| SIEMENS | 4362 |
|---------|------|

|  | Two-Way/Three-Way Seat Valve    VVI41... Internal Thread Connection, PN16  VXI41... |
|--|--------------------------------------------------------------------------------------------------------------------------------|

|   | l | Valve body: bronze CCC491K (Rg5)                                  |
|--------|---|-------------------------------------------------------------------|
|   | l | Nominal diameter: DN15...DN50                                 |
|   | l | Flow rate: 2.5...40m3/h                                       |
|   | l | Internal thread connection Rp... complies with ISO 7/1        |
|   | l | Can be mounted with the SQX..., SKD...series of actuator. |

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

| Media  |   | Standard edition:                                       |                  |
|--------|--------|---------------------------------------------------------|-----------------------|
|   |   | Chilled water                                           |                  |
|   |   | Cooling water                                           |                  |
|   |   | Low temperature hot water                               |                  |
|   |   | High temperature hot water                              | -25...+140oC |
|   |   | Anti-freezing water 1)                                  |                  |
|   |   | Saturated steam (the maximum 1.5 bar absolute pressure) |                  |
|   |   | Brine 1)                                                |                  |

|   | 1) | When the media temperature is lower than 0oC, SZ6.5 valve handle heating element is needed to prevent the valve handle within sealing gland from freezing. Anti-freezing water and brine: the minimum temperature -25oC complies with DIN 3158 Standard (pressure vessel I). |
|--------|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

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| Model overview |
|----------------|

| ModelTwo-way valve | ModelThree-way valve | DN(mm) | kVS[m3/h] | Sv      |
|--------------------|----------------------|--------|-----------|---------|
| VVI41.15-2.5       | VXI41.15-2.5         | 15     | 2.5       | >50  |
| VVI41.15-4         | VXI41.15-4           | 15     | 4.0       |
| VVI41.20-6.3       | VXI41.20-6.3         | 20     | 6.3       | >100 |
| VVI41.25-10        | VXI41.25-10          | 25     | 10        |
| VVI41.32-16        | VXI41.32-16          | 32     | 16        |
| VVI41.40-25        | VXI41.40-25          | 40     | 25        |
| VVI41.50-40        | VXI41.50-40          | 50     | 40        |

|   | DN=              | nominal diameter                                                                                                                                                                                       |
|--------|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | kVS =  | Rated flow. It is defined the cubic meters of the valve that 5...30oC water flows by per hour, when the valve is fully open and the differential pressure of valve is 100Kpa before and after |
|   | Sv  =  | Rangeability kvs/kvr. Comply with VDI 2173 Standard                                                                                                                                                    |
|   | kVr =            | Minimum flow rate that still maintains the regulation characteristics when the differential pressure is 100kPa (1 bar)                                                                                 |

| Accessories    |   | Electronic valve handle heating element, AC 24V; when the medium temperature is lower than 0oC, select: ASZ6.5                                                                         |
|----------------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|           |   |                                                                                                                                                                                        |
| Order          |   | Please describe the quantity, product name and model when ordering. SQX... and SKD... series of actuator must be ordered separately. For example, six three-way valves, VXI41.25-10 |
|           |   |                                                                                                                                                                                        |
| Transportation |   | The valve and actuator are packaged and supplied separately.                                                                                                                                |

| Combining equipment |
|---------------------|

| Valve            | SQX...         | SKD...       |
|------------------|--------------------|------------------|
| △Pmax[kPa] | △Pmax1)[kPa] | △Ps2)[kPa] | △Pmax.[kPa] | △Pmax1)[kPa] | △Ps2)[kPa] |
| VVI41.15-2.5     | VXI41.15-2.5       | 400              | 100 | 1600 | 400 | 100 | 1600 |
| VVI41.15-4       | VXI41.15-4         |
| VVI41.20-6.3     | VXI41.20-6.3       |
| VVI41.25-10      | VXI41.25-10        | 1550             |
| VVI41.32-16      | VXI41.32-16        | 875              | 1275 |
| VVI41.40-25      | VXI41.40-25        | 525              | 775 |
| VVI41.50-40      | VXI41.50-40        | 300              | 300 | 450 |
| Technical data   | 4554               | 4561, 4563       |

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

|   | 1)     | When diverting three-way valve, it is suggested △Pmax be 100kPa. If the noise is omitted, △Pmax shall be identical with that of flow collecting. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                         |
|   | 2)     | Only be valid for two-way valve.                                                                                                                             |

|   | △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 |
|--------|------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|

| Actuator | Model           | Operating voltage | Control signal | Spring return function | Positioning time | Driving force |
|----------|-----------------|-------------------|----------------|------------------------|------------------|---------------|
| SQX32.00 | Electrical      | AC 230V           | 3-position     | None                   | 150 s            | 700N          |
| SQX32.03 | 35 s            |
| SQX82.00 | AC 24V          | 150 s             |
| SQX82.03 | 35 s            |
| SQX62    | DC0...10V1) | 35 s              |
| SKD32.50 | Hydraulic       | AC 230V           | 3-position     | None                   | 120 s            | 1000N         |
| SKD32.21 | Yes             | 30 s              |
| SKD32.51 | Yes             | 120 s             |
| SKD82.50 | AC 24V          | None              | 120 s          |
| SKD82.51 | Yes             | 120 s             |
| SKD60    | DC0...10V1) | None              | 30 s           |
| SKD62    | Yes             | 30                |

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

|   | 1) Or DC 4...20mA/0...1000Ω |
|--------|-----------------------------------------------|

| Pneumatic actuator   | The pneumatic actuator can be ordered from the local office, if required. |
|-------------------------------------|---------------------------------------------------------------------------|

|   |  | When assembling the pneumatic actuator, VXI41... three-way valve can only be used as flow collecting valve. |
|--------|--|-----------------------------------------------------------------------------------------------------------------|

| Model selection |
|-----------------|
| Flow rate graph |

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

| △Pvmax.      | =  | ifferential pressure of valve before and after the valve is fully open |
|------------------------------|---------|------------------------------------------------------------------------|
|                         |    |                                                                   |
| V100     | =       | low rate when the valve is fully open (H100)                           |
|                         |    |                                                                   |
| 100 kPa       | =       |  bar ≈10 mWG                                                |
|                         |    |                                                                   |
| 1 m3/h             | =       | .278 l/s when the water temperature is 20oC.                      |

| Valve flow characteristics |
|----------------------------|

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

| Mechanical design |
|-------------------|

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

|  |   | The two-way valve cannot be used as three-way valve by disassembling the blank flange at the bottom of valve. |
|--|--------|---------------------------------------------------------------------------------------------------------------|

| Notices     |   |                                                                                                                                                                                                                                                                                          |
|-------------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|        |   |                                                                                                                                                                                                                                                                                          |
| 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.                                                                                                                                                                                                                                        |
|             |   | It is suggested the filter be mounted in front of valve to increase the safety function of valve.                                                                                                                                                                                             |
|        |   |                                                                                                                                                                                                                                                                                          |
|             |   | When the medium temperature is lower than 0oC, 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. |
|        |   | VXI41... three-way valve is preferred as flow collecting valve.                                                                                                                                                                                                                           |
| Mounting    |   | The valve and actuator can be assembled in the mounting position simply, without special tools and adjustment.                                                                                                                                                                                |
|        |   | Instruction for Mounting shall be attached with when the valve is delivered. Its number is 74 319 0423 0.                                                                                                                                                                                     |

| Mounting position |
|-------------------|

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

| Flow direction of media | During the mounting, pay attention to the mark of water current direction on the valve: |
|-------------------------|-----------------------------------------------------------------------------------------|

|   | Two-way | three-way mixing | three-way diverting |
|--------|---------|------------------|---------------------|
|   |    |             |                |
|   |         |                  |                     |

| Debugging |  | Debug the valve only after the actuator has been mounted correctly. |
|-----------|--|---------------------------------------------------------------------|

|   |  |  |   |
|--------|--|--|--------|

|   | Valve handle contracts: flow increases, the pass valve open, bypass valve closed |
|--------|----------------------------------------------------------------------------------|
|   | Valve handle extends: flow decreases, the pass valve closed, bypass valve open   |

| 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, mount the actuator properly. |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                              |
|   |   | When the water pipe has de-pressurized and 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 or branch of Siemens Building Technologies.                                    |

| Accessories    |   |                                                                                                                                                                                                                                                                                                                                    |
|----------------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Standard model |        | Used to replace EPDM-O ring, including copper surface seal, and used for -25...+140oC cooling water, chilled water, low temperature hot water, high temperature hot water, saturated steam and brine.Applicable to VVI41...and VXI41... DN15...DN50 (diameter of valve handle 10 mm)   4 284 8874 0 |

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

| Disposal |   |
|----------|--------|

|  | Before discarding, the valve must be split into various parts in terms of material type.Comply with all local and industrial environmental protection regulations. |
|--|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Guarantee |                                                                                                                                |
|-----------|-------------------------------------------------------------------------------------------------------------------------------------|
|      | The technical data of valve are only applicable to the corresponding actuators included in the “Equipment combination”. |
|      | The valves shall not be guaranteed if the actuator is manufactured the third manufacturer.                                          |

| Technical data |   |
|----------------|--------|

| Operating data | PN (pressure) grade        | PN16                                                                            |
|----------------|----------------------------|---------------------------------------------------------------------------------|
|           | Valve flow characteristics |                                                                            |
|           | Pass                       |                                                                            |
|           | 0...30%                | linear                                                                          |
|           | 30...100%              | ngl=3, comply with VDI / VDE 2173 Standard                                      |
|           | Bypass (VXI41)             |                                                                            |
|           | 0...100%               | linear                                                                          |
|           | Leakage rate               | comply with DIN EN 1349 Standard                                                |
|           | Pass                       | kvs 0...0.02%                                                               |
|           | Bypass (VXI41...)      | kvs 0.5...2%                                                                |
|           | Allowable media            | Cooling water, chilled water, low temperature hot water and anti-freezing water |
|           |                       | Suggestion: the water shall be disposed and reach VDI 2035 Standard             |
|           |                       |                                                                            |
|           |                       |                                                                            |
|           | Media temperature          | -25...+140oC                                                           |
|           |                       |                                                                            |
|           | Rangeability Sv            | >50 (DN15), > 100 (DN≥20)                                           |
|           |                       |                                                                            |
|           | Allowable working pressure | 1600kPa (16 bar), ISO 7268 / EN 1333                                            |
|           |                       |                                                                            |
|           | Stroke                     | 20mm                                                                            |
| Material       | Valve body                 | Bronze CC491K (Rg5)                                                             |
|           | Valve spool                | Brass                                                                           |

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

|             | Valve handle               | Stainless steel                       |
|------------------|----------------------------|---------------------------------------|
|             | Seal ring                  | Brass                                 |
|             | Seal material              | EPDM-O ring                           |
| Dimension/weight | Dimension                  | See the Dimension (form)              |
|             | Internal thread connection | Rp...comply with ISO 7/1 Standard |
|             | Weight                     | See the Dimension (form)              |

|   | Sv    = | Rangeability kvs/kvr. Comply with VDI 2173 Standard                                                                                                                                                    |
|--------|------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | kVS =   | Rated flow. It is defined the cubic meters of the valve that 5...30oC water flows by per hour, when the valve is fully open and the differential pressure of valve is 100Kpa before and after |
|   | kVr =                  | Minimum flow rate that still maintains the regulation characteristics when the differential pressure is 100kPa (1 bar)                                                                                 |

| Dimension |
|-----------|

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

----

| Siemens Building Technologies |         | Internal thread connection, PN16        |         | CA1N4362cn  |
|-------------------------------|--------------|-----------------------------------------|--------------|-------------|
| HVAC Products                 |    | Only applicable in Asian-Pacific Region |    | 28.06. 2004 |

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