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SQD200 Top Guide Single-seat Regulating Valve
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Product Details
SQD200
Top-guided single-seat regulating valve
Pneumatic Linear Stroke Regulating Valve
Product overview
SQD200 type electric single-seat regulating valve adopts top-oriented structure, compact structure of the valve body, S-streamlined fluid channel, small pressure drop loss, large circulation, wide adjustable range, and high precision of flow characteristics. The valve core guiding part has a large area and strong shock resistance. The valve seat closing performance conforms to GB/T4213-92 standard. The regulating valve is equipped with a small, strong and high-precision actuator with ON-OFF or 4-20mADC or 1~5v DC signal for proportional action. It is more suitable for use in high temperature, low temperature and high pressure occasions requiring reliability and high closing performance.
Standard technical parameters
Valve body
Type: straight-through single-seat casting ball valve
Valve size: DN20-200mm 3/4 "-8"
Rated pressure: PN16, PN40, PN63, PN100 ANSI 150 300 600 900
Connection form: ANSI GB JB HG JPI JIS DIN
Welding (to be specified by user)
Flange standard: ANSI GB JB HG JPI JIS DIN
Sealing surface type: RF RJ FF RM flange connection
Flange end face distance: as GB12221-89
Material: NCB WC6 WC9 CF3 CF8 CF3M CF8M
Inner parts material: 304 316 304L 316L 17-4PH
Type of gland: pressing plate type
Filler: V-type polyvinyl fluoride filler, flexible stone filler
Gasket: type, tooth type and peace type
Material, F4/Modified F4, Stainless Steel Graphite
Intra-Valve Components
Spool: single seat plunger type spool
Sleeve: Metal seal
Equal percentage characteristics (%C)
Linear characteristics (LC)
Soft seal (material: reinforced PTFE)
Equal percentage characteristics (%C)
Linear characteristics (LC)
implementing agency
Type: electric actuator
381lsa/xa-08, 381lsa/XA-20, 381lsb/XB-30, 381lsb/xb-50, 381lsc-65, 381lsc-99, 381lsc-160
Valve role: positive role, reaction
Control action: proportional control or ON-OFF control
Input signal: 4~20mADC or 1 ~ 5VDC must select the position of the regulating valve when the input signal is "off" (protection, full open, full close)
Power supply: AC220V,50Hz
Output signal: 4-20mADC (load resistance below 5002)
Power Consumption: Type A/50VA, Type B/150VA, Type C/220VA
Degree of protection: IP55
Outlet connection: ordinary S type G1/2, explosion-proof X type G3/4
Ambient temperature: no space heater -10 ℃ ~ 60 ℃
With space heater -35 ℃ ~ 60 ℃
Explosion-proof X-type -10 ℃ ~ 40 ℃
Ambient humidity: ordinary S type below 95%, explosion-proof X type 45-85%
Flameproof grade: ExdIIBT4
over-cutting protection: type a and type B are optional, type c must be matched
Manual device: with handle
Accessories (as required)
Space heater, oversize protection
Performance
Rated Kv value: refer to Table 1
Flow thermal: linear, equal percentage
Adjustable range: 50:1
Seat leakage sea (% for rated Kv)
Metal seal less than 0.01%(ANSI B16.104-1976IV grade) and less than 0.001%(is an option)
Soft seal less than 0.00001%
Below (ANSIB16.104-1976VI level)
Basic error: ± 1%
Return difference: ≤ 1%
Dead band: ≤ 1%
Action time: refer to Table 1
Overall dimension: refer to Table 2
Product pressure: refer to Table 2
Terminal diagram: refer to the instruction manual of the equipped actuator.
Paint color: the surface of the electric actuator and valve of the regulating valve shall be painted, and the stainless steel and copper valves may not be painted.
The arrows and text on the valve body are painted red.
User-specified colors are also available.

| Nominal through DN(mm) | Seat diameter d(mm) | Rated flow coefficient KV | Motor actuator signal | Output thrust (N) | Rated stroke (mm) | Action time (S) | |
|---|---|---|---|---|---|---|---|
| Linear | equal ratio | ||||||
| 20 | 5 | 0.2 | 381LSA-08 | 800 | 10 | 2.4 | |
| 7 | 0.5 | ||||||
| 8 | 0.8 | ||||||
| 10 | 1.8 | 1.6 | 381LSA-08/20 | 800/2000 | 16 | 3.8/7.6 | |
| 12 | 2.8 | 2.8 | |||||
| 15 | 4.4 | 4 | |||||
| 20 | 6.9 | 6.3 | |||||
| 25 | 25 | 11 | 10 | ||||
| 32 | 32 | 17 | 16 | 381LSB-30/50 | 3000/5000 | 25 | 7.2/14.7 |
| 40 | 40 | 27 | 25 | ||||
| 50 | 50 | 44 | 40 | ||||
| 65 | 65 | 69 | 63 | 381LSB-50/SC-65 | 5000/6500 | 40 | 23.S/14.3 |
| 80 | 80 | 110 | 100 | ||||
| 100 | 100 | 176 | 160 | ||||
| 125 | 125 | 275 | 250 | ||||
| 150 | 150 | 440 | 400 | ||||
| 200 | 200 | 690 | 630 | ||||
| Nominal diameter DN | L | A | B | D | R | H1 | H6 | H2 | H3 | H4 | H5 | Weight (kg) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PN16/40 | PN63/100 | PN16/40 | PN63/100 | PN16/40 | PN63/100 | PN16/40 | PN63/100 | PN16/40 | PN63/100 | ||||||||
| 20 | 150 | 230 | 460 | 230 | 225 | 177 | 126 | 138 | 142 | 154 | 490 | 373 | 459 | 43 | 49 | 10 | 13 |
| 25 | 160 | 230 | 460 | 230 | 225 | 177 | 126 | 138 | 142 | 154 | 490 | 373 | 459 | 48 | 54 | 12 | 16 |
| 32 | 180 | 260 | 460 | 230 | 225 | 177 | 134 | 142 | 154 | 162 | 490 | 495 | 459 | 57 | 61 | 15 | 19 |
| 40 | 200 | 260 | 460 | 230 | 225 | 177 | 157 | 165 | 177 | 185 | 490 | 495 | 459 | 66 | 70 | 17 | 26 |
| 50 | 230 | 300 | 460 | 230 | 225 | 177 | 167 | 187 | 187 | 207 | 490 | 495 | 459 | 80 | 84 | 18 | 27 |
| 65 | 290 | 340 | 530 | 230 | 255 | 177 | 199 | 204 | 226 | 231 | 540 | 700 | 520 | 92 | 97 | 34 | 43 |
| 80 | 310 | 380 | 530 | 230 | 255 | 177 | 214 | 219 | 241 | 246 | 540 | 700 | 520 | 100 | 105 | 46 | 69 |
| 100 | 350 | 430 | 530 | 230 | 255 | 177 | 229 | 240 | 256 | 267 | 540 | 700 | 520 | 120 | 125 | 54 | 85 |
| 125 | 400 | 500 | 630 | 260 | 310 | 226 | 263 | 280 | 290 | 307 | 625 | 725 | 570 | 134 | 138 | 76 | 120 |
| 150 | 480 | 550 | 630 | 260 | 310 | 226 | 293 | 300 | 320 | 327 | 625 | 725 | 570 | 156 | 163 | 79 | 125 |
| 200 | 600 | 650 | 630 | 260 | 310 | 226 | 358 | 364 | 385 | 391 | 625 | 725 | 570 | 199 | 206 | 100 | 150 |
Note:
1. The weight in the table is the data of PSL type actuator.
2. The valve body flange and flange end face distance can be manufactured according to user-specified standards, such as ANSI,JS,DN and other standards.
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