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Tuf-Skin Valve
 
Tuf Check

 

Standard Specification

Type CV-C CV-D
Nominal Diameter Range 50 mm to 300 mm (2 in to 12 in)
Applicable Flange Standard JIS 10K, ANSI 125 lb JIS 20K
Service Pressure 10kgf/cm2 20kgf/cm2
Hydrostatic Seat Test 14kgf/cm2(200PSI) 14kgf/cm2(200PSI)
Hydrostatic Shell Test 25kgf/cm2(350PSI) 14kgf/cm2(200PSI)
Service Temperature Range NBR (BUNA-N) Seat Ring : 00 C - 800 C
EPDM Seat Ring : -300 C - 1200 C
VITON Seat Ring : 00 C - 1500 C
Face To Face Dimensions - API STANDARD 594
 
Design Feature
 
  • Wafer Design-Bodies are cast from high strength cast iron and ductile casting iron, easy installation, face-to-face dimension conform to minimum practicable laying lengths.
  • Spring Closing-Quick, reliable, silent action before pressure reversal takes place prevents slaming and water hammer. Tough, tempered 316SS torsion spring achieve high reliability and minimum pressure drop.
  • Swing Plates-Made from SCS13 high strength and better corrosive resistance.
  • Resilient Seat-The Check valve seat is constructed by bonding a resilient elastomer inside surface and the seat is widened to project outside the face to face width of the check valve body. Made up between flange faces, the extra rubber is compressed to form pressure-responsive seals against both flanges, Two concentric and project ribs, near the outside of each seat face, provide the flange seals against slip-on Hanges, Gasket are not required.

Application

  • This check valves designed for horizontal or vertical pipeline (flow upwards).
  • When the check valve is applied in a horizontal pipeline the check valve will be installed on the direction of the spring pin perpendicular to the liquid flow direction. It will ensure the pressure force apply on the swing plates are equal and balance.
  • For the reason of the bond layer laminate flow effect and reducing water head loss. The check valve should be installed at least 8 pipe calibers far from pumping equipment.
(Size) A B C D E
IN MM 10K 150 P
2" 50 96 72 46 54 32
2 1/2" 65 105 80 53 54 35
3" 80 128 91 69 63 42.5
4" 100 155 164 117 88 71 53
5" 125 187 141 112 79 65
6" 150 209 171 137 88 80
8" 200 268 226 188 96 107.5
10" 250 328 281 240 111 132
12" 300 375 388 327 276 134 154
(Size) A B C D E
IN MM 20K
2" 50 101 72 46 60 32
2 1/2" 65 121 80 53 67 35
3" 80 137 91 69 73 42.5
4" 100 162 114 88 73 53
5" 15 197 141 112 86 65
6" 150 235 171 137 98 80
8" 200 279 226 188 127 107.5
10" 250 353 281 240 146 132
12" 300 403 327 276 181 154
 
 
Tuf Valve
 
Standard Specification
 Model 97A 
 Nominal Size  2" (50mm) - 26" (650mm)
 Max Operating Pressure  232PSI (16kgf/cm2)
 150PSI (10kgf/cm2)
 Seat-Test  257PSI (18kgf/cm2)
 180PSI (12kgf/cm2)
 Shell-Test  342PSI (24kgf/cm2)
 225PSI (15kgf/cm2)
 Face to face  ISO-5752
 Mounting Flange  ISO-5211
 Material 
     Body  A126-B, A536
     Disc  A536, A351-CF8, A351-CF8M
     Seat  BUNA-N(NBR) (-100C to 1200C)
 EPDM (-200C to 1200C)
 VITON (-500C to 2300C)
     Shaft  AISI410, AISI304, AISI316
 Flange Standards  ANSI 125/150 lb
 DIN PN10, PN16
 JIS 5K, 10K, 16K
 
The shaft is made from stainless steel. In formal use, the shaft has a high safety coefficient and will not deform due to fluid pressure in a full pressure situation.

The shaft is fully ground to achieve a tight seal and smooth opening and closing action.
 
The streamlines of the disc design help flowing and increase CV value.
 
The rubber seat is replaceable. And two O-rings on the faces of the rubber seat make easy to pipeing without any packing sheet.
 
The mounting flange and shafts may assemble with worm gear operating: lever handle operating or electric actuator operating.
 
In accordance with operating pressure, the flange and bolt have been considered, when the different operating pressures such as (ANSI B16.5 125/150PSI, DIN2501 PN10, PN16, JIS B2210 5K, 10K, 16K ).
 
Range of valve applications :
 
  • Chemical engineering industry
  • Petrochemical industry
  • Power generating plants facilities
  • Waste water treatment plant
  • Food and beverage industry
  • Chemical industry
  • Other industries
  • Pulp and paper plants
  • Public works facilities
  • Water purification plants
  • Swimming pools
  • Brewing and distillation plants
  • Irigation
Tie-Rod and Bolt Dimension
 
UNIT : Inch for ANSI. mm for DIN;JIS.
Inch mm Tie-Rod Flange
ANSI 125/150 lb DIN PN10 DIN PN16 JIS 10K JIS 16K
2 50 Length 5/8" x 5 1/8" l M16 x 130 l M16 x 130 l M16 x 120 l M16 x 120 l
No. 4 4 4 4 8
2 1/2 65 Length 5/8" x 5 1/8" l M16 x 130 l M16 x 130 l M16 x 130 l M16 x 130 l
No. style="border:#000000 solid 1px"4 4 4 4 8
3 80 Length 5/8" x 5 1/8" l M16 x 140 l M16 x 140 l M16 x 130 l M16 x 140 l
No. 4 4 4 8 8
4 100 Length 5/8" x 5 1/8" l M16 x 150 l M16 x 150 l M16 x 130 l M16 x 150 l
No. 8 8 8 8 8
5 125 Length 5/8" x 5 1/8" l M16 x 150 l M16 x 150 l M16 x 150 l M16 x 160 l
  8 8 8 8 8
6 150 Length 5/8" x 5 1/8" l M16 x 160 l M16 x 160 l M16 x 160 l M16 x 160 l
  8 8 8 8 12
8 200 Length 5/8" x 5 1/8" l M16 x 170 l M16 x 170 l M16 x 160 l M16 x 170 l
  8 12 12 12 12
10 250 Length 5/8" x 5 1/8" l M16 x 190 l M16 x 190 l M16 x 180 l M16 x 180 l
  12 12 12 12 12
12 300 Length 5/8" x 5 1/8" l M16 x 190 l M16 x 200 l M16 x 190 l M16 x 200 l
  12 12 12 16 16
14 350 Length 5/8" x 5 1/8" l M16 x 190 l M16 x 220 l M16 x 220 l M16 x 220 l
No. 12 16 16 16 16
16 400 Length 5/8" x 5 1/8" l M16 x 230 l M16 x 240 l M16 x 220 l M16 x 250 l
No. 16 16 16 16 16
18 450 Length 5/8" x 5 1/8" l M16 x 230 l M16 x 250 l M16 x 240 l M16 x 260 l
No. 16 20 20 20 20
 
UNIT : Inch for ANSI. mm for DIN;JIS.
Inch mm Tie-Rod & Bolt Flange
ANSI 125/150 lb DIN PN10 DIN PN16 JIS 10K JIS 16K
20 500 Tie-rod Length 1 1/8" x 12" l M22 x 250 l M22 x 250 l M22 x 250 l M22 x 250 l
No. 12 16 16 16 16
Bolt Length 1 1/8" x 12" l M22 x 250 l M22 x 250 l M22 x 250 l M22 x 250 l
No. 8 8 8 8 8
24 600 Tie-rod Length 1 1/8" x 12" l M22 x 250 l M22 x 250 l M22 x 250 l M22 x 250 l
No. 16 16 16 20 20
Bolt Length 1 1/8" x 12" l M22 x 250 l M22 x 250 l M22 x 250 l M22 x 250 l
No. 8 8 8 8 8
26 650 Tie-rod Length 1 1/8" x 12" l - - M22 x 250 l M22 x 250 l
No. 20 - - 20 20
Bolt Length 1 1/8" x 12" l - - M22 x 250 l M22 x 250 l
No. 8 - - 8 8