Danfoss NVD 462 Data sheet

Data sheet

Non return Valve - Danfoss NVD 462

Description		Features:
		• Operates in any position
		• Silent, reliable sealing, compact
		•	Exceptional robustness
		• Notch provided for cable to submerged
			pumps up to DN 100
		• Closing system : long back axial guiding
		• Sealing guaranteed by O-ring.
		•	Return spring
		• Body with integrated one-arm guide

Main Data:

•	DN 50 - 200
•	kVS 69 - 1031 m3/h
•	PN 16 (10)
•	Medium:
	- Circulation water, drinking water or chilled
	glycolic water up to 50%
•	Medium Temperature:
	- 10 … 100 °C
•	Flanged connection
• Compliance with Pressure Equipment
	Directive 2014/68/EU

• Face-to-face dimensions according to EN558-1 14 series

• Approvals:

Ordering

Note:

The indicated pressure for the different categories of fluids (L1/ L2/G1/G2) is under no condition a guarantee of use.

Therefore, it is essential to validate the use of products under given operating conditions.

DN	Kv	PN	PFA (bar)			PS (bar)			Code No.
	(m3/h)			L1	L2		G1	G2
50	69						16		065B7485
65	125						15		065B7486
80	157	10/16	16	16	16		12	16	065B7487
100	350						10		065B7488
125	582						0.5		065B7489
150	710			13			0.5		065B7490
200	1031	10	10	10	10		0.5	10	065B7491

Dimensions

DN	B	D	Weight
	(mm)	(mm)	(kg)
50	150	165	6.7
65	170	185	9.3
				<![if ! IE]> <![endif]>B
80	180	200	10.9
100	190	220	14.3
125	200	250	20.9
150	210	285	27.7
200	230	340	40.7						D

© Danfoss | 2019.04

VD.BO.J2.02 | 1

Data sheet	Danfoss NVD 462
Design
		Pos.	Description	Material	EURO	ANSI
		1	Casing	Cast iron	EN-GJL-250	ASTMA4835B
		2	Ring	Bronze	CuSn5Zn5Pb2-C	−
		3	Spring	Stainless steel	X10CrNi18-8	AISI 420
		4	O-ring	EPDM	−	−
		5	Cloasing	Brass	CuZn39Pb2	−
			sistem
		6	Steam	Bronze	CuSn5Zn5Pb2-C	−
		7	O-ring	EPDM	−	−

Headloss diagram

	DN	Opening pressure	Kv	ζ
		(mm)	(m3/h)
	50		69	2.1
	65		125	1.8
	80	between	157	2.65
	100		350	1.3
		50 and 200
	125		582	1.15
	150		710	1.6
	200		1031	2.4

Direction for use :

•Solid line : Valve completely open

•Dotted line : opening stage of valve

	P
<![if ! IE]> <![endif]>PSI	<![if ! IE]> <![endif]>M/CE	<![if ! IE]> <![endif]>M/WC		DN								<![if ! IE]> <![endif]>50			<![if ! IE]> <![endif]>65	<![if ! IE]> <![endif]>80			<![if ! IE]> <![endif]>100		<![if ! IE]> <![endif]>125 150		<![if ! IE]> <![endif]>200
15	10
	8
10	7
8	6
	5
7
6	4
5	3
4
3	2
2	1.5
	1
	.8
1	.7
	.6
	.5
	.4
	.3
	.2
	.15
		3	4	5	6	8	10	15	20	25 30	40	50 60		80	100			200	300	400	600			1000	1500			2500	DEBIT M3/H
		10	15	20		30	40	50 60	80	<![if ! IE]> <![endif]>100	<![if ! IE]> <![endif]>150	<![if ! IE]> <![endif]>200	<![if ! IE]> <![endif]>250	<![if ! IE]> <![endif]>300	<![if ! IE]> <![endif]>400	<![if ! IE]> <![endif]>500	<![if ! IE]> <![endif]>600	<![if ! IE]> <![endif]>700 800	<![if ! IE]> <![endif]>1000	<![if ! IE]> <![endif]>1500	<![if ! IE]> <![endif]>2000	<![if ! IE]> <![endif]>2500	<![if ! IE]> <![endif]>3000	<![if ! IE]> <![endif]>4000	<![if ! IE]> <![endif]>5000	<![if ! IE]> <![endif]>6000	<![if ! IE]> <![endif]>7000	<![if ! IE]> <![endif]>9000	FLOW GALLON/MIN

2 | VD.BO.J2.02

© Danfoss | DHS-SRMT/SI | 2019.04