| SIEMENS | 4363 |
|---------|------|

|   | External thread connection two-way valve, pressure grade PN16 |
|--------|---------------------------------------------------------------|

|   | l | Valve body: bronze Rg5 |
|--------|---|------------------------|

|   | l | Nominal diameter: DN15...DN50mm (1⁄2”...2’’) |
|--------|---|---------------------------------------------------------------------------|

|   | l | Flow rate: kvs 0.63...40m3/h |
|--------|---|----------------------------------|

|   | l | Stroke of valve handle: 20 mm |
|--------|---|-------------------------------|

|   | l | Can be mounted with the SQX..., SKD... and SKB...series of actuator. |
|--------|---|----------------------------------------------------------------------------------|

|   | l | Accessories can be ordered independently |
|--------|---|------------------------------------------|

| Purpose | Be applicable in heating system, domestic water system and heating, ventilating and air conditioning system as the control valve or safety shutoff valves that comply with DIN32730 Standard. Be applicable for both open system and closed system. |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Media | The standard valves that adopt the galvanized valve handle seal material are applicable to the following media: |
|-------|-----------------------------------------------------------------------------------------------------------------|

|   | Cooling water                              |                 |
|--------|--------------------------------------------|----------------------|
|   | Chilled water                              |                 |
|   | Low temperature hot water                  |                 |
|   | Domestic water                             |                 |
|   | High temperature hot water                 | -25...+130 ̈ |
|   | Anti-freezing water 1)2)                   |                 |
|   | Saturated steam (the maximum 1.5 bar abs.) |                 |   |
|   | Brine 1)2)                                 |                 |

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|   | 1) | When the media temperature is lower than 0°C, ASZ6.5 valve handle heating element is needed to prevent the valve handle within sealing gland from freezing. |
|--------|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2) | Anti-freezing water and brine: the minimum temperature -10°C complies with DIN 3158 Standard (pressure vessel I) or the minimum temperature -25°C complies with DIN 3158 Standard (pressure vessel II). |
|--------|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   |   | The special refrigeration valve with electromagnetic actuator is applicable to refrigerant R.... See technical data 4700_4799. |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------|

| Model                                    | DN                    | kVS[m3/h]                                                         | Sv               |  ̈Pvmax.[kPa] |
|------------------------------------------|-----------------------|-------------------------------------------------------------------|------------------|-------------------|
| [mm]                                     | [Inch]                |
| VVG41.11VVG41.12VVG41.13VVG41.14VVG41.15 | 15/2.515/415/615/1015 | 1⁄2”1⁄2”1⁄2”1⁄2”1⁄2” | 0.631.01.62.54.0 | >50            | 800 |
| VVG41.20VVG41.25VVG41.32VVG41.40VVG41.50 | 2025324050            | 3⁄4”111⁄4”11⁄2”2”                | 6.310162540      | >100           |

|        |         | DN= nominal diameter                                                                                                                                           |
|-------------|--------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|
|        |         | kVS = rated flow that conforms to VDI 2173 Standard                                                                                                            |
|        |         | Sv = flow capacity that conforms to VDI 2173 Standard                                                                                                          |
|        |         |  ̈P vmax..= maximum allowable differential pressure between two ends of valves, when the valve handle reaches the maximum stroke (the valve is fully open) |
|        |         |                                                                                                                                                           |
| Accessories |    | Electronic valve handle heating element, AC 24V; when the medium temperature is lower than 0 ̈, select ASZ6.5                                              |

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|   |   |                                        |
|--------|--------|---------------------------------------------|
| Order  |   | Please describe the model.                  |
|   |   | For example: VVG41.25                       |
|   |   | The accessories must be ordered separately. |

| Transportation |   | The valve, actuator and the required accessories are packaged and supplied separately. |
|----------------|--------|----------------------------------------------------------------------------------------|
|           |   |                                                                                   |

| Valve                                    |   H100[mm]      | Actuator 1)           | Accessories  Model |
|------------------------------------------|---------------------------|-----------------------|------------------------------|
| SQX...2)                             | SKD...                | SKB                   |
| △Pmax                              | △Ps                 | △Pmax           | △Ps                    | △Pmax | △Ps |
| [kPa]                                    |
| VVG41.11VVG41.12VVG41.13VVG41.14VVG41.15 |    20      |    800 |    1600       |    800 |    1600 |    800 |    1600 |  ALG15 |
| VVG41.20VVG41.25VVG41.32VVG41.40VVG41.50 | ALG20ALG25ALG32ALG40ALG50 |
| 1500                                     |
| 600400250                                | 850500300                 | 1250750450            |
| 700400                                   |
| 1200                                     |
| Technical data                           | 4554                      | 4561                  | 4564                         |   |

| 1)                 |                                                                      | Optional actuator:                                                                                                                                      | ● | AC 24V/AC 230V power source, three-position control signal                |
|--------------------|---------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|---------|---------------------------------------------------------------------------|
|               |                                                                      |                                                                                                                                                    | ● | AC 24V scale (position) control signal DC 0...10V or DC 4...20 mA |
| 2)                 |                                                                      |  ̈Pmax and  ̈P values are applicable for SQX32.../SQX82...and SQX62 new actuator, and the delivery can be available from January, 1999. |
|               |                                                                      |                                                                                                                                                    |
| H100               |                                                                      | = 100% stroke of valve and actuator                                                                                                                     |
| △Pmax        |                                                                      | = maximum allowable differential pressure between both ends of valve, when the actuator can maintain normal operation within the whole stroke           |
| △Ps          |                                                                      | = maximum allowable differential pressure (shut-off pressure) between both ends of valve, on the premise of ensuring the actuator can be closed safely  |
| Pneumatic actuator | The pneumatic actuator can be ordered from the local office, if required. |
|               |                                                                      |

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| Mechanical designValve profile |  | Pilot parabola valve plug and  valve handle are integrated. Valve seat is attached to valve body through special seal material directly. |
|-------------------------------------|--|----------------------------------------------------------------------------------------------------------------------------------------------------|

|          | Note: the two-way seat valve cannot be used as three-way valve by loosening the screw nut and removing the blank flange at the bottom of valve.       |
|----------|-------------------------------------------------------------------------------------------------------------------------------------------------------|
|     |                                                                                                                                                  |
| Disposal | Due to the use of different types of materials, before discarding, do disassemble the valves, and classify them in terms of different material types. |

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|  |  Valve flow characteristics0...30%  => linear30...100%=> comply with VDI/VDE2173 Standard, ngl=3 |
|--|-------------------------------------------------------------------------------------------------------------------------------|

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|   | The operating pressure range complies with ISO 7268 and EN 1333 Standards.                             |
|--------|--------------------------------------------------------------------------------------------------------|
|   | The operating temperature range (-25...+130°C) complies with DIN 4747 and DIN 3158 Standards. |

| Engineering | It is suggested that the valve be mounted on the return water pipe, because in the heating system, the temperature of return water pipe is relatively low. In this way, the service life of valve spool seal can be extended.                                                                                                                                       |
|-------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|        |                                                                                                                                                                                                                                                                                                                                                                |
|        | The water quality shall comply with VDI 2035 Standard.                                                                                                                                                                                                                                                                                                              |
|             | In the open system, it is possible that the valve plug may be locked due to the deposit of water scale (the valve handle cannot rise and fall normally). Thereby, such kind of application shall select SKB or SKC series of actuator with large driving force. Besides, the valve handle must be driven to operate regularly (at least two or three times a week). |
|        | Note: the valve upstream must be mounted with the filter.                                                                                                                                                                                                                                                                                                           |
|        | It is often suggested that in the closed system, the filter be mounted in front of valve, so as to increase the operational reliability of valve.                                                                                                                                                                                                                   |

|          | When the medium temperature is lower than 0 ̈, select ASZ6.5 electronic valve handle heating element to prevent the valve spool within the sealing gland from freezing. For the sake of safety, the operating voltage of this heating element is designed AC 24V, and its power is 30 W. |
|----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Mounting | The valve and actuator can be assembled in the mounting position simply, independent of special tools and any adjustment.                                                                                                                                                                    |
|     | The valve shall be attached with the Instruction for Mounting before leaving the factory.                                                                                                                                                                                                    |

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|   | Allowed  | Forbidden |
|--------|---------------|-----------|

| Direction of water flow | During the mounting, pay attention that the mark of water current direction on the valve shall be consistent with the |
|-------------------------|-----------------------------------------------------------------------------------------------------------------------|
|                    | actual water current direction.                                                                                       |  |

| Debugging |        | Debug the valve only after the actuator has been mounted correctly.                                                                                                                                                                                                                                                                                                                                                         |
|-----------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      |   | Valve handle contracts:                                                                                                                                                                                                                                                                                                                                                                                                     | flow increases |
|      |   | Valve handle extends:                                                                                                                                                                                                                                                                                                                                                                                                       | flow decreases |
|      |   |                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Repair    |        | When repairing the actuator, comply with the following sequences: first turn off the water pump and cut off the water pump power source; close the stop valve, drain the water within the water pipe in order to reduce the pressure within water pipe, and cool the hot water pipe naturally. Remove the electrical wiring from connection terminal. Before re-debugging the valve, correctly mount the actuator properly. |

| Seal of valve handle | When the water pipe has de-pressurized and is cooled fully, and the valve handle surface is in good condition, it is allowed to replace the seal of valve handle directly, without removing the valve body. If the valve handle has been damaged, replace the whole valve handle-valve plug assembly. Please contact the local office of Siemens Building Technologies. |
|----------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Accessories    |                                                                                                                   |                                                                                                                                                                                                          |
|----------------|------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Standard model |                                                                                                                        | Used to replace EPDM-O ring, including copper seal gasket, and used for -25...+130°C cooling water, chilled water, low temperature hot water, high temperature hot water, saturated steam and brine. |
|           | Applicable to VVG41...series of valve, pipe diameter DN15...DN50 (diameter of valve handle 10 mm) 4 284 8874 0 |

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| Guarantee | The valves shall not be guaranteed if the actuator is manufactured the third manufacturer.                                                                                                                                     |
|-----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      | The technical data, including △Pmax, △Ps, leakage rate, noise index and lifetime are only applicable to the corresponding actuators of Siemens Building Technologies included in the “Model overview”. |
|      |                                                                                                                                                                                                                           |

| Technical data       |   |                       |   |                                                                                                 |
|----------------------|--------|----------------------------|--------|------------------------------------------------------------------------------------------------------|
| Functional parameter |   | PN (pressure) grade        |   | PN16                                                                                                 |
|                 |   | Valve flow characteristics |   |                                                                                                 |
|                 |   | 0...30%                |   | Linear                                                                                               |
|                 |   | 30...100%              |   | ngl=3, comply with VDI / VDE 2173 Standard                                                           |
|                 |   | Leakage rate               |   | kvs 0...0.02%, comply with VDI / VDE 2173 Standard                                               |
|                 |   | Allowable working pressure |   | Within -25...+130, 1600KPa (16 bar), comply with ISO 7268 / EN 1333 /DIN 4747 / DIN3158 Standard |
|                 |   | Flange connection          |   |                                                                                                 |
|                 |   | Valve                      |   | G...B, comply with ISO 228/1 Standard                                                            |
|                 |   | Accessories                |   | Rp..., comply with ISO 7/1 Standard                                                              |
|      |   | Stroke                         |   | 20mm                                                           |
|-----------|--------|--------------------------------|--------|----------------------------------------------------------------|
|      |   |                           |   |                                                           |
| Material  |   | Valve body                     |   | Bronze G-CuSn5ZnPb (Rg5), in accordance with DIN 1705 Standard |
|      |   | Valve seat, plug and hanle     |   | Stainless steel                                                |
|      |   | Seal ring                      |   | Galvanized brass                                               |
|      |   | Seal material                  |   | EPDM-O ring                                                    |
|      |   | Accessory ALG                  |   | Malleable iron                                                 |
|      |   |       |
| Dimension |   | Unit of all dimensions: mm     |

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