High Temperature Electric Single Seat Regulating Valve_Meisonilan Valves (Suzhou) Co., Ltd.

The high-temperature electric single seat regulating valve is composed of 3610L/3810/PSL series electronic electric actuators or intelligent integrated actuators and single seat regulating valves. The electric actuator has a servo system inside, which does not require a separate servo amplifier. It can be controlled with input signals and power supply. The electronic actuator has simple wiring, and the regulating valve core adopts top guidance, which is suitable for situations with strict leakage requirements, small pressure difference before and after the valve, and certain viscosity and fiber like media.

Main component materials

Component name	Material
Valve body, valve cover	WCB(ZG230-450) WCC(ZG270-500) WC6(ZG15CrMo) CF8(304) CF8M(316) CF3(304L) CF3M(316L)
Valve core, valve seat	304(0Cr18Ni9) 316(OCr17Nil2Mo2) 316L(00Cr17Nil4Mo2) and overlay welded with Stellite alloy 17-4PH(Precipitation hardening stainless steel)
Packing	PTFE(Polytetrafluoroethylene) R.TFE(Reinforced polytetrafluoroethylene) Grafoil(Flexible graphite)
Sealing gasket	PTFE, Flexible graphite with metal insert
Valve stem	304 316 316L 17-4PH

Note: Other materials can be selected according to the working conditions.

Main technical parameters

Nominal diameter DN(mm)		20				25							32	40		50
Valve seat diameter dn(mm)		10	12	15	20	10		12		15	20	25	32	32	40	32	40	50
Rated flow coefficient (KV)	Linear	1.8	2.8	4.4	6.9	1.8		2.8		4.4	6.9	11	17.6	17.6	27.5	17.6	27.5	44
Rated flow coefficient (KV)	Equal percentage	1.6	2.5	4.0	6.3	1.6		2.5		4.0	6.3	10	16	16	25	16	25	40
Valve stroke (mm)		16											25
Actuator model		361LSA-08/381LSA-08/PSL201											361LSA-20/381LSA-20/PSL202
Nominal diameter DN(mm)		65	80		100						125	150		200		250
Valve seat diameter dn(mm)		65	65	80	65		80		100		125	125	150	150	200	250
Rated flow coefficient (KV)	Linear	69	69	110	69		110		176		275	275	440	440	690	1100
Rated flow coefficient (KV)	Equal percentage	63	63	100	63		100		160		250	250	400	400	630	900
Rated stroke L		40									60					100
Commonly used actuator model		361LSB-3 381LSB-30 PSL204			361LSB-50 381LSB-50 PSL208						361LSC-65 381LSC-65 PSL312			361LSC-99 381LSC-99 PSL314		361LSC-160 381LSC-160 PSL316/320
Nominal pressure (PN)/Class		MPa			1.6, 2.5, 4.0, 6.4(6.3)/2.0, 5.0, 11.0
		Bar			16, 25, 40, 64(63)/20, 50, 110
		Lb			ANSI: Class150, Class300, Class600
Inherent flow characteristic		Linear, Equal percentage
Inherent adjustable ratio (R)		50:1
Signal		Input signal: 4 - 20mA (indicate if input is 1 - 5v); Feedback signal: 4 - 20mA
Allowable leakage		Hard valve core; Class IV (10-4×Kv), Soft valve core: Class VI, see GB/T4213-92
Operating temperature t (℃)	Normal temperature type				-20～200, -40～250, -60～250
	Heat dissipation type	Code: S			-40～350, -60～350
	High temperature type	Code: G			350～595 (Select high temperature materials)
	Low temperature type	Code: D			D0: -60～-100, D1: -100～-200, D2: -200～-250
	Regulating and shut-off type	Code: Q			-40～150 (Valve core with reinforced PTFE) (Used in special cases)

Note: ① The division of operating temperature is based on the comprehensive factors such as the pressure - temperature rating of the valve body material (GB/T12224-2005), the operating conditions, and the sealing material of the valve. There are slight differences in the division among different countries, and even among different manufacturing companies due to the use of different materials.
The above actuator configuration is based on the conventional configuration. The specific configuration should be determined according to the process parameters, considering the pressure difference, and a reasonable and economical actuator should be selected. The electronic electric actuators can also use the same type of products from other companies.

Overall dimensions

Overall dimensions table of high temperature type electric single-seated control valve

Nominal diameter	L			H		D	Weight Kg
	PN Mpa			Normal temperature	Heat dissipation high temperature		PN1.6 Mpa	PN6.4 Mpa
	1.6	4.0	6.4	Normal temperature	Heat dissipation high temperature		PN1.6 Mpa	Normal temperature	High temperature
15	150		230	560	630	225		12	14
20	150		230	565	635			25	28
25	160		230	570	640		24	28	31
32	180		260	595	665		26	29	32
40	200		260	655	725	255	36	45	49
50	230		300	660	735		39	49	53
65	290		340	760	840		57	76	84
80	310		380	770	840		72	95	105
100	350		430	770	850	311	85	100	120
125	400		500	1045	1135		150	175	190
150	480		550	1100	1190		187	231	251
200	600		650	1285	1380		242	365	355
250	730		775	1335	1435		345	398	495

Note:

① To facilitate maintenance, please reserve 200 - 300mm space above the valve so that the actuator can be removed without removing the valve.

② Take the 361L type actuator as an example.

Overall dimensions table of high temperature type electric single-seated control valve

Nominal diameter	D	Dn	-100℃		-200℃		-250℃		D3	D4	n-Φd	Weight Kg
Nominal diameter	D	Dn	H2	H	H2	H	H2	H	D3	D4	n-Φd	Weight Kg
15	225	290	500	932	700	1132	900	1332	260	290	8-14	21
20		290		1050		1250		1450				35
25		290		1080		1280		1480				39
32		315		1100		1300		1500	285	315		41
40	255	335		1225		1425		1625	305	335	8-16	59
50		370		1263		1463		1663	340	370	8-16	65
65		400	600	1426	800	1626	1000	1826	370	400	10-16	95
80		435		1431		1631		1831	405	435	10-16	108
100		490		1450		1650		1850	460	490	12-18	138
125	310	555	700	1755	900	1955	1100	2155	525	555	14-18	223
150		630		1785		1985		2185	590	630	16-18	282
200		740		1821		2021		2221	700	740	18-18	395

Note:

① Take the 361L type actuator as an example. H2 can also be specified by the design institute or the user.

② The dimension L is shown in the above figure.

Connection dimensions and standards

Flanges are in accordance with GB/T9113-2000 (default standard).

It can also be in accordance with JB/T79.1-94, JB/T79.2-94, or HG20592～HG20635-2009.

Flange sealing surface type: PN16, PN25 are raised face flanges, PN40, PN64(63) are male and female face flanges, and the valve body is a female face flange.

Flange end distance is in accordance with GB12221-2005 (other standards must be specified).

Welded connection groove is in accordance with GB12224-2005.

The valve body flange and flange end distance can be manufactured according to the standards specified by the user, such as ANSI, JIS, DIN, etc.

Model numbering instructions

ZDLP- K(B)

Actuator category; D: Electronic; L: Linear stroke; P: Single-seated control valve

Pressure level: For example, 16: 1.6MPa; K(B) Electric open(close) type

ZDLPQ-K(B) Q: Regulating and shut-off type

ZDLP-K(B)GG: High temperature type

ZDLP-K(B)WW: Bellows sealed type

ZDLP-K(B)JJ: Jacketed insulation type

ZDLP-K(B)DD: Low temperature type

ZDLP-K(B)SS: Heat dissipation type

ZDLP-K(B)WSWS: Bellows sealed heat dissipation type

ZDLPⅡ-K(B)Ⅱ: Low noise type

Valve Installation:
(1) Before installation, check that the product model, tag number, and specifications match the requirements. Inspect the entire valve for missing or loose parts.
(2) Prior to installation, clean the pipeline. Ensure there is sufficient straight pipe section at the valve inlet and install a filter. When connecting the valve body to the pipeline flanges, ensure coaxiality.
(3) Thoroughly clean the pipeline before installing the valve.
(4) The installation site should ensure the safety of personnel and equipment, facilitating operation, disassembly, and maintenance.
(5) The valve should be installed vertically upright on horizontal pipelines. If necessary, it can be installed at an angle, but horizontal installation should be avoided. For occasions with heavy valve weight or vibration, use a support frame.
(6) The medium flow direction must align with the arrow on the valve body. The air supply should be dry and oil-free. The valve should be used in environments with temperatures ranging from -20℃ to 55℃.

Valve Maintenance:
(1) Cleaning the Valve: For general media, cleaning with water is sufficient. For media harmful to health, first understand their properties and then select an appropriate cleaning method.
(2) Disassembly: Remove rust from exposed rusted parts first. Before derusting, protect the machined surfaces of precision parts such as the valve seat, valve plug, valve stem, and push rod. Use special tools when disassembling the valve seat.
(3) Valve Seat: Minor rust or wear on the sealing surface can be repaired by machining. If damage is severe, replace the seat. However, both repaired and replaced hard sealing surfaces must be lapped.
(4) Valve Stem: If the surface is damaged, it must be replaced.
(5) Damage to Push Rod, Guide, and Sealing Surfaces: Reverse-acting actuators must be replaced; direct-acting actuators can be reused after proper repair.
(6) Compression Spring: If there are cracks or other defects affecting strength, replace it immediately.
(7) Wear Parts: Packing, gaskets, and O-rings must be replaced entirely during each maintenance. Check the valve plug and diaphragm for cracks, aging, or corrosion that may cause future failures. Decide whether to replace them based on inspection results, but the diaphragm service life should not exceed 2-3 years.
(8) When reassembling the valve, ensure alignment. Tighten bolts diagonally and lubricate sliding parts. After reassembly, debug the valve according to the factory test items and methods. During this period, accurately adjust the packing compression force and the valve plug closing position.

When placing an order, please fill in the Specification Sheet or specify the following information:

If the model has not been selected before ordering, please provide us with the operating parameters:
(1) Nominal diameter DN (mm);
(2) Nominal pressure (MPa or bar);
(3) Fluid properties (including medium temperature, viscosity, or acidity/alkalinity);
(4) Pressure before and after the valve (pressure differential);
(5) Requirements for flow characteristics;
(6) Materials of valve body and valve core;
(7) Connection type;
(8) Driving method (provide air supply pressure, driving voltage);
(9) Supporting accessories (for pneumatic valves, it is recommended that users install an air filter triplet and a 2-position 5-way solenoid valve);
(10) On-site working conditions.
If the product model of our company has been selected by the design unit, please order directly from our production department according to the model;
When the application occasion is very important or the pipeline is relatively complex, please provide the design drawings and detailed parameters as much as possible, and our experts will review and check them for you.