VB21 Vacuum Breaker Stainless Steel
Spirax Sarco vacuum breakers are used in vacuum removal in steam systems, which can effectively protect the equipment from being in a vacuum state when steam is condensing.
The Spirax Sarco VB21 vacuum breaker must be installed in a vertical position with the system connection located at the bottom of the vacuum valve. For steam systems, the vent valve must be installed at the highest point of the system to prevent the valve from being submerged by condensate.
The Spirax Sarco vacuum breaker can break the vacuum caused by condensation. Under normal working conditions, the stainless steel ball of the vacuum breaker sits on the valve seat. After the vacuum appears, the small steel ball leaves the valve seat and the outside air enters the system.
Sometimes the vacuum breaker may add a load spring, which means that the vacuum can only be broken after the internal pressure has fallen to a certain level, which can ensure that it is closed tightly when the vacuum is approached.
The most common application of the Spirax Sarco VB14 vacuum breaker is in process equipment such as jacketed cookers and heat exchangers. After these equipments are closed, they still contain a certain amount of steam. After the steam condenses, a vacuum is formed. The vacuum will damage the equipment, so it is necessary to install a vacuum breaker at the steam inlet of these equipments. The same can happen in steam mains and boilers.
Vacuum breakers are also commonly used on heat exchangers with temperature control to prevent the heat exchanger from losing flow. A vacuum breaker is installed at the steam inlet of the small heat exchanger where the condensed water is discharged to the atmosphere to prevent the loss of flow. When a vacuum is generated in the steam space, the vacuum breaker opens and the condensed water is discharged through the trap.
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Brief introduction of Spirax Sarco VB21 vacuum breaker
VB14 and VB21 vacuum breaker
VB14 is a small general purpose vacuum breaking valve, mainly used for condensing steam (steam) and liquid systems.
VB21 is a small general purpose vacuum breaking valve, mainly used for condensing steam (steam) and liquid systems.
Spirax Sarco VB21 Vacuum Breaker Installation
The Spirax Sarco VB21 vacuum breaker must be installed in a vertical position with the system connection located at the bottom of the vacuum valve. For steam systems, the vent valve must be installed at the highest point of the system to prevent the valve from being submerged by condensate.
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Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)
QQ: 2030185432
Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.
Contact: Peng gong
Q Q: 2030185432
Mobile: 18918462396(WeChat same number - 24 hours service)
Landline: 021-59718851
E-mail :kunage@126.com
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