• Butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN without feedback
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Parts

Butterfly valve WBV3131S-2W-W-H with pneumatic spring-return actuator

Spring-return · PA-SA-XXX · YT-1000RSN w/o feedback positioner · weld-end · AISI 304 body · silicone seal · PN10

Model WBV3131S-2W-W-H SKU D050-69578
$594.00 USD
$594.00 USD
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How it works

Spring-return rotary actuator

Spring-return rotary actuator: Air supplied
Air suppliedAir turns the shaft against the springs.
Spring-return rotary actuator: Air removed
Air removedThe springs return the shaft to its rest position.

Butterfly disc

Butterfly disc: Closed
ClosedThe disc stands across the bore.
Butterfly disc: Open
OpenThe disc turns into line with the flow.

Rotary positioner

Rotary positioner: Signal low
Signal lowThe drive holds one end position.
Rotary positioner: Signal mid
Signal midSignal and mechanical feedback set an intermediate position.
Rotary positioner: Signal high
Signal highThe drive holds the other end position.

The number that matters

Nominal pressure

10bar

The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.

Applications

Media and industries

  • Water
  • Steam
  • Neutral Media
  • Food Industry

Butterfly valves are designed for use as shut-off or regulating valves to control flows in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries. Operating principle: The valves are opened and closed by turning the disk by 90°. Opening is performed by turning the handle counterclockwise, closing - clockwise.
Pneumatic DNOVA double-acting rotary actuators PA-DA-XXX and pneumatic rotary actuators with return spring PA-SA-XXX are designed for automation of industrial valves control process with maximum torque up to 2128 Nm.
The electropneumatic rotary positioner is used for controlling pneumatic rotary actuators by means of an electric controller or control system with analog DC output signal range from 4 to 20 mA.
Operating principle: The positioner is based on the balancing of forces. The positioner uses a nozzle-flap type device and a feedback servomechanism (spring and lever system) to balance the control and feedback forces when the pneumatic actuator (valve) reaches the position corresponding to the control signal.

 

 

 

Technical characteristics of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN without feedback:

Characteristic

Value

Type of valve

Rotary disc

Diameter

15–100 mm

Nominal pressure

10 bar

Working medium temperature

From -50 to +180°C

Application

Food industry

Type of connection

Under weld

Type of control

Pneumatic actuator

Tightness class

A

Warranty

12 months


Technical data of pneumatic rotary actuators with return springs DNOVA PA-SA-XXX:

Characteristic

Value

Type of pneumatic actuator

With return springs

Actuator torque

14–30 Nm

Nominal pressure

12 bar

Operating pressure

2...8 bar

Maximum particle diameter

Less than 30 µm²

Working medium

Filtered compressed air or non-aggressive gases, oils

Adjustment range

±5° for rotation at 0° and 90°

Air supply

G1/4"

Working medium temperature

From -20 to +80 °C

 


Technical characteristics of electropneumatic rotary positioners DNOVA YT-1000RSN without feedback:

Characteristic

Value

Model of electropneumatic positioner

YT-1000RSN

Control signal input

4–20 mA

Internal resistance

250 ± 15 ohms

Input pressure

1.4–7 bar

Lever travel angle

0–90°

Compressed air connection thread

1/4"

Pressure gauge connection thread

1/8"

Cable gland

G1/2"

Protection rating

IP66

Operating temperature

From -20°C to +70°C

Permissible ambient humidity

10-90RH

Linearity

±1%

Hysteresis

±1%

Sensitivity

±0.2%

Repeatability

±0.5%

Compressed air consumption

3 l/min (at 1.4 bar pressure)

Air output flow

80 l/min (at 1.4 bar pressure)

Body material

Aluminum casting

 


Overall and installation sizes of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN without feedback:

Diameter D, mm t, mm D1, mm A, mm H, mm J, mm K, mm
DN15 18 1.5 78 50 86 126 8x8
DN20 23 1.5 78 50 86 126 8x8
DN25 29 1.5 78 50 86 126 8x8
DN32 35 1.5 86 50 90 126 8x8
DN40 41 1.5 90 50 92 126 8x8
DN50 53 1.5 106 52 104 133 10x10
DN65 70 2.0 124 56 113 144 10x10
DN80 85 2.0 139 60 123.5 160 10x10
DN100 104 2.0 159 64 133.5 160 10x10

 

 

Dimensions and mounting sizes of rotary pneumatic actuators DNOVA with return springs PA-SA-XXX:

Model A, mm B, mm C, mm D, mm E, mm F, mm G, mm M, mm N, mm O, mm P, mm
PA-DA(SA)-052 108 153 30 41 72 26 15 80 30 34 20
PA-DA(SA)-065 125 174 36 46 89 26 15 80 30 34 20
PA-DA(SA)-083 152 216 46 55 109 26 15 80 30 34 20
PA-DA(SA)-105 189 279 55 64 134 26 25 80 30 41 20
PA-DA(SA)-130 210 308 67.5 70 157 36 25 80 30 62 30
PA-DA(SA)-140 268 405 76 77 174 36 30 130 30 62 30
PA-DA(SA)-160 310 465 87.5 87.5 199 38 30 130 30 62 30
PA-DA(SA)-210 390 542 113 113 257 38 40 130 30 79 30
PA-DA(SA)-270 510 722 146 146 333 38 52 130 30 79 30

 

 

Overall and installation sizes of electropneumatic rotary positioners DNOVA YT-1000RSN without feedback:

A, mm 224.3
B, mm 165.5
C, mm 117.5
D, mm 132.3
E, mm 6
F, mm 122
G, mm 45
H, mm 45
I, mm 23
J, mm 27
K, mm 32.5
L, mm 35.5
M, mm 91.8
N, mm 37.2
O, mm 43.5
P, mm 26.5
Q, mm 33
R, mm 80.25
S, mm 62.5
T, mm 8

 

 

Materials of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN without feedback:

№ Part Name Material
1 Body Stainless steel AISI 304
2 Rotary unit Stainless steel AISI 304
3 Disc Stainless steel AISI 304
4 Seat seal EPDM or Silicon
5 Nut Steel A2~70
6 Bolt Steel A2~70
7 Plug ABS plastic
8 Handle Polyamide plastic



Construction of rotary pneumatic actuators DNOVA with return springs PA-SA-XXX:

№

Name

Quantity

Material

Coating

1

Body

1

Extruded aluminum

Hard anodized

2

Side plugs

2

Cast aluminum

-

3

Gear

1

Stainless steel

Nickel-plated

4

Piston

2

Steel/Aluminum

Oxidation/galvanized

5

Plugs

8

Stainless steel

-

6

Piston ring

2

NBR

-

7

Springs

0–12

Spring steel

Epoxy coating

8

Piston bearing

2

Engineering plastic

-

9

Piston ring

2

NBR

-

10

Plug

2

NBR

-

11

Thrust ring

2

Engineering plastic

-

12

Ring

1

Engineering plastic

-

13

Washer

1

Stainless steel

-

14

Spring clip

2

Stainless steel

-

15

Indicator

1

Plastic

-

16

Indicator body

1

Plastic

-

17

Bearing

1

Engineering plastic

-

18

Cam

1

Steel

Oxidation/ galvanized steel

19

Bearing

1

NBR

-

20

Bearing

1

Engineering plastic

-

21

Bearing

1

Engineering plastic

-

22

Sealing ring

2

NBR

-

23

Sealing ring

2

NBR

-

24

Bearing

2

Stainless steel

-

25

Adjustment nut

2

Stainless steel

-

26

Adjustment screw

2

Stainless steel

-

27

Bushing

2

Aluminum

-

 

Body material
Stainless steel AISI 304
Maximum allowable temperature
180 °C
Connection type
For welding
Control type
Pneumatic actuator
Operating environment
Water, Steam, and Neutral Media
Applications
Food Industry
Nominal pressure
10 bar
Type of seal
Silicone
Disc material
Stainless steel AISI 304
Country of origin
China

Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.

Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.

To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.

Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.

Full shipping policy

Variant Variant total Quantity Price Variant total
DN100D050-69578
DN100D050-69578
$594.00/ea		 $0.00
$594.00/ea $0.00
DN15D050-69570
DN15D050-69570
$505.00/ea		 $0.00
$505.00/ea $0.00
DN20D050-69571
DN20D050-69571
$505.00/ea		 $0.00
$505.00/ea $0.00
DN25D050-69572
DN25D050-69572
$505.00/ea		 $0.00
$505.00/ea $0.00
DN32D050-69573
DN32D050-69573
$506.00/ea		 $0.00
$506.00/ea $0.00
DN40D050-69574
DN40D050-69574
$508.00/ea		 $0.00
$508.00/ea $0.00
DN50D050-69575
DN50D050-69575
$521.00/ea		 $0.00
$521.00/ea $0.00
DN65D050-69576
DN65D050-69576
$559.00/ea		 $0.00
$559.00/ea $0.00
DN80D050-69577
DN80D050-69577
$576.00/ea		 $0.00
$576.00/ea $0.00
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Total items

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Product subtotal

Taxes included. Discounts calculated at checkout. Freight is quoted by our manager after you order.
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