Electric Single-Seat Control Valve

Electric Actuated Single-Seat Control Valve

Short Description:

Electric single-seat control valve consists of PSL series & 3810 series straight-stroke electric actuator and low flow resistance straight-through single-seat valve. Other brands of straight-stroke ac...

Product Name: Electric Actuated Single-Seat Control Globe Valve
Valve Category: Control Valve
Brand: Yiluoke
Technical Data: DN15-DN600
Made In: China
Supplier: Xiamen Yiluoke Import and Export Trading Co., Ltd

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Product Detail

1. Product Overview

The electric actuator is integrated electronic type with built-in servo amplifier. It adjusts valve opening by receiving 4-20mADC / 1-5VDC control signal and power supply, to realize regulation of pressure, flow, liquid level, temperature and other process parameters. It features sensitive action, simple wiring, large flow capacity, compact size and high regulating precision, with obviously improved control performance compared with DKZ type.

Single-seat valve is suitable for working conditions requiring strict leakage limit, low differential pressure and medium with certain viscosity. Widely used in power, metallurgy, chemical, petroleum, environmental protection, light industry and equipment industries.

Electric Single-Seat Control Valve

2. Main Component Materials

Principle and Structure of Electric Single-Seat Control Valve

No.	Parts Name	Material Option 1	Material Option 2	Material Option 3	Material Option 4
1	Valve Body	WCB	CF8	CF8M	CF3M
2	Seat	304	304	316	316L
3	Plug	304	304	316	316L
4	Guide Sleeve	WCB	CF8	CF8M	CF3M
5	Bonnet	WCB	CF8	CF8M	CF3M
6	Stem	304	304	316	316L
7	Packing	PTFE / Flexible Graphite	PTFE / Flexible Graphite	PTFE / Flexible Graphite	PTFE / Flexible Graphite
8	Spring	65Mn	304	316	316L
9	Nut	304	304	316	316L

3. Bonnet Types Description

Normal Temperature Type: Operating temperature -20℃ ~ +200℃, leakage class IV.
High Temperature Type: Equipped with radiating fins, applicable for medium temperature -60℃ ~ +450℃.
Bellows Sealed Type: Fully seals moving stem to eliminate medium external leakage.
Low Temperature Type: Extended bonnet with heat insulation plate, suitable for cryogenic working condition down to -196℃.

4. Main Technical Parameters

Nominal Pressure: 0.6, 1.6, 2.5, 4.0, 6.4 MPa
Rated Stroke: 10, 16, 25, 40, 60, 100 mm
Flow Characteristic: Linear, Equal Percentage, Quick Opening
Operating Temperature: -40～230℃ (Normal); 230～450℃ (High temp with fin); Customized -100～600℃ available
Flange Standard: JB78-59, JB79-59; Optional JB79.1-94, JB79.2-94, ANSI, JIS, DIN
Body Material: WCB(ZG230-450), ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti, CF8, CF8M
Plug Material: 1Cr18Ni9, SS304, 0Cr18Ni12Mo2Ti, SS316, ZG1Cr18Ni9Ti
Body Type: Straight-through single-seat cast globe valve
Bonnet Type: Normal (Ambient), Radiating Fin (Medium-high temp), Extended (Cryogenic)

Matching Actuator Models

PSL Series: PSL-201, PSL-202, PSL-204, PSL-208, PSL-312, PSL-325
381L Series: 381LSA-08,361LXA-08,381LSA-20,361LSB-30,381LSB-50,381LSC-65,381LSC-99
Explosion-proof: 361LXA-20, 361LXB-30, 361LXB-50

Structure of Electric Single-Seat Control Valve

5. Electric Actuator Performance

5.1 Actuator Parameter Table

Model Group	Matched Actuator Model	Rated Output Force(N)	Running Speed(mm/s)	Electrical & Protection Parameters
PSL201 / 361LSA-08/361LXA-08	PSL / 361L	PSL:1000 361L:800	PSL:0.25 361L:4.2	PSL:AC220V 50Hz, Input 4-20mA DC/1-5V DC, Feedback 4-20mA DC, IP67, Handwheel 361L:AC220V 50Hz, Input 4-20mA DC/1-5V DC, Feedback 4-20mA DC, IP55, ExdⅡBT4, Handwheel
PSL202 / 361LSA-20/361LXA-20	PSL / 361L	2000 / 2000	0.50 / 2.1	Same above
PSL204 / 361LSB-30/361LXB-30	PSL / 361L	4500 / 3000	0.50 / 3.5	Same above
PSL208 / 361LSB-50/361LXB-50	PSL / 361L	8000 / 5000	1.00 / 1.7	Same above
PSL312 / 361LSC-65	PSL / 361L	12000 / 6500	0.60 / 2.8	Same above
PSL325 / 361LSC-99	PSL / 361L	25000 / 10000	1.0 / 2.0	Same above

5.2 Performance Indicators

Test Item	Standard Value
Basic Error	±2.5% (3810L); ±1.0% (with positioner)
Hysteresis	±2.0% (381L); ±1.0% (PSL)
Dead Zone	≤1.0%
Onset & Terminal Deviation Air-to-open: Start / End Air-to-close: Start / End	±2.5% / ±2.5% ±2.5% / ±2.5%
Rangeability	30:1
Rated Stroke Deviation	≤±2.5%
Leakage Rate	Class IV per JB/T7387-94, ≤0.01% valve rated capacity

5.3 Allowable Differential Pressure

Note: Actual configuration shall be confirmed by process parameters. Contact us if required differential pressure exceeds table data. Table omitted for long data, available in original document.

6. Overall Dimensions (Unit:mm)

Dimension Drawing of Electric Single-Seat Control Valve

ctural Length L

DN	PN16/25	PN40	PN64/100
20	185	190	200
25	200	205	210
32	205	210	220
40	222	230	251
50	250	255	286
65	276	285	311
80	298	310	337
100	350	355	394
125	410	425	440
150	451	460	475
200	600	615	630
250	650	685	700
300	740	750	765

Height H (Normal Temperature)

DN	PN16/25	PN40	PN64/100
20	699	679	682
25	711	721	733
32	728	738	750
40	728	738	750
50	731	741	753
65	827	837	849
80	839	849	861
100	857	867	879
125	895	905	917
150	1140	1150	1180
200	1160	1180	1240
250	1305	1335	1385
300	1512	1565	1605

Height H (High Temperature)

DN	PN16/25	PN40	PN64/100
20	849	859	875
25	861	871	885
32	893	903	915
40	893	903	915
50	901	911	923
65	975	985	997
80	1024	1034	1055
100	1067	1077	1095
125	1250	1260	1280
150	1400	1415	1450
200	1420	1440	1465
250	1513	1545	1575
300	1670	1690	1720

H1 Dimension

DN	PN16/25	PN40	PN64/100
20	53	53	63
25	58	58	68
32	68	68	75
40	73	73	83
50	80	80	88
65	90	90	100
80	98	98	105
100	108	115	125
125	123	135	148
150	140	150	170
200	168	188	203
250	203	223	235
300	230	255	265