ZDLY electronic electric small flow control valve

First, electric small flow control valve overview
ZDLY electric small flow regulating valve produced by Tyco fluid control valve can adapt to different flow requirements of the working conditions, with the introduction of German technology P-SL series electronic electric actuator, electric actuator has servo amplifier, input control signal (4~20mADC or 1~5VDC) and single-phase power supply can control operation, to achieve the adjustment of flow parameters. Electric small flow regulating valve is customized for some special conditions of the electric regulating valve, small flow electric regulating valve is forged by forging body, easy to do high pressure structure. Spool size can be from the processing of poor 0.15~15mm. Electric small flow regulating valve is widely used in power, petroleum, chemical, metallurgy, environmental protection, light industry, digital and scientific research equipment and other industries of industrial process automatic control system.
Second, technical performance and parameter table

Body form: through casting valve	Nominal diameter: DN6~DN25
Nominal pressure: PN1.6/2.5/4.0 / MPaANSI 16.0 MPa / 6.4/10.0 150/300/600/900/1500 lb	Connection method: thread (suitable for less than 1") welding (butt welding, socket welding, etc.)
Structure length: in line with GB/T12221 standard	Spool form: needle spool
Valve cover form: standard type, high temperature type, bellows sealed type, low temperature type	Sealing packing: V-type PTFE, flexible graphite packing
Sealing gasket: polytetrafluoroethylene pad, metal graphite winding pad	Flow characteristics: equal percentage, linear

Three, electric small flow regulating valve specifications

Nominal diameter (DN)	G3/8" G1/2" G3/4" G1"
Valve seat diameter (d)	1.5	2	3	4	5	6	7	8	9	10	11	12	15
Flow coefficient KV	0.025	0.05	0.08	0.12	0.20	0.32	0.50	0.80	1.00	1.40	1.55	1.85	2.23
Allowable pressure difference (MPa)	≤ nominal pressure
Nominal pressure (MPa)	1.6, 2.5, 4.0, 6.4, 10.0, 16.0, 25.0, 32.0
Rated stroke (mm)	8					10					12
Bonnet form	Standard type (-17~250ºC), high temperature type (250~450ºC), low temperature type (-40~-196ºC), bellows sealed type (-40~350ºC)
Gland form	Bolt-down type
Seal packing	V-type PTFE packing, V-type flexible graphite packing
Spool form	Single seat type
Flow characteristics	Equal percentage, straightness
Actuator category	P-SL series, 3810L series, customer designated brand
Actuator parameter	Power supply voltage: 220V, input signal: 4~20mA or 1~5VDC, output signal: 4~20mADC
	Protection level: equivalent IP65
	Ambient temperature: -25~70ºC, ambient humidity: ≤ 95%

Four, the main performance indicators

Projects			Index values
Base error %			With 3810L±2.5 with P-SL±1.0
Return difference %			Match 3810L±2.0 with P-SL±1.0
Dead zone %			1.0
Always point deviation %	Electric On	Starting point ±2.5	End point ±2.5
		Start point ±2.5	End point ±2.5
	Electric Off	Starting point	+ / - 2.5
		End point	+ / - 2.5
Deviation of rated stroke %			2.5 or less
Leakage L/h			0.01% x rated valve capacity
Adjustable range R			30:1

Five, electric small flow regulating valve size table

Nominal diameter DN	Valve seat diameter dn	L	H	H1	H2	A
G3/8"	1.5 ~ 15	95	30	130	298	282
G1/2"	1.5 ~ 15	95	30	130	298	282
G3/4"	1.5 ~ 15	110	30	130	298	282
G1"	1.5 ~ 15	110	30	130	465	177

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