The 30L01Y、30L01R self-operated flow control valve

The company has obtained certifications such as TS equipment A1 level, CE, API 607, TR-CU, SIL3, etc.

Classification：

30 series self operated control valve

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Product Description

Summary
The 30L01Y、30L01R self-operated flow control valve is composed of the control valve provided with flow setting and actuator.
The main features are as follows:
1.It has the pressure balancing function with high sensitivity.
2.Low noise, reliable performance,free of maintenance
3.The standard modular design is adopted.
4.The flow is adjusted according to the standard figure by the throttle valve, which is convenient and fast.
5.Various combined controls can be carried out through the assemblies.

Technical parameters andperformances

Body
DN		DN15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 200,250mm
PN		PN1.6、4.0MPa
Flange standard		ANSI, JIS, DIN, GB, JB(special standards can be offered according to user requirements)
Body material		Cast iron (HT200, cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti)
Plug material	Hard seal	Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti) Stainless steel embedded with rubber ring
	Soft seal
Pressure balancing		Stainless steel bellows (DN15~125), balanced diaphragm (DN150~250)

Actuator

Effective area	250	630
Differential pressure of throttle	0.02;0.05
Allowable maximum differential pressure between the upper and lower diaphragm chambers	0.4	0.15
Material	Diaphragm cover: galvanized steel sheet; diaphragm: EPDM or FKM with fiber
Control pipeline, connection	Copper pipe or steel pipe Φ10X1(mm); ferrule connection: R1/4"

Performance

Set value error	±8%
Allowable leakage(under stipulated testing conditions)	Hard seal	4x0.01% valve rated capacity
	Soft seal	DN15~50	DN65~125	DN150~250
		10 bubbles/min	20 bubbles/min	40 bubbles/min

The 30L01Y、30L01R self-operated flow control valve

Structural figure

1	Flow restrictor	2	Body	3	Seat	4	Valve shaft	5	Bonnet
6	Bellows	7	Diaphragm Cover	8	Diaphragm	9	Charging valve

Allowable working temperature

DN		15~125mm
Seal type	Hard seal	≤150°C	≤140°C
		Two cooling tanks ≤200°C	Two cooling tanks and extension≤200°C
	Soft seal	≤150°C

Note: The differential pressure of throttle in the flow valve includes two types such as 0.02MPa and 0.05MPa, which shall be selected according to the actual situations. The differential pressure before and after the valve shall be higher than that of the throttle.

Rated flow coefficient, noise measuringcoefficient, allowable differential pressure

DN		15	20	25	32	40	50	65	80	100	125	150	200	250
Rated flow coefficientKvS		4	6.3	8	16	20	32	50	80	125	160	280	320	400
Throttle pressure difference Flow range (m³/h)	0.02MPa	0.1-2	0.2-3	0.2-4	0.4-7	0.6-11	0.8-16	4-40	3-28	6-63	8-80	12-125	15-150	18-180
Throttle pressure difference Flow range (m³/h)	0.05MPa	0.2-3	0.3-4.5	0.3-6	0.5-10	0.8-16	1.1-24	4-40	6-58	9-90	12-120	18-180	22-220	25-250
Noise measuring coefficient Z value		0.6	0.6	0.6	0.55	0.55	0.5	0.5	0.45	0.4	0.35	0.3	0.2	0.2
Allowable differential pressure(Mpa)	PN16	1.6								1.5		1.2	1.0
Allowable differential pressure(Mpa)	PN40	2.0								1.5		1.2	1.0

Working principle

After the controlled medium enters the valve, the before‑valve pressure P1 is input into the lower diaphragm chamber through the control pipeline, and the pressure Ps after throttling by the throttle valve is input into the upper diaphragm chamber. The difference between P1 and Ps ΔPs=P1‑Ps is called effective pressure. The difference between the thrust produced on the diaphragm by P1 and the thrust produced on the diaphragm by Ps determines relative positions of the plug and seat and determines the flow that passes through the valve. When the flow that passes through the valve increases, i.e. ΔPs increases, P1 and Ps respectively acts on the lower diaphragm chamber and upper diaphragm chamber to make the plug move towards the seat, so that the flow area between the plug and seat is changed and Ps is increased. The thrust acted on the diaphragm by the increased Ps, the reacting force of the spring and the thrust acted on the diaphragm by P1 reaches balance at the new position to realize the purpose of controlling flow, and vice versa.

The flow of the controlled medium is determined through adjusting relative positions of the throttle valve and seat.

Calibration chart: To set the flow more accurately and quickly, the following calibration charts are offered for you reference (please measure the flow with a flowmeter if you need to set the flow more precisely or set the flow for valves with DN150‑250).

The calibration chart is only applicable to water, and serves as a reference for other media, whose flow shall be properly adjusted in the actual process.

Dimensions and weight of control valve

DN(mm)	15	20	25	32	40	50	65	80	100	125	150	200	250
L(mm)	130	150	160	180	200	230	290	310	350	400	480	600	730
B(mm)	212	212	238	238	240	240	275	275	380	380	295	354	404
Weight (Kg)	6.2	6.7	9.7	13	14	17	29	33	60	70	80	140	220
B1(mm)	--	--	--	--	--	--	--	--	--	--	630	855	1205
Weight(kg)	--	--	--	--	--	--	--	--	--	--	140	210	300