3-WAY TYPE CONTROL GLOBE VALVES
The design of PROVAL 3-Way control globe valves are generally used either to mix flowing medium or to divert on medium into two outlet flows, and are often used when fluid temperature is to be adjusted through heat exchangers.
Mixing-type valves also can be used for diverting service when both the nominal size pressure differential is small.
However, the mixing type is more suitable when the nominal size is larger than 4” and the pressure differential is also considerable.
Standard 3-Way valve combine diaphragm actuator with multi-spring.
FEATURES
- · LARGE CAPACITY
- · REASONABLE FLOW CHARACTERISTICS
- · DURABLITY
- · ECONOMICAL
- · EASY TO INSTALL & MAINTENANCE
SPECIFICATION
| Model No. |
Mixing |
YAD-12271 (RA Type), YAD-22271 (DA Type) |
| Diverting |
YAD-12281 (RA Type), YAD-22281 (DA Type) |
| Valve Type |
Diaphragm or Cylinder actuator operated 3-way globe control valve. |
| BODY |
Valve
Size |
(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
| (inch) |
½ |
¾ |
1 |
1 ¼ |
1 ½ |
2 |
2 ½ |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
| Pressure Rating |
ANSI 150#, 900# / JIS 10K~40K / JPI 150# ~ 900# |
| End Connections |
Flanged end: FF, RF, RTJ, M/F(female), T/G(female) ※Welding end: SW, BW |
| Body Materials |
A216-WCB, A351-CF8, CF8M, CF3M |
| Operating Temperature |
Standard Type: -20°C ~ 210°C |
Radiating Fin Type: Over 220°C |
Extension: -196°C ~ -20°C |
| Guide |
Top & Bottom, Cage Guide. |
| 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 % ) |
| Trim Materials |
SUS304 (STL.), SUS316 (STL.), SUS316L (STL.) |
| Treatment of Trim |
See “MATERIAL DATA” page 3 |
| PERFORMANCE |
Valve Action |
Direct action, Reverse action. |
Allowable
Differential Pressure |
See “ALLOWABLE PRESSURE DROP” page 8 |
| Rated Cv Value |
See “FLOW CHARACTERISTICS” page 7 |
| Flow Characteristics |
See “FLOW CHARACTERISTICS” page 6 |
| Rangeability |
30:1 (※ 50:1) |
Allowable Seat
Leakage Ratio |
Standard |
ANSI B16. 104 Class III
※Tight shut off: ANSI B16. 104 Class IV |
| Soft |
ANSI B16. 104 Class VI |
Action
Accuracy |
Hysteresis |
(Without positioner) max. 4% F.S.
(With positioner) max. 1% F.S. |
| Linearity |
(Without positioner) max. ±5% F.S.
(With positioner) max. ±1% F.S. |
| ACTUATOR |
Valve Size |
(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
| (inch) |
½ |
¾ |
1 |
1 ¼ |
1 ½ |
2 |
2 ½ |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
| Model |
A-220M ~ A-520M |
| Actuator Type |
Multi-spring diaphragm type. |
Actuator Size
(Diaphragm Size) |
Ø220 |
Ø270 |
Ø360 |
Ø430 |
Ø520 |
Cylinder Type |
| Max. Stroke (mm) |
20 |
20, 25 |
30, 40 |
55, 60 |
90 |
Over 100 |
Supply Air Pressure
kPa (kgf/cm²G) |
200 (2.0), 320 (3.2) |
- |
Spring Range
kPa (kgf/cm²G) |
20~98 (0.2~1.0), 40~200 (0.4~2.0) |
- |
| Action |
Direct action, Reverse action. |
| Materials |
Diaphragm: EPDM, York: FCD450 & A216-WCB, Case: Al-Alloy |
| Air Connection |
Rc 1/4 |
Rc 3/8 |
| Ambient Temperature |
-20℃ ~ +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.
DOCUMENTS & DRAWINGS
