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 single soft seat control valves are designed for compact and leakage zero (Metal seat : ANSI Class Ⅳ std. tight sut off : Ⅴ). The valve simple construction having low pressure loss, high accuracy flow characteristics.
The flow shut-off performance complies with the JIS standards. Standards combined actuators are Cylinder & Diaphragm actuator is standard application.
| Model No. | Cylinder Act. | YAC-31211(Single Seat), YAC-31231(Cage Quick change type), YAC-31281(3-Way Type) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Diaphragm Act. | YAD-112Q1 / 11231(R.A), YAD-212Q1 / 21231(D.A) | ||||||||||
| Valve Type | Pneumatic diaphragm or cylinder operated on-off globe valve. | ||||||||||
| BODY | Valve Size |
(mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 |
| (inch) | 1 | 1 ¼ | 1 ½ | 2 | 2 ½ | 3 | 4 | 5 | 6 | ||
| Pressure Rating | ANSI 150#~4500# / JIS 10K ~ 63K | ||||||||||
| End Connections | Flanged end: FF, RF | ||||||||||
| Body Materials | FC20, A216-WCB, A351-CF8, A351-CF8M | ||||||||||
| Operating Temperature | -15°C ~ +170°C ※ Metal touch: -15°C ~ 230°C |
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| Guide | Top guide , Top & Bottom guide Guide | ||||||||||
| Gland Packing | V-PTFE, PTFE yarn, Graphite yarn | ||||||||||
| Gasket | Asbestos (#T1500), SUS316+Graphite spiral wound | ||||||||||
| Painting Color | Standard is silver. In the case of stainless steel, flange is not painted. | ||||||||||
| Plug Characteristics | Quick opening (※ P-Port ) | ||||||||||
| Trim Materials | Soft : RTFE, Metal : SUS304(Stellited), SUS316(Stellited) | ||||||||||
| PERFORMANCE | Rated Cv Value | See “Cv VALUES” page 4 | |||||||||
| Allowable Differential Pressure |
See “ALLOWABLE PRESSURE DROP” page 4 | ||||||||||
| Allowable Seat Leakage Ratio |
Standard (Soft) | Leakage zero (ANSI B16. 104 Class VI) | |||||||||
| Metal | ANSI B16. 104 Class IV ※ Tight shut off: ANSI B16. 104 Class V |
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| ACTUATOR | Actuator Type | Multi-spring diaphragm actuator | Double Action Cylinder actuator | ||||||||
| Model | A-220M, A-270MS | C-100 ~ C-500 | |||||||||
| Actuator Size (Diaphragm Size) | Ø220 | Ø270 | Ø100 ~ Ø485 | ||||||||
| Max. Stroke (mm) | 20 | 25 | 20 ~ 60 | ||||||||
| Supply Air Pressure kPa (kgf/cm²G) |
320 (3.2) | 350 (3.5) | 300 (3.0) ~ 700 (7.0) | ||||||||
| Spring Range kPa (kgf/cm²G) |
80~40 (0.8~2.4) | 120~280 (1.2~2.8) | - | ||||||||
| Materials | Diaphragm : EPDM, Case : Al-Alloy Cylinder: STKM, Cover: SS41, Shaft & Stud-Bolt : SUS304 | ||||||||||
| Air Connection | Rc 1/4 | Rc 1/4 ~ Rc 1/2 | |||||||||
| Ambient Temperature | -20°C ~ +70°C (※ -50°C ~ -20°C, + 70°C ~ + 100°C) |
-20°C ~ +70°C (※ 0°C ~ +100°C) |
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| Painting Color | Standard is red. (Request other color) | Standard is silver. (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.