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  "Trine" Wafer Check Valves
 
     
 
"Trine" wafer design Check Valves (NRV) are especially designed for Low Pressure Applications, where min. pressure drop is desired.
  
 
Size Range MM   : 40 - 1000

Pressure Range : PN 10 to PN 100

Application In Use : Oil, Air, Gas & Water, Largely used in Sugar, Distilleries; Paper; Cement; All chemical & Petrochemical Industries, Thermal power stations, Air conditioning plants, Fire Protection systems, Municipal water systems;Natural Gas utilities etc.

 "Trine" Wafer Check Valves
 
  General Features : (Advantages over conventional check valves)  
1.
Reduced space just 6% as that of conventional valve.
2.
Compact & Light weight (1/6th the weight of conventional valves).
3.
Ideal for low opening pressure ¨ High Resistance.
4. Minimum Pressure Loss.
5. High Cv Values.
6. Eliminates use of Gasket between Flanges.
7.
Low Price.
Temperature : Minus (-) 20 deg.C. to plus 240 deg. C.
Test Pressure : 6 - 100 kg/cm2
Mounting : Suitable for Horizontal & Vertical Mounting.
Material Of Construction :
1.
Body & Disc : Graded Cast Iron, Ductile Iron, Cast Carbon Steel (Grade WCB) Cast Stainless Steel (AISI 304/316).
2.
Disc Sealing Ring & Body Sealing Rings : Nitrile; EPDM; Neoprene, Silicon; Hypalon, Polyurethene; Viton & PTFE. Valves can also be provided with PVDF (Teflon) & rubber lining.
Metal to Metal seat is also available on request to withstand High Temperature :
1.
For pulsating flow normally spring loaded is recommended.
2. Replaceable seats placed in dove tail groove of disc.
3.
For Higher pressures discs are provided with compensation holes to avoid pressure build up behind "O" Ring.
Installation :
Suitable for mounting between various flange Stds. ASA 150 - 300, DIN & IS Stds. When installing a Check Valve on the delivery side, do not assemble it directly on to the pump flange or on to a following bend or elbow. The valve may be fitted at a distance of 7 to 10 times the nominal width, from the beginning of the stabilised zone.
 
  Size in mm A B
Type-C		 B
Type-CS
Spring Loaded		   APPX. WT/KG
50 27 13.5 19 1.5
65 39 13.5 19 2.0
80 49 13.5 19 2.5
100 70 13.5 23 3.0
125 92 15 23 4.0
150 115 18.5 24 6.0
200 144 28 31 14.0
250 192 28 31 18.0
300 220 38 39 27.0
350 268 39 41 42.0
400 209 49 51 60.0
450 359 49 51 74.0
500 409 59 59 116.0
600 486 69 69 178.0
 
Values vary with pressure rating. Please feel free to ask for details.
 
     
   
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