Control valve

VLA300, VLB300

Series VLA-VLB are 2-way and 3-way control valves with flange connection PN16 and higher flow rates, suitable for mixing and flow regulation up to 16 bar. The valves are made of high-performing nodular iron allowing use in heating and cooling installations. The VLA-VLB series is available in 2-way DN15-DN150 ; 3-way DN15-150 and comes with one type of connection. The valve is perfectly combined with ESBE actuators and controllers.

Superb regulation for best mixing and flow regulating performance up to 16 bar (PN16).
Real low internal leakrate and 100% tested product.
Long lasting and high durability.
Perfect match between the valve and ESBE actuators.

Product range

VLA325

VLB325

VLA335

VLB335

2-way Control valve series VLA325

Art.no.	Reference	DN	Kvs** Kvs-value in m3/h at a pressure drop of 1 bar.	A mm	B mm	C mm	D mm	E mm	F mm	G mm	H mm	Weight kg
21200100	VLA325	15	1.6	130	42	123	4x14	20	38	95	65	2.1
21200200	VLA325	15	2.5	130	42	123	4x14	20	38	95	65	2.1
21200300	VLA325	15	4	130	42	123	4x14	20	38	95	65	2.1
21200400	VLA325	20	6.3	150	44	126	4x14	20	41	105	75	2.6
21200500	VLA325	25	10	160	44	131	4x14	20	46	115	85	3.2
21200600	VLA325	32	16	180	58	144	4x19	20	60	140	100	4.6
21200700	VLA325	40	25	200	60	146	4x19	20	61	150	110	5.8
21200800	VLA325	50	38	230	74	161	4x19	20	76	165	125	8.0

2-way Control valve series VLB325

Art.no.	Reference	DN	Kvs** Kvs-value in m3/h at a pressure drop of 1 bar.	A mm	B mm	C mm	D mm	E mm	F mm	G mm	H mm	Weight kg	Note
21220100	VLB325	65	63	290	175	155	4x18	25	95	185	145	23.0	Replaces 21203100, 21202100
21220200	VLB325	80	100	310	187	165	8x18	45	105	200	160	30.0	Replaces 21203200, 21202200
21220300	VLB325	100	130	350	207	176	8x18	45	116.5	220	180	45.6	Replaces 21203300, 21202300
21220400	VLB325	125	200	400	234	199	8x18	45	139	250	210	55.0	Replaces 21203400, 21202400
21220500	VLB325	150	300	480	277	217	8x22	45	157	285	240	71.0	Replaces 21203500, 21202500

3-way Control valve series VLA335

Art.no.	Reference	DN	Kvs** Kvs-value in m3/h at a pressure drop of 1 bar.	A mm	B mm	C mm	D mm	E mm	F mm	G mm	H mm	Weight kg
21200900	VLA335	15	1.6	130	65	123	4x14	20	38	95	65	2.5
21201000	VLA335	15	2.5	130	65	123	4x14	20	38	95	65	2.5
21201100	VLA335	15	4	130	65	123	4x14	20	38	95	65	2.5
21201200	VLA335	20	6.3	150	75	126	4x14	20	41	105	75	3.2
21201300	VLA335	25	10	160	80	131	4x14	20	46	115	85	3.8
21201400	VLA335	32	16	180	90	144	4x19	20	60	140	100	6.6
21201500	VLA335	40	25	200	100	146	4x19	20	61	150	110	7.5
21201600	VLA335	50	38	230	115	161	4x19	20	76	165	125	10.0

3-way Control valve series VLB335

Art.no.	Reference	DN	Kvs** Kvs-value in m3/h at a pressure drop of 1 bar.	A mm	B mm	C mm	D mm	E mm	F mm	G mm	H mm	Weight kg	Note
21221100	VLB335	65	63	290	145	155	4x18	25	95	185	145	19.0	Replaces 21203600, 21202600
21221200	VLB335	80	100	310	155	165	8x18	45	105	200	160	24.0	Replaces 21203700, 21202700
21221300	VLB335	100	130	350	175	176	8x18	45	116.5	220	180	32.0	Replaces 21203800, 21202800
21221400	VLB335	125	200	400	200	199	8x18	45	139	250	210	46.0	Replaces 21203900, 21202900
21221500	VLB335	150	300	480	240	217	8x22	45	157	285	240	61.0	Replaces 21204000, 21203000

Installation support

Installation examples

2-way Control Valves,
Installation without local circulating pump

2-way Control Valves
Installation with local circulating pump

3-way Control Valves,
Installation without local circulating pump

3-way Control Valves,
Installation with local circulating pump

Installation instruction

VLB325, VLB335

Technical data

Suitable application area

Recommended

Heating
Comfort Cooling
Solar heating
Ventilation
District Heating
District Cooling

Technical data

DN 15-50	Type: 2- and 3-way plug valve Pressure class: PN 16 Flow characteristic A-AB: EQM Flow characteristic B-AB: Complementary Stroke: 20 mm Rangeability Kv/Kv min: see graph Leakrate A-AB: Tight sealing Leakrate B-AB: Tight sealing ∆P max: see graph Media temperature, max.: +130 °C Media temperature, min.: -20 °C Connection, Flange: ISO 7005-2

DN 65-150	Type: 2- and 3-way plug valve Pressure class: PN 16 Flow characteristic A-AB: EQM Flow characteristic B-AB: Linear Stroke, DN65: 25 mm Stroke, DN80-150: 45 mm Rangeability Kv/Kv min: >50 Leakrate A-AB: 0.03% of Kvs Leakrate B-AB: 2% of Kvs ∆P max, mixing: 200 kPa ∆P max, diverting: 70 kPa Media temperature, max.: +150 °C Media temperature, min.: -10 °C Connection, Flange: ISO 7005-2

Material DN 15-50	Body: Nodular iron, EN-JS 1030 Stem: Stainless steel, SS 2346 Plug: Brass, CW 602N Seat: Nodular iron, EN-JS 1030 Blind plug: Brass, CW 602N Seat seal: EPDM Packing box seal: PTFE/EPDM

Material DN 65-150	Body: Grey cast iron, EN-JL 1040 Stem: Stainless steel, DIN 1.4305 Plug: Brass CW617N Seat: Grey cast iron, EN-JL 1040 Seat seal: Metallic Packing box seal: EPDM

Conformity, DN 15-50:	PED 2014/68/EU, article 4.3

Conformity, DN 65-150:	PED 2014/68/EU, Annex IV

Valve characteristics 2-way control valves_GB_A-01

2-way valves, DN 15-50

2-way valves, DN 65-150

3-way valves, DN 15-50

3-way valves, DN 65-150

Dimensioning $name

Dimensioning guide - Please see data sheet

Accessories and spare parts

Adaptor kits

Image	Art.no.	Reference	Designation	National trade code	Note	Data sheet	Instructions manual
VLA821 Adaptor kit Siemens SQX actuators.	26000700	VLA821	Siemens SQX actuators		For valves DN 15-50.

Spare parts

Image	Art.no.	Reference	Designation	Note
VLA901 Exchange kit VLA901 Packing box.	27000100	VLA901	Exchange kit VLA901 Packing box	Applies to valve type VLAxxx, VLExxx
VLB901 Exchange kit VLB901 Packing box	27000700	VLB901	Exchange kit VLB901 Packing box	Applies to valve type VLB1xx, VLB2xx
VLB903 Exchange kit VLB903 Packing box	27000800	VLB903	Exchange kit VLB903 Packing box	Applies to valve type VLB3xx

Download area

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Data Sheet

VLA300, VLB300

Installation instruction

VLB325, VLB335

Certificate

Declaration of Conformity VLA300

Certificate

Declaration of Conformity VLB300

Certificate

Building Product Declaration BPD3 VLA300

Certificate

Building Product Declaration BPD3 VLB300