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Control Valves
Control Valves
Model DV & TV & LV Series, Butterfly Control Valves
The Valution DV & TV & LV series are high-performance butterfly control valves designed to deliver precise modulation, even under fine signal fluctuations. The valve design minimizes the contact area between the disc/stem and the seat/body during rotation, reducing wear and improving control accuracy.
- DV : Double Offset Butterfly Valve
- TV : Triple Offset Butterfly Valve
- LV : Lined Butterfly Valve
These valves has a concentric and double or triple eccentric trim structures with a streamlined internal flow path. This configuration provides superior performance in clean service conditions, while also offering excellent durability and flow control in corrosive and slurry applications.
Due to the nature of the eccentric disc design, the valves inherently deliver a non-linear, S-shaped flow curve, ideal for modulating control in demanding process environments.
Seat options include both metal and soft-seated configurations, supporting compliance with ANSI/FCI 70-2 leakage classes IV, V, and VI, based on the sealing requirements of the application.
The straight-through body design ensures low flow resistance and provides sufficient clearance around the trim for improved flow dynamics and maintenance access.
The DV & TV & LV series support a wide range of actuator types, including: Spring-diaphragm actuators, Pneumatic cylinders, Electric motor actuators.
These valves are primarily designed for modulating service, and are compatible with: Conventional E/P positioners, Smart positioners, HART communication protocols.
Butterfly Control Valves, Model Selection
- V70
- -
- DV
- 1
- 1
- 1
- 1
| Actuator Type | Model | Body Type | Trim Type | Flow Characteristics | Plug Type |
|---|---|---|---|---|---|
| V40. Spring Diaphragm V50. Spring Cylinder Rack & Pinion V60. Cylinder, Double Rack & Pinion V70. Spring Cylinder Scotch Yoke V80. Cylinder, Double Scotch Yoke V90. Electric Motor V01. Other Type |
DV TV LV |
1. Wafer (Flangeless) 2. RF Flanged 3. Lug 4. Other |
0. Undefined 1. Soft Seat / Metal Disc 2. Metal Seat / Metal Disc 3. Metal+Graphite Seat / Metal Disc 4. Lined Seat / Lined Disc 5. Other |
0. Undefined 1. Butterfly (S-shaped) 2. Modified Linear 3. EQ-% (* 2 & 3 Option) 4. Other |
0. Undefined 1. Double Offset 2. Triple Offset 3. Concentric 4. Other |
DV1, 150# CF8M Butterfly Control Valve with V70 Actuator
Model DV, High-Performance Eccentric Butterfly Control Valves
| Product Name | Double Offset Butterfly Valve |
|---|---|
| Design | API 609/ASME B16.34 |
| End Connection | Wafer/Lug/Double Flanged |
| Operation | Pneumatic & Electric |
| Size Range | NPS 2"-48" (DN50-DN1200) |
| Pressure Rating | ASME Class150-300-600(PN16-PN25-PN40) |
| Body Material | Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel |
| Seat Material | PTFE, RPTFE, PPL |
| Temperature | -29°C to 250°C |
TV2, 300# CF8M Butterfly Control Valve with V70 Actuator
Model TV, Triple Off-set Butterfly Control Valves
| Product Name | Triple Offset Butterfly Valve |
|---|---|
| Design | API 609/ASME B16.34 |
| Fire Safe | API 607, BS 6755 |
| End Connection | Wafer/Lug/Double Flanged |
| Operation | Pneumatic & Electric |
| Size Range | NPS 3"-48" (DN80-DN1200) |
| Pressure Rating | ASME Class150-300-600(PN16-PN25-PN40) |
| Body Material | Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel |
| Seat Material | 316(L)SS+Graphite, PTFE, RPTFE, PPL |
| Temperature | -100°C to 538 °C |
LV1, Lined Butterfly Control Valve with V50 Actuator
Model LV, Lined Butterfly Control Valves
| Size Range | 1.5"(DN40) ~ 20" (DN500) (other sizes are available) |
|---|---|
| Pressure Range | ASME 150# |
| Temperature Range | -30 +180 °C... according to lined materials |
| Body Materials | A351 CF8, CF8M |
| Lining Materials | ETFE, PFA, PTFE, FEP, EPDM, NBR & others |
| Trim Design | Concentric Butterfly |
| Trim Characteristics | Butterfly, Quick Open |
| Cv Ratio | 50: 1(standard) |
| Seat Leakage Class | ANSI/FCI 70-2, Class V, VI... according to the spec. |
| Applicable Actuators | Pneumatic Cylinder, Electric Motor, others |
| Applicable Instruments | P/P & E/P & Smart Positioners, SOV & other Relays |
| Options | Handwheel, Limit Stopper, Special NDT |