DIN PN16 CARBON STEEL OR STAINLESS STEEL PISTON VALVE BOLTED BONNET DESIGN

DESIGN DESCRIPTION:

* BOLTED BONNET AND WELDING BONNET;

* WELDING SEAT;

* INTEGRAL SEATS;

* HANDWHEEL OPERATOR;

* AVAILABLE WITH GEAR OPERATOR;

* FLANGED ENDS OR BUTT-WELDING ENDS;

* RISING FLANGE OR RING TYPE JOINT.

PRESSURE GRADE : PN16 PN25  PN40

SIZE :DN10-DN300

WORKING PRESSURE AND TEMPERATURE

CARBON STEEL: -29 C~425 C 6 F~822 F

STAINLESS STEEL :-40 C~550 C 15 F~1047 F

GENERAL DESIGN SPECIFICATIONS:

ITEM ;DIN PN 16  DIN PN 25   DIN PN 40

MANUFACTURE  : DIN 3356    DIN 3356       DIN 3356

FACE TO FACE  : DIN 3202 F1  DIN 3202 F1    DIN 3202 F1

END FLANGE  : DIN 2543       DIN 2544       DIN 2545

INSPECTION AND TEST;DIN 3230  DIN 3230     DIN 3230

TEST PRESSURE TO DIN 3230:

ITEM : PN 16  PN25  PN 40

DIN SHELL (WATER) : 2.4MPa     3.75MPa     6.0MPa

SEAT (WATER) :      1.76MPa    2.75MPa     4.4MPa

SEAT (AIR) :           0.6MPa    0.6 MPa     0.6MPa

BACK SEAT(WATER):  1.76MPa   2.75MPa   4.4MPa

PARTS AND MATERIAL (ASTM)

1 BODY  :A216WCB A352LCB A217WC1 A217WC5 A217WC6 A351CF8 A351CF8M A351CF3 A351CF3M

4 SEAT RIONG  :DUCTILE IRON A351CF8 A351CF8M A351CF3 A351CF3M

5 GASKET  :REINFORCED FLAT GRAPHITE,OR SS SPIREAL WOUND W/GRAPHITE

6 BONNET  : A216WCB A352LCB A217WC1 A217WC5 A217WC6 A351CF8 A351CF8M A351CF3 A351CF3M

7 BONNET BOLT:  A193B7  A320L7  A193B7  A193B16  A 193B16  A193B8  A 193B8  A193B8 A 193B8

8 BONNET BOLT NUT: A1942H  A1944  A1942H  A1944  A 1944  A1948  A 1948 A1948  A 1948

16 STEM NUT :A439-D2 OR A276-410

17 HANDWHEEL  :DUCTILE IRON

18 H.W.LOCK NUT : STEEL

OTHER MATERIALS ARE AVAILABLE UPON REQUEST.