“4Matic” offers disc check valve (wafer type) especially for chemical, Food processing, Pharmaceuticals, Pulp and Paper, Textiles, Power generation, Refrigeration & Air Conditioning etc. The valves are used in Oil lines, Processing line, Hot and cold water systems, steam and condensates, Gas lines etc.

Size Range : 1/2″ to 4″ Screwed

Size Range : 1/2″ to 12″ Wafer Type

Operation

Disc Check Valves are opened by the pressure of the fluid and closed through compression spring a soon as flow stops thus preventing reverse flow.

Standard

Designed and Manufactured in accordance with BS 7438

Silent Features

  • Disc Check Valve is an advance design which gives full flow and occupy very less space than other type of Non Return Valve. This also available IBR Certificate in Form III C.
  • DCVs are simple to fit between tow pipe flanges.
  • Spring loaded disc to prevent reverse flow in pipe lines.
  • Compact Design of Valves flexibly accommodates various types of flange selection.n Stronger, lighter and smaller than conventional swing check valves, hence less expensive to install and maintain.
  • The valves can be fitted in any plane / direction in pipe lines.
  • Available in 15 mm to 300 mm sizes
  • Extremely low operating pressure.
  • Self centering type design.
  • Zero leakage for soft seated valves
  • Testing : As per API 598.
Technical Specifications
Pressure Maximum Operating Pressure 20 Bar
Temperature Maximum Operating Temperature 300 OC
Flange Standard 1. BS 10 Table D, E & H ( 65 NB & 80 NB will not be fitted between ‘E’ Flanges )
2. DIN : PN 6, 10, 16, 25, 40
3. JIS 5, 10, 16, 20 ( 40 NB, 50 NB, 80 NB & 100 NB will not be fitted between JIS 5 Flanges )
This Specification Wafer Type DCV
No. Description Material Qty.
01 Body WCB / CF8 / CF8M 01
02 Disc CF8M 01
03 Retainer CF8 / CF8M 01
04 Spring S. S. 304 / 316 01
05 Stopper CF8 01
This Specification Size 1/2″ to 1″ S/E
No. Description Material Qty.
01 Body CF8 / CF8M 01
02 Connector CF8 / CF8M 01
03 Disc S. S. 304 / 316 01
04 Spring Spring Steel 01
05 Retainer S. S. 304 01
06 Body Seal PTFE 01
This Specification Size 1.1/4″ to 2″ Lug Type Design
No. Description Material Qty.
01 Body CF8 / CF8M 01
02 Connector CF8 / CF8M 01
03 Disc S. S. 304 / 316 01
04 Spring Spring Steel 01
05 Retainer S. S. 304 01
06 Body Seal PTFE 01
07 Hex Bolt S. S. 304 04
08 Hex Nut S. S. 304 04
Dimensions : (All Dimensions are in mm)
Model Valve Size ØA ØB ØC ØD T L Weight
Wafer Type
MM Inch
4M-DNRV – 15 15 1/2″ 43 29 15 37 16 60 0.115
4M-DNRV – 20 20 3/4″ 53 35 20 44 19 70 0.183
4M-DNRV – 25 25 1″ 63 44 25 55 22 80 0.284
4M-DNRV – 32 32 1.1/4″ 74 53 32 67 28 90 0.489
4M-DNRV – 40 40 1.1/2″ 85 66 39 78 32 101 0.650
4M-DNRV – 50 50 2″ 95 77 49 92 40 115 1.088
4M-DNRV – 65 65 2.1/2″ 115 98 64 107 46 142 1.200
4M-DNRV – 80 80 3″ 133 110 79 127 50 153 1.700
4M-DNRV – 100 100 4″ 155 129 100 142 60 184 2.550
4M-DNRV – 125 125 5″ 192 161 125 184 90 245 7.600
4M-DNRV – 150 150 6″ 223 191 150 223 105 —- 9.400
4M-DNRV – 200 200 8″ 279 249 198 279 143 —- 15.900
4M-DNRV – 250 250 10″ 340 306 250 338 140 —- 29.100
Dimensions (All Dimensions are in mm)
Valve Model Valve Size F TH ØA Weight
MM Inch S / E
4M-DNRV – 15 – SD 15 1/2″ 55 1/2″ 15 0.400
4M-DNRV – 20 – SD 20 3/4″ 60 3/4″ 20 0.640
4M-DNRV – 25 – SD 25 1″ 68 1″ 25 0.955
4M-DNRV – 32 – SD 32 1.1/4″ 76 1.1/4″ 32 1.425
4M-DNRV – 40 – SD 40 1.1/2″ 81 1.1/2″ 38 1.972
4M-DNRV – 50 – SD 50 2″ 93 2″ 49 2.666

Operating Pressure : in m bar Diffferential Pressure With Zero Flow

15 MM 20 MM 25 MM 40 MM 50 MM 65 MM 80 MM 100 MM 125 MM 150 MM 200 MM 250 MM
25 25 25 28 29 30 31 33 ON REQUEST
22.5 22.5 22.5 24.5 24.5 25 25.5 26.5 ON REQUEST
20 20 20 20 20 20 20 20 ON REQUEST

 

→  Indicates Flow Direction

The Valves can be installed, without spring in vertical pipe line with bottom to top flow, Where lowest opening pressures are required .

Without Spring

15 MM 20 MM 25 MM 40 MM 50 MM 65 MM 80 MM 100 MM 125 MM 150 MM 200 MM 250 MM
2.5 2.5 2.5 3.5 4 4.5 5.5 6.5 ON REQUEST

 

→  Indicates Flow Direction