Danfoss VFY-LA Data sheet

Data sheet

Butterfly valve with electrical actuator VFY-LA

Description

Features:

•Spline driven one piece shaft connected to spherically machined disc allows high torque transmission i.e. quick response and minimum back-lash

•Long term reliability due to upper and lower anti-friction bearings

•Safe maintenance: shaft blow out protection with circlip

•Manual operation

•Position indicator

•Torque limiter

•Complete installation from factory - ready for installation

Main Data:

•DN 50-350

•kVS 79-8520 m3/h

•PN 16

•EPDM Liner

•Stainless steel or Ductile iron Epoxy Coated disc

•Medium:

-Circulation water, drinking water or chilled glycolic water up to 50 %

•Medium temperature: −10 … 130 °C (SS disc)

•Nominal voltage:

-24 V; 50 Hz/60 Hz

•Control input signal: On/Off or 3-point

•Torque: 20-600 Nm

•Grade of enclosure: IP66/68

•Ambient temperature: −10 … 55 °C

•Duty rating IEC34: cycle S4 (50 % )

•Approvals:

Ordering	Type VFY-LA 24 V
	Picture	DN	kVS	PN	Tmax	Opening time	Disc	Code No.
			(m3/h)		(°C)	(s)
		50	79			12		082X3000
		65	174					082X3001
		80	275			7		082X3002
		100	496			12		082X3003
		125	883	16	130	12	Stainless	082X3004
		150	1212			12	Steel	082X3005
		200	2500			30		082X3006
		250	3948			60		082X3007
		300	5635			38		082X3008
		350	8520			38		082X3009

© Danfoss | 2021.12

AI399435509284en-GB0101 | 1

Data sheet	VFY-LA

Ordering (continuous)

Spare parts

Replacement actuator AMB-Y

	Actuator			Opening time	Power	Supplay
		for DN	Torque		consumption	voltage	Code No.
	type			(s)
					(W)	(V)
	ER20	50/65	20	12	15		082G7388
	ER35	80	35	7	45		082G7389
	ER60	100	60	12	45	24 V	082G7390
	ER60	125-150	60	12	45		082G7414
	VS150	200	150	30	45		082G7399
	VS300	250	300	60	45		082G7393

Note:

Contact Danfoss sales organization regarding information about replacement actuators for VFY butterfly valves purchased before 01/2015.

Replacement Liner VFY-L Liner

	DN	PN	Liner	Code No.
	50			065B7582
	65			065B7583
	80			065B7584
	100			065B7585
	125	16	EPDM	065B7578
	150			065B7579
	200			065B7592
	250			065B7593
	300			065B7594
	350			065B7591

Technical data	Actuator
	Power supply	DN 50-250	V	15-30 ac; 12-48 dc
	Frequency (AC)		Hz	50/60
	Control Input	DN 50-350		on/off or 3-point
	Torque		Nm	20-600
	Ambient temperature		°C	−10 … 55
	Duty Rating IEC34			S4 (50 %)
	Grade of enclosure	DN 50-150		IP66
		DN 200-350		IP68 (1m, 72h)
				Low voltage directive (LVD) 2006/95/EC: EN61000-3-2, EN61000-3-3, EN61000-6-4,
	- marking in accorance with standards			EN61000-6-2
				EMC Directive 2004/108/EC: EN61010-1

Valve

Nominal diameter			DN	50-350
kVS value			m3/h	79-8520
Rotation angle				90°
Leakage rate				Acc. to PED 2014/68/EU, EN 12266-1, Rate A1)
Nominal pressure			PN	16
Medium				Circulation water, drinking water, chilled glycolic water up to 50%
Medium temperature	SS disc		oC	−10 … 130 (see PT diagram)
Connection				Lug (Tapped lugs)
Mounting				Mounting deadline
Material
Body	DN 50-150			Cast iron EN GJL 250 (DIN GG25)
	DN 200-350			Ductile iron (DIN GGG40)
Disc				Stainless Steel
Shaft				Stainless steel AISI 420
Liner				EPDM
Circlip				Steel XC 75 / Stainless steel
O-ring				Nitrile/Viton
Upper guide bush				Zinc coated S. + PTFE
Lower guide bush				Zinc coated S. + PTFE

1) No visible defectable leakage during the testing procedure.

2 | AI399435509284en-GB0101

© Danfoss | 2021.12

Data sheet	VFY-LA

P-T diagram

	30
	25
	20
<![if ! IE]> <![endif]>(bar)	15
<![if ! IE]> <![endif]>Pressure	10
	5
	0 -10	0	10	30	50	70	90	100	110	120	130

Temperature (°C)

Headloss diagram

For water at 20°C

FLOW Pressure drop kPa (100 kPa = 1 bar = ~ 10m H2O)

	1,5 2							3 4 5 6 7 8 10 15 20 30 40 60 80 100 P
2,8	10
5,6	20
8,3	30
11,1	40																									DN
16,7	60
																										50
22,2	80
27,7	100
41,7	150																									65
55,6	200
69,4	250																									80
83,3	300
111,1	400																									100
138,9	500
166,7	600
222,2	800																									125
277,8	1000																									150
417,7	1500
555,6	2000																									200
694,4	2500
833,3	3000																									250
1111,1	4000
1388,9	5000																									300
1666,7	6000
																										350
2222,2	8000
2777,8	10000
l/sec	m3/h

Flow Rate

(liquid with specific a gravity of 1)

© Danfoss | 2021.12

AI399435509284en-GB0101 | 3