We will continue exerting our utmost effort to manufacture quality product to cope with the needs of the customers through the research and development based on the technology we have.
The PROVAL cage balanced control valves are designed for heavy duty service.
The valves plug is of a pressure-balanced type that permits flow control of a high differential pressure with bellows seal, extension, fin, jacket bonnet.
Standard actuators are multi-spring diaphragm actuator.
| Model No. | YAD-12231(cage single) / YAD-12241(Cage double) - RA Type, YAD-22231(cage single) / YAD-22241(Cage double) - DA Type |
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| Valve Type | Diaphragm or Cylinder Actuator operated Globe control valve. | |||||||||||||||||
| BODY | Valve Size | (mm) | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | ||
| (inch) | 1 ½ | 2 | 2 ½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | ||||
| Pressure Rating | ANSI 150# ~ 4500# / JIS 10K ~ 63K | |||||||||||||||||
| End Connections | Flange end: FF, RF, RTJ, M/F(female),T/G(female) ※Welding end: SW, BW | |||||||||||||||||
| Body Materials | A216-WCB, A351-CF8, CF8M, CF3M | |||||||||||||||||
| Operating Temperature |
Single | Standard Type: -20°C ~ 210°C Extension: -100°C ~ -20°C | ||||||||||||||||
| Double | Only fin bonnet type: over 220°C | |||||||||||||||||
| Guide | Cage Guide | |||||||||||||||||
| Gland Packing | V-PTFE, PTFE yarn, Graphite yarn | |||||||||||||||||
| Gasket | SUS316 + Graphite spiral wound, other alloy steels. | |||||||||||||||||
| Painting Color | Standard is silver. In the case of stainless steel, flange is not painted. | |||||||||||||||||
| Plug Characteristics | Linear, Equal %. | |||||||||||||||||
| Cage Type | Single | Single metal Seated and Hi-Seal. | ||||||||||||||||
| Double | Double metal Seated. | |||||||||||||||||
| Flow Direction | FTC ( Flow Action to Close ) | |||||||||||||||||
| Trim Materials | SUS630 (H.T), SUS304 (STL.), SUS316 (STL.), SUS316L (STL.) | |||||||||||||||||
| Treatment of Trim | See “MATERIAL DATA” page 3 ~ 5 | |||||||||||||||||
| PERFORMANCE | Control Mode | Throttling control, On-off control. | ||||||||||||||||
| Valve Action | Direct action, Reverse action. | |||||||||||||||||
| Allowable Differential Pressure |
See “ALLOWABLE PRESSURE DROP” page 7 | |||||||||||||||||
| Rated Cv Value | See “FLOW CHARACTERISTICS” page 5 | |||||||||||||||||
| Flow Characteristics | See “FLOW CHARACTERISTICS” page 6 | |||||||||||||||||
| Rangeability | 50A ~ 200A ( 50 : 1 ) , 250A over ( 30 : 1 ) | |||||||||||||||||
| Allowable Seat Leakage Ratio |
Metal Seat | Control | Single | 0.01% of rated Cv (ANSI B16. 104 Class IV) ※Tight shut off-0.005% |
0.01% of rated Cv (ANSI B16. 104 Class IV) | |||||||||||||
| Double | 0.1% of rated Cv (ANSI B16. 104 Class III) ※Tight shut off-0.01% |
0.1% of rated Cv(ANSI B16. 104 Class III) | ||||||||||||||||
| On-Off | Single | 0.005% of rated Cv (ANSI B16. 104 Class Ⅳ Over.) |
0.01% of rated Cv | |||||||||||||||
| Double | 0.01% of rated Cv(ANSI B16. 104 Class Ⅳ) | 0.05% of rated Cv | ||||||||||||||||
| Soft Seat | Control & On-Off |
Single & Double |
ANSI B16. 104 Class VI | |||||||||||||||
| Action Accuracy |
Hysteresis | (Without positioner) max. 4% F.S. (With positioner) max. 1% F.S. |
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| Linearity | (Without positioner) max. ±5% F.S. (With positioner) max. ±1% F.S. |
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| ACTUATOR | Valve Size | (mm) | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | ||
| (inch) | 1 ½ | 2 | 2 ½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | ||||
| Model | A-270M, A-360M, A-430M, A-520M or Cylinder type | |||||||||||||||||
| Actuator Type | Multi-spring diaphragm type. or Cylinder type | |||||||||||||||||
| Actuator Size (Diaphragm Size) | Ø270 | Ø360 | Ø430 | Ø520 | CYLINDER TYPE | |||||||||||||
| Max. Stroke (mm) | 30 | 45 | 65 | 90 | OVER 100mm | |||||||||||||
| Supply Air Pressure kPa (kgf/cm²G) |
140 (1.4), 240 (2.4), 280 (2.8), 320 (3.2) | (300~700) 3.7~7.0 | ||||||||||||||||
| Spring Range kPa (kgf/cm²G) |
20~98 (0.2~1.0), 40~200 (0.4~2.0) 60~220 (0.6~2.2), 80~240 (0.8~2.4) |
200~300 (2.0~3.0) 250~350 (2.5~3.5) |
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| Action | Direct action, Reverse action. | |||||||||||||||||
| Materials | Diaphragm: EPDM, York: A216-WCB, FCD Case: Al-Alloy, SS41 and STKM Cylinder | |||||||||||||||||
| Air Connection | Rc 1/4″ (※ Rc 3/8” ~ RC1) | |||||||||||||||||
| Ambient Temperature | -20°C ~ +70°C (※ -50°C ~ -20°C, +70°C ~ +100°C) | |||||||||||||||||
| Painting Color | Standard is Cobalt Blue(Munsell No : 2.5 PB3/10 ) [Request other color] | |||||||||||||||||
[Notes]
(1) Valve performance is represented under the condition of standard packing (V-PTFE).
(2) ※: Manufactured and attached as according to customer’s order.
(3) Please contact us as to the high pressure rating ANSI classes 900, 1500 and 2500 valves.