Cvkr Large Diameter Silent Check Valve

• Media: Water-Vapour Oil
• Temperature: Low Temperature
• Material: Stainless Steel Carbon Steel Brass
• Connection Form: Flange Welding
• Structure: Swing
• Pressure: High Pressure, Medium Pressure and Low Pressure
• Model NO.: CVKR
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Hard Seal and Soft Seal
• Flow Direction: Unidirection
• Standard: DIN GB ANSI Bsw JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

The silent check valve is installed at the outlet of the pump, which can be quickly closed before the water backflow to avoid water hammer, water percussion and destructive impact, so as to achieve the purpose of silence, prevent backflow and protect the equipment. Widely used in water supply and drainage, fire fighting, HVAC, industrial and other systems
CVKR silent check valve main technical parameters
Nominal pressure: 1.0 ~ 2.5MPa
Nominal passage: 300 ~ 1200mm
Applicable media: water, oil, sea water, sewage
Applicable temperature: 0 ~ 80ºC
Flange standard: GB/T17241.6JB/T79, GB/T9113
Test standard: GB/T13927, API598
CVKR mute check valve main parts materials
Main parts materials
Part name material
Body cast iron, ductile iron, carbon steel
Deflector cast iron, ductile cast iron, carbon steel
Valve seat bronze, chromium stainless steel
Disc bronze, 25# steel + Chrome stainless steel
Shaft bronze, chrome stainless steel
Spring stainless steel
Main overall dimensions (flange drilling according to GB/T17241.6-1998 standard)
Nominal diameter D1 D2 D3 N-φD L
1.0MPa 1.6MPa 1.6MPa 1.6MPa 1.6MPa 1.6mpa 1.6mpa
CVKR-0300 DN300 370 400 410 460 12-13 12-28 181
CVKR-0350 DN350 429 460 470 520 16-23 16-28 184
CVKR-0400 DN400 480 515 525 580 16-28 16-31 191
CVKR-0450 DN450 530 565 585 640 20-28 20-31 203
CVKR-0500 DN500 582 620 650 715 20-28 20-34 219
CVKR-0600 DN600 682 725 770 810 840 20-31 20-37 222
CVKR-0700 DN700 794 840 840 895 910 24-31 24-37 280
CVKR-0800 DN800 901 950 950 1015 1025 24-34 24-40 356
CVKR-0900 DN900 1001 1050 1050 1125 1125 28-40 28-40 368
CVKR-1000 DN100 1112 1160 1170/DIV> 1230 1255 28-43 28-43 432
CVKR-1200 DN120 1328 1380 1390 1455 1485 32-49 32-49 524