
Body type: Straight-through S-type cast valve
Plug type: Balance cage single-seat plunger valve core
Nominal diameter: DN15~300mm; NPS 1/2″~12″
Nominal pressure: PN1.6~6.4MPa;Class 150~300LB
Applicable temperature: -196℃~550℃ (Optional according to working conditions)
Type of connection: Flange, welding, thread (applicable within 1″)
Flange distance: According to IEC 60534
Gland type: Bolt compression type
Sealing gasket: Metal graphite spiral wound gasket
Packing: PTFE, flexible graphite
Actuator: Pneumatic actuator, electric actuator
The HCN Top-Guide Type Porous Cage Control Valve is designed for stable and precise flow control in demanding operating conditions. Featuring a top-guided, pressure-balanced structure, it delivers excellent dynamic stability, accurate flow characteristics, and reliable shut-off performance. The valve is well suited for applications with high pressure differentials, low noise requirements, and strict leakage control, ensuring smooth operation, reduced vibration, and long service life in industrial processes.
| Code | Category | Description |
|---|---|---|
| H | Structural Style | Structural type classification |
| T | Flow Type | L: Ultra Low Flow Type T: Compression Type C: Cage Type |
| S | Valve Design Type | S: Standard Single-Seated Control Valve N: Cage Type Low-Noise Control Valve B: Sleeve Regulating Valve |

The HCN Top-Guide Type Porous Cage Control Valve is designed for high pressure drop applications, where erosion and noise are critical concerns. By optimising the internal flow path and adopting advanced throttling design, the valve effectively reduces flow velocity, minimises internal wear, and lowers noise levels. For liquid service, a high-inlet, low-outlet configuration helps dissipate energy within the trim, while for gas service, a low-inlet, high-outlet design allows downstream expansion to reduce pressure and stabilise flow, ensuring reliable performance and extended service life in demanding conditions.
| Item | Specification |
|---|---|
| Body Type | Straight-through S-type cast valve |
| Plug Type | Balanced porous plug |
| Nominal Diameter | DN25–300 mm (NPS 1″–12″) |
| Nominal Pressure | PN1.6–16.0 MPa; Class 150–1500 LB |
| Applicable Temperature | -196°C to +550°C (optional according to working conditions) |
| Type of Connection | Flanged, welded, threaded (threaded suitable for ≤1″) |
| Flange Standard | According to IEC 60534 |
| Gland Type | Bolt compression type |
| Sealing Gasket | Metal graphite spiral wound gasket |
| Packing | PTFE, flexible graphite |
| Actuator | Pneumatic actuator, electric actuator |


| No. | Component | WCB | LCB | WC9 |
|---|---|---|---|---|
| 1 | Body | WCB | LCB | WC9 |
| 2 | Gasket | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE |
| 3 | Seat | SS304 | SS304 | SS304 |
| 4 | Plug | SS304 | SS304 | SS304 |
| 5 | Bush | Cu / 316L | Cu / 316L | Cu / 316L |
| 6 | Guide Sleeve | SS304 | SS304 | SS304 |
| 7 | Gasket | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE |
| 8 | Bonnet | WCB | LCB | WC9 |
| 9 | Nut | SS304 | SS304 | SS304 |
| 10 | Stud Bolt | SS304 | SS304 | SS304 |
| 11 | Stem | SS304 | SS304 | SS304 |
| 12 | Packing | PTFE / Flexible Graphite | PTFE / Flexible Graphite | PTFE / Flexible Graphite |
| 13 | Lock Nut | SS304 | SS304 | SS304 |
| 14 | Sleeve | SS304 | SS304 | SS304 |
| 15 | Plate | SS304 | SS304 | SS304 |
| No. | Component | CF8 | CF8M | CF3M |
|---|---|---|---|---|
| 1 | Body | CF8 | CF8M | CF3M |
| 2 | Gasket | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE |
| 3 | Seat | SS304 | SS316 | SS316L |
| 4 | Plug | SS304 | SS316 | SS316L |
| 5 | Bush | Cu / 316L | Cu / 316L | Cu / 316L |
| 6 | Guide Sleeve | SS304 | SS316 | SS316L |
| 7 | Gasket | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE | SS316 + Graphite / PTFE |
| 8 | Bonnet | CF8 | CF8M | CF3M |
| 9 | Nut | SS304 | SS316 | SS316L |
| 10 | Stud Bolt | SS304 | SS316 | SS316L |
| 11 | Stem | SS304 | SS316 | SS316L |
| 12 | Packing | PTFE / Flexible Graphite | PTFE / Flexible Graphite | PTFE / Flexible Graphite |
| 13 | Lock Nut | SS304 | SS316 | SS316L |
| 14 | Sleeve | SS304 | SS316 | SS316L |
| 15 | Plate | SS304 | SS316 | SS316L |
Notes:

| Inside Diameter(mm/in) | 20 (3/4″) | 25 (1″) | 32 (1-1/4″) | 40 (1-1/2″) | 50 (2″) | 65 (2-1/2″) | 80 (3″) | 100 (4″) | 125 (5″) | 150 (6″) | 200 (8″) | 250 (10″) | 300 (12″) | |
| Flow Coefficient (KV) | Straight Line | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | 1100 | 1760 |
| Percent (%) | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | 1000 | 1600 | |
| Pneumatic Actuator | HA/B-22 | HA/B-23 | HA/B-34 | HA/B-45 | HA/B-56 | |||||||||
| Area | 350 cm² | 350 cm² | 560 cm² | 900 cm² | 900 cm² | |||||||||
| Mode of action | Spring Range | Metal seal allows differential pressure(MPa) | ||||||||||||
| Gas Opening | 20–100 KPa | 1.16 | 0.7 | 0.44 | 0.28 | 0.18 | 0.17 | 0.11 | 0.07 | 0.07 | 0.05 | 0.03 | 0.02 | 0.01 |
| 40–200 KPa | 3.34 | 2.14 | 1.31 | 0.84 | 0.53 | 0.51 | 0.33 | 0.21 | 0.21 | 0.15 | 0.09 | 0.06 | 0.04 | |
| 80–240 KPa | 6.4 | 4.99 | 3.05 | 1.95 | 1.25 | 1.18 | 0.78 | 0.5 | 0.5 | 0.36 | 0.21 | 0.15 | 0.08 | |
| Gas Off | 20–100 KPa | 2.23 | 2.14 | 0.87 | 0.56 | 0.36 | 0.34 | 0.22 | 0.14 | 0.14 | 0.1 | 0.06 | 0.03 | 0.02 |
| 40–200 KPa | 6.4 | 6.4 | 5.86 | 3.64 | 2.3 | 2.21 | 1.43 | 0.91 | 0.91 | 0.66 | 0.37 | 0.25 | 0.2 | |
| 80–240 KPa | 6.4 | 6.4 | 6.4 | 5.04 | 3.18 | 3.06 | 1.98 | 1.26 | 1.26 | 0.92 | 0.52 | 0.47 | 0.35 | |
| Electric Actuator | Metal seal allows differential pressure(MPa) | |||||||||||||
| Thrust(N) | 800 | 2.38 | ||||||||||||
| 2000 | 4.77 | 3.05 | 1.86 | 1.19 | 0.76 | |||||||||
| 3000 | 2.79 | 1.79 | 1.14 | |||||||||||
| 5000 | 4.66 | 2.98 | 1.91 | 1.13 | 0.6 | 0.47 | ||||||||
| 6500 | 1.35 | 0.8 | 0.57 | 0.39 | 0.26 | 0.16 | ||||||||
| 10000 | 0.61 | 0.42 | 0.2 | 0.15 | ||||||||||
| 16000 | 0.97 | 0.67 | 0.35 | 0.12 | 0.09 | |||||||||
| Model | Pneumatic film actuator | Electronic electric actuator |
| Form | ZH22~ZH56 | 3810L, RSL |
| Type | Multi spring | Intelligent integrated type |
| Purpose | Adjustment, switch | Regulating |
| Drive | Air pressure (spring range): 140 (20~100) KPa G 240 (40~200) KPa G 280 (80~240) KPa G | Power supply: AC 220 V ±10% 50Hz AC 380 V ±10% 50Hz |
| Joint | Rc 1/4 | Common type: 2–PF(G1/2”) Flameproof type: 2–PF(G3/4”) |
| Positive Action | Air pressure increases to push the valve to close | Control signal increases to push the valve to close |
| Reaction | Air pressure increases to push the valve open | Control signal increases to push the valve open |
| Control Signal | 4~20mA.DC (With positioner) | Input output 4~20mA.DC |
| Lag | ≤1% FS (With positioner) | ≤0.8% FS |
| Linearity | 2% FS (With positioner) | ≤±1% FS |
| Ambient Temperature | -10°C ~ +70°C | |
| Surface Coating | Black phosphating treatment Actuator: Acrylic polyurethane paint | |
| Optional Accessories | Optional accessories, Hand wheel, Magnetic valve, Travel switch, Lock up valve | Heater |
| Flow Characteristics | Equal percentage, Straight line | |
| Adjustable Range | 50:01:00 | |
| Rated Cv Value | Equal percentage: 10~1400 Straight line: 11~1500 | |
| Allowable Leakage | Hard seal: Level-IV (0.01% rated flow of valve) Soft seal: Level-V | |
| Drive Mode | Pneumatic | Electric |
| Intrinsic Error (%) | ±1.0 | ±1.0 |
| Return Difference (%) | ≤1.0 | ≤1.0 |
| Dead Zone (%) | ≤0.6 | ≤1.0 |
| Constant Point Deviation (%) | ±2.5 | ±2.5 |
| Rated Stroke Deviation (%) | ≤2.5 | ≤2.5 |

| DN (mm / in) | 20 (3/4″) | 25 (1″) | 32 (1-1/4″) | 40 (1-1/2″) | 50 (2″) | 65 (2-1/2″) | 80 (3″) | 100 (4″) | 125 (5″) | 150 (6″) | 200 (8″) | 250 (10″) | 300 (12″) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L (PN16/25) L (PN40) L (PN64) | 180 | 188 | 200 | 220 | 252 | 275 | 300 | 350 | 400 | 455 | 555 | 660 | 740 |
| 180 | 188 | 200 | 220 | 252 | 275 | 310 | 370 | 410 | 475 | 600 | 670 | 750 | |
| 206 | 210 | 220 | 251 | 290 | 315 | 341 | 398 | 452 | 511 | 610 | 752 | 819 | |
| H (PN16) H (PN40) H (PN64) | 52.5 | 57.5 | 70 | 75 | 82.5 | 92.5 | 100 | 110 | 125 | 142 | 170 | 202 | 230 |
| 52.5 | 57.5 | 70 | 75 | 82.5 | 92.5 | 100 | 117.5 | 135 | 150 | 187 | 225 | 257 | |
| 65 | 70 | 77.5 | 85 | 90 | 102.5 | 107.5 | 125 | 147.5 | 172 | 207 | 235 | 285 | |
| H1 | 132 | 132 | 158 | 170 | 179 | 214 | 221 | 234 | 270 | 294 | 331 | 390 | 505 |
| H2 | 315 | 315 | 335 | 335 | 335 | 415 | 415 | 415 | 500 | 500 | 500 | 670 | 670 |
| H3 | 208 | 208 | 224 | 228 | 228 | 334 | 334 | 342 | 408 | 453 | 482 | 520 | 550 |
| H4 | 153 | 153 | 153 | 153 | 153 | 181 | 181 | 181 | 247 | 247 | 247 | / | / |
| H5 | 336 | 338 | 402 | 402 | 405 | 627 | 628 | 635 | 698 | 702 | 728 | 755 | 790 |
| H6 | 700 (customized according to actual temperature conditions) | ||||||||||||
| H7 | 88 | 88 | 88 | 88 | 88 | 95 | 95 | 95 | 95 | 110 | 110 | 140 | 140 |
| D | 310 | 310 | 355 | 355 | 390 | 430 | 465 | 520 | 585 | 660 | 770 | 890 | 950 |
| A | 285 | 285 | 285 | 285 | 285 | 360 | 360 | 360 | 470 | 470 | 470 | 580 | 580 |
| C | 180 | 180 | 180 | 180 | 180 | 200 | 200 | 200 | 250 | 250 | 250 | 380 | 380 |

| DN (mm / in) | 20 (3/4″) | 25 (1″) | 32 (1-1/4″) | 40 (1-1/2″) | 50 (2″) | 65 (2-1/2″) | 80 (3″) | 100 (4″) | 125 (5″) | 150 (6″) | 200 (8″) | 250 (10″) | 300 (12″) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L (PN16/25) L (PN40) L (PN64) | 180 | 188 | 200 | 220 | 252 | 275 | 300 | 350 | 400 | 455 | 555 | 660 | 740 |
| 180 | 188 | 200 | 220 | 252 | 275 | 310 | 370 | 410 | 475 | 600 | 670 | 750 | |
| 206 | 210 | 220 | 251 | 290 | 315 | 341 | 398 | 452 | 511 | 610 | 752 | 819 | |
| H (PN16) H (PN40) H (PN64) | 52.5 | 57.5 | 70 | 75 | 82.5 | 92.5 | 100 | 110 | 125 | 142.5 | 170 | 202.5 | 230 |
| 52.5 | 57.5 | 70 | 75 | 82.5 | 92.5 | 100 | 117.5 | 135 | 150 | 187 | 225 | 257 | |
| 65 | 70 | 77.5 | 85 | 90 | 102.5 | 107.5 | 125 | 147.5 | 172 | 207.5 | 235 | 285 | |
| H1 | 132 | 132 | 158 | 170 | 179 | 214 | 221 | 234 | 270 | 294 | 331 | 390 | 507 |
| H2 | 373 | 373 | 456 | 456 | 179 | 538 | 548 | 548 | 725 | 725 | 725 | 795 | 955 |
| H3 | 208 | 208 | 224 | 228 | 228 | 334 | 334 | 342 | 408 | 453 | 482 | 520 | 50 |
| H4 | 90 | 90 | 90 | 90 | 228 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| H5 | 336 | 338 | 402 | 402 | 406 | 627 | 628 | 635 | 698 | 702 | 728 | 755 | 790 |
| H6 | 700 (customized according to actual temperature conditions) | ||||||||||||
| H7 | 88 | 88 | 88 | 88 | 88 | 95 | 95 | 95 | 95 | 110 | 110 | 140 | 140 |
| D | 310 | 310 | 355 | 355 | 390 | 430 | 465 | 520 | 585 | 660 | 770 | 890 | 950 |
| A | 285 | 285 | 285 | 285 | 285 | 360 | 360 | 360 | 470 | 470 | 470 | 580 | 580 |
Note: 1.The dimensions in the table are standard data without accessories. The dimensions of accessories are calculated according to the actual configuration.2.Due to the technical innovation and improvement of the product, the size may change. Please contact the technical department of the Company for the latest information. 3.The actuated valve can be customized according to the actual size.
Top-guided single-seated control valves are essential components in various industrial processes, offering precise flow control and reliable performance. Their applications include:
Water Treatment Facilities: Utilized in controlling the flow of water and treatment chemicals, they aid in maintaining water quality and system efficiency.
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