150mm DI Dual Plate Wafer Type Check Valve

150mm DI Dual Plate Wafer Type Check Valve PN 16 1082A Zoloto

 

Salient Features

• Design Reference Standard API 594.
• Wafer Type Design, to take lesser space than the conventional Check Valve.
• Being light in weight, is more rigid than the standard Swing Type Check Valve, which
  needs expensive foundation and special supports.
• Being cylindrical body, stresses are uniformly distributed.
• Much longer seat life because of S.S to Rubber contact.
• Less wear and tear of seat surfaces.
• End connections are designed to suit flanges drilled to ANSI B Class-125 / ASME B
  Class-150.
• Water hammering effect is minimized in this design, since the closing of valve does not depend upon any back pressure or flow.
• Each plate being half of the size of the swing check valve disc, provides straight flow
  path offering minimal resistance because of the spring’s assistance as closing of the
  valve initiates as soon as flow velocity dips below the designated minimum velocity.

Test Pressure (Hydrostatic) :
Shell : 24 bar
Seat : 17.6 bar
Maximum Working Temperature : -18°C to 80°C

Suitable For
Water

Materials

P.No.	Name of Part	Material of Construction	Specification	Qty.
1	Body	Ductile Iron	IS 1865 Gr. 400 / 15	1
2	Body Lining	Nitrile Rubber	IS 5192 – 1	1
3	Flap / Disc	Stainless Steel / Bronze	ASTM A 351 Gr. CF8	2
4	Hinge Pin	Stainless Steel	ASTM A 276 Type 304	1
5	Stop Pin	Stainless Steel	ASTM A 276 Type 304	1
6	Spring	Stainless Steel	Type 304	–
7	Packing Washer	PTFE	– – –	–
8	Packing Washer	Nitrile Rubber	IS : 5192-1	–
9	Retainer Plug	Carbon Steel	– – –	2/4

 

Sizes / Dimensions

Size (Inches)	Size (mm)	A±1.5	ØB±2	ØC±2
1 1/2	40	50	92	66
2	50	54	101	66
2 1/2	65	60	120	81
3	80	67	132	95
4	100	67	170	118
5	125	83	192	146
6	150	95	218	171
8	200	127	275	225
10	250	140	335	274
12	300	181	405	310
14	350	184	447	360
16	400	191	510	411
18	450	203	544	450
20	500	213	601	506
24	600*	222	713	625