Non Return Valve-DF41X-16Q

Basic parameters:

Brand Name:SICH
Place of Origin:Fujian, China
Model Number:DF41X-16Q
Connection:Flange
Sealing testing pressure:16 bar
Available Size:DN40--DN300
Body Material:Ductile QT450
Working pressure:1-1.6MPa
Applicable temperature:0℃-- 80℃
Material:Ductile Iron

Valve   body QT450
Valve cover QT450
Valve clack QT450
Valve ring QT450
Diaphragm NBR
Ball valve Brass
fastener 304

 

Product Description:

The non return valve is a hydraulic control combination device that strictly restricts the water in the pipeline to flow in one direction only when the backflow pollution of the tap water supply equipment, especially the drinking water pipeline is serious, and there is no effective device to prevent the backflow pollution. Its function is to prevent the backflow of the medium in the pipeline under any working conditions, so as to avoid backflow pollution. At present, the backflow preventer is mainly divided into two types: low-force backflow preventer and decompression type backflow preventer. According to the national standard, the head loss of the low-resistance non return valve is less than 3 meters, and the head loss of the decompression type non return valve is less than 7 meters.
1. The product has unique design, beautiful appearance, simple installation and convenient maintenance.
2. Double check and air partition to completely prevent backflow pollution under any working conditions
3. Accurate calculation, sophisticated processing, reliable performance and sensitive action.
4. Designed according to CJ/T 160-2002 standard
5. The inner and outer surfaces are sprayed with environmental protection coating to ensure the anti-corrosion and safety of the product
6. If the backflow preventer needs to be used in seawater, please specify when ordering

 

Features:

  • Flange End :ANSI150LB/GB Standard /BS Standard;
  • Steam Material :2CR13 /Stainless Steel;
  • Bonnet Material :Ductile Iron ,QT450;
  • Body Material :Ductile Iron ,QT450;
  • Seal Material :Ductile Iron ,QT450,NBR
  • Surface Finishing :Epoxy Red or Blue
  • Working Pressure :10/16 Bar

 

Technical parameter:

Size   (DN) 40 50 65 80 100 125 150 200 250 300
SH41H   Valve length(mm) 440 500 576 676 760 850 1040 1170
SDFQ4X   Valve length(mm) 230 290 310 350 400 480 600 730 750
Testing pressure(MPa) Valve 1.5--2.4
Sealing 1.1--1.76
Pressure(MPa) 1.0--1.6
Temperature 0--80℃
Media Water and Weak corrosive   fluid

 

Additional information

Brand Name :

SICH

Available Size:

DN40–DN300

Working pressure:

1-1.6MPa

Place of Origin:

Fujian, China

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