameter Details
Product Type Dual Plate Check Valve
Body Type Wafer Type
Pressure Rating PN16
Design Standard API 594
Testing Standard API 598
Disc Material SG Iron
End Compatibility ANSI Class 125 / ASME Class 150
Shell Test Pressure 24.50 kg/cm²g (300 psig)
Seat Test Pressure 16 kg/cm²g
Working Temperature Up to 80°C

Applications

The Poline Dual Plate Check Valve is widely used in:

  • Water supply systems
  • HVAC lines
  • Fire fighting systems
  • Pump discharge lines
  • Utility pipelines
  • Industrial process lines
  • Cooling water systems
  • Commercial infrastructure

Why Choose Poline Check Valves?

Poline Valves manufactures dependable non-return solutions designed for compact installation, efficient flow performance, and long service life. Our dual plate check valves help protect pumps and systems from reverse flow damage.


Frequently Asked Questions

1. What is a dual plate check valve?

A dual plate check valve uses two spring-loaded plates that open with forward flow and close automatically when flow reverses.

2. Why choose wafer type check valve?

Wafer type valves are compact, lightweight, and require less installation space.

3. How does it reduce water hammer?

The spring-assisted quick closing action helps minimize sudden reverse flow shock.

4. What does PN16 mean?

PN16 indicates a nominal pressure rating of 16 bar.

5. Where is this valve used?

It is commonly used in water, HVAC, fire systems, and industrial pipelines.


Request a Quote

For pricing, OEM supply, dealership enquiries, or bulk orders for PN16 Dual Plate Check Valve with SG Iron Disc – Wafer Type, contact Poline Valves today.

MATERIAL LIST
Part No Part Name Material Specification Qty
1 Body Cast Iron IS 210 Gr. FG 200 1
2 Body Lining Nitrile Rubber IS 5192-1 1
3 Flap / Disc S.G. Iron ASTMA 536 2
4 Hinge Pin Stainless Steel IS 6603 1
5 Stop Pin Stainless Steel IS 6603 1
6 Spring Stainless Steel IS 6603 -
7 Washer Stainless Steel IS 6603 -
8 Packing Washer Nitrile Rubber /PTFE IS 5192-1 -
9 Retainer Plug Carbon Steel - 2/4
10 Hook Carbon Steel IS 1367 -
SUITABLE FOR
GASES AIR STEAM OIL WATER
SIZE DESCRIPTION
Size (mm) A ±1.5 Ø B ØC
40 50 92 56
50 54 101 60
65 60 120 73
80 67 133 89
100 67 171 114
125 83 193 141
150 95 218 168
200 127 276 219
250 140 336 273.5
300 181 406 324
350 184 451 357
       

 

The information provided here serves as guidelines only and is subject to possible modification.
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