UPVC WAFER CHECK VALVE

UPVC Wafer Check Valve Manufacturer & Supplier in India. As a safety filter, sediment strainers are meant to catch any solid pollutants that may sometimes occur in the line.

We are the valve exports and other equipment with tiny orifices, such as pumps or control valves, are protected by this. The filter screen is simply changeable and available in a variety of meshes.

An oscillating disc is used to open or close the valve. As a result of their design, they may be installed in exceedingly tight places, where a flanged check valve would be ineffective.

As the disc opens, these valves have a moulded body surrounding the opening. In contrast, UPVC Wafer Check Valves have moulded bodies that enable the disc to fully swing open, enabling full flow.

In the case of applications that demand full flow, this is a critical consideration, as you can understand. Therefore, wafer check valves are used in situations where flow isn’t a concern. Swing check Valves are used in applications where a full port valve is needed.

UPVC Wafer Check Valve Technical Information

Technical Details
UPVC Pipe Fittings & Valves Products
Download Catalogue

The CR wafer check valve is designed to be installed directly between stubs and flanges in accordance with ISO/DIN standards.

• Installed with FIP QPV (d50 – d160) stubs and QRV stubs using flat gasket
QHV/Y (d225 – d315), on PVC piping class PN10 or lower with type ODV
flanges

• Metal support for easy and precise centring of the valve during installa-
tion

• Can be installed in either a vertical or horizontal position
• Sealing system with O-ring for optimum sealing and installation without
flat gaskets

Technical specifications
Construction	Wafer check valve
Size range	DN 40 ÷ 300
Nominal pressure	5 bar with water at 20 °C
Temperature range	0 °C ÷ 60 °C
Coupling standards	Flanging system: DIN 2501 PN 10, EN ISO 1452,EN ISO 15493
Reference standards	Construction criteria: EN ISO 16137 EN ISO 1452, EN ISO 15493 Test methods and requirements: ISO 9393 Installation criteria: DVS 2204, DVS 2221, UNI 11242
Valve material	PVC-U
Seal material	EPDM

PRESSURE VARIATION ACCORDING TO TEMPERATURE

For water e non-hazardous fluids with regard to which the material is classified as CHEMICALLY RESIS-TANT. In other cases, a reduction of the nominal pressure PN is required (25 years with safety factor).

PRESSURE DROP GRAPH

K_V 100 FLOW COEFFICIENT

The K_v 100 flow coefficient is the Q flow rate of litres per minute of water at a temperature of 20°C that will generate Δp= 1 bar pressure drop at a certain valve position. The Kv100 values shown in the table are calculated with the valve completely
open.

DN	40	50	65	80	100	125	150	200	250	300
Kv100l/min	370	900	1250	1867	2867	5700	8167	18800	25000	31900

MINIMUM PRESSURE REQUIRED TO OPEN THE VALVE IN A VERTICAL FLOW

DN	40	50	65	80	100	125	150	200	250	300
bar	0,002	0,003	0,003	0,003	0,003	0,003	0,005	0,005	0,008	0,008

MINIMUM VALVE SEALING PRESSURES

DN	40	50	65	80	100	125	150	200	250	300
bar	0,3	0,3	0,3	0,2	0,2	0,2	0,2	0,2	0,2	0,2

TIGHTENING TORQUE

*Tightening torques for nuts and bolts on couplings with backing rings. Values required to obtain the hydraulic test seal (1.5 x PN at 20°C) (new or lubricated nuts and bolts)

DN	40	50	65	80	100	125	150	200	250	300
Nm*	8	10	10	10	0	15	20	38	45	50

CROV

Wafer check valve in PVC-U/EPDM

d	DN	A	B	C	ISO/DIN	Di	OP	Z	g	*MOP(bar)	Code
50	40	72	25	28	95	22	0-5	16	160	6	CROV050E
63	50	86	37	29	109	32	0-5	20	260	6	CROV063E
75	65	105	50	31	129	40	0-5	20	330	6	CROV075E
90	80	119	61	32	144	54	0-5	20	400	6	CROV090E
110	100	146	77	31	164	70	0-5	22	560	6	CROV110E
140	125	173	94	35	195	92	0-5	23	760	6	CROV140E
160	150	197	100	40	220	105	0-5	25	1120	6	CROV160E
225	200	255	152	38	275	154	0-5	35	2130	6	CROV225E
280	250	312	180	41	330	192	0-5	40	3540	6	CROV280E
315	300	363	215	41	380	227	0-5	45	5350	6	CROV315E