G1/2 'фильтр для воды с датчиком давления
1 410,71 ₽ - 1 487,86 ₽
TMOK отводной регулятор давления рельсовый клапан медь латунь
- Категория: >>>
- Поставщик: Yuhuan Oujia Valve Co. Ltd.
Сохранить в закладки 60761591753:
Описание и отзывы
Характеристики
Why Choose Us
Product Paramenters
Certificates: | ISO9001/CNAS/TUV/SGS/CE/ACS/WRAS |
Brass Material | Brass(CuZn39Pb3, CZ121, C37710, CW614N, CW617N, DZR, etc) |
Surface | Natural brass/Nickel plated /Chroming |
Ball Material | Chrome Plated Brass/Iron can be customized if needed |
Handle Material | Steel |
Body Seal Material | PTFE |
Connection Type | |
Sample Time | 1-3 days for Packing and 10 days for delivery by Fedex/DHL/UPS/TNT |
Packing | opp bag inner, inner box, out carton and pallet. |
Test Pressure | 12 bar/174 psi |
Working Temperature | -20℃ to +120℃/4℉ to 248 ℉ |
Details Images
Functions of Pressure Reducing Valves
A pressure-reducing valve is able to control pressure through the fully automatic self-contained operation without the necessity
of an external power source. The main functions of a pressure-reducing valve are:
* In steam systems, pressure-reducing valves are used to get precise control of downstream pressure. These valves automatically
adjust the valve opening and adjust the pressure to keep it constant during pressure fluctuations.
* Properly selected pressure-reducing valves can be used for water hammer protection under defined conditions.
* They can also be used as bypass valves for saving the system during power failures.
* Pressure-reducing valves are capable of taking rapid action by immediate sensing and adjusting based on the downstream
pressure.
of an external power source. The main functions of a pressure-reducing valve are:
* In steam systems, pressure-reducing valves are used to get precise control of downstream pressure. These valves automatically
adjust the valve opening and adjust the pressure to keep it constant during pressure fluctuations.
* Properly selected pressure-reducing valves can be used for water hammer protection under defined conditions.
* They can also be used as bypass valves for saving the system during power failures.
* Pressure-reducing valves are capable of taking rapid action by immediate sensing and adjusting based on the downstream
pressure.
Types of Pressure Reducing Valves
A pressure-reducing valve in a steam system works by balancing the steam pressure with a spring. Most of the modern
pressure-reducing valves are manufactured using this basic concept. Based on the mechanism of controlling the valve opening,
pressure-reducing valves are classified into two types:
* Direct acting pressure reducing valve and
* Pilot-operated pressure-reducing valve.
pressure-reducing valves are manufactured using this basic concept. Based on the mechanism of controlling the valve opening,
pressure-reducing valves are classified into two types:
* Direct acting pressure reducing valve and
* Pilot-operated pressure-reducing valve.
Direct-acting pressure-reducing valve:
Direct-acting pressure-reducing valves are ideal for small loads where precise pressure control is not required. They are
manufactured in a compact size, cheap, and very easy to install. However, they usually have more variation from the set pressure as compared to their pilot-operated counterpart.
Direct-acting pressure-reducing valves are ideal for small loads where precise pressure control is not required. They are
manufactured in a compact size, cheap, and very easy to install. However, they usually have more variation from the set pressure as compared to their pilot-operated counterpart.
Direct-acting pressure-reducing valves are designed for point-of-use installation. This is the simplest type of pressure-reducing valve that operates with either a flat diaphragm or convoluted bellows. It does not need an external sensing line downstream to operate as it is self-contained. The accuracy of direct-acting PRVs is typically (+/-) 10% of the downstream set point.In direct-acting pressure-reducing valves, the movement of the adjustment spring aids in the valve opening directly. The spring compression creates an opening force on the pressure-reducing valve which increases the flow. As pressure builds downstream,equalizing occurs by feeding the downstream pressure to the underside of the adjustment spring where its upward force counter-balances against the spring compression. The spring compressive force is limited to allow sufficient spring sensitivity to equalize with downstream pressure changes. This causes a simple pressure control through a valve orifice. However, high flow rates can cause pressure variation.
Pilot Operated pressure reducing valve:
Pilot-operated pressure-reducing valves are normally used for larger loads requiring close pressure control. They provide a faster response to load variation and are suitable for a wider range of flow rates as compared to the direct-acting types. They are larger in size and costly.
A pilot-operated pressure-reducing valve uses a pilot valve to load a piston or diaphragm that increases the downward force used to open a larger main valve. This helps in larger flow capacity with a lower pressure variation. By balancing the force between the adjustment spring and the secondary pressure, the opening and closing of the pilot valve are controlled. This pilot valve purposely delivers pressure to the main valve piston or diaphragm. The downward force created by this pilot flow pressure is amplified by the area of the piston or diaphragm that enables the opening of a much larger main valve providing the ability for very high flow rates.
Pilot-operated pressure-reducing valves are normally used for larger loads requiring close pressure control. They provide a faster response to load variation and are suitable for a wider range of flow rates as compared to the direct-acting types. They are larger in size and costly.
A pilot-operated pressure-reducing valve uses a pilot valve to load a piston or diaphragm that increases the downward force used to open a larger main valve. This helps in larger flow capacity with a lower pressure variation. By balancing the force between the adjustment spring and the secondary pressure, the opening and closing of the pilot valve are controlled. This pilot valve purposely delivers pressure to the main valve piston or diaphragm. The downward force created by this pilot flow pressure is amplified by the area of the piston or diaphragm that enables the opening of a much larger main valve providing the ability for very high flow rates.
Due to this amplification, a small change in the opening on the pilot valve results in a large change in flow and downstream pressure through the main valve. Therefore, a little change in adjustment spring force on the pilot accomplishes a quick response over a wide range of steam flow rates. The main advantage of a pilot-operated pressure-reducing valve is the quick response and tight downstream pressure control.
Applications of Pressure-Reducing Valves
Self-acting pressure-reducing valves are used in the following services:
Air or gas services: Both direct-acting and pilot-operated pressure-reducing valves for air and gas services are used in
compressed air systems, power tools, pneumatic control systems, and control valves for industrial gas storage and distribution systems. The selection of the type of pressure-reducing valve for these services is based on the accuracy of control required.
Water services: Pressure-reducing valves find wide application in domestic and industrial water distribution services and fire protection systems. In general, direct-acting pressure-reducing valves are preferred for these services. During high-demand scenarios, maintaining system pressures becomes very difficult. Pressure-reducing valves are used in those lines which can effectively control the pressure downstream to an acceptable limit.
Steam services: The majority of the pressure-reducing valves are used in steam applications involving direct steam supply, steam engines, and turbines.
Other Services: Pressure-reducing valves find their applications in the following:
* Bearing lubrication systems in heavy industrial equipment and rolling mills.
* In hydraulic presses to control ram pressure.
* To control the pressure in fuel-oil systems.
* To reduce pressure in sterilizers, humidifiers, unit heaters, and small process equipment
Air or gas services: Both direct-acting and pilot-operated pressure-reducing valves for air and gas services are used in
compressed air systems, power tools, pneumatic control systems, and control valves for industrial gas storage and distribution systems. The selection of the type of pressure-reducing valve for these services is based on the accuracy of control required.
Water services: Pressure-reducing valves find wide application in domestic and industrial water distribution services and fire protection systems. In general, direct-acting pressure-reducing valves are preferred for these services. During high-demand scenarios, maintaining system pressures becomes very difficult. Pressure-reducing valves are used in those lines which can effectively control the pressure downstream to an acceptable limit.
Steam services: The majority of the pressure-reducing valves are used in steam applications involving direct steam supply, steam engines, and turbines.
Other Services: Pressure-reducing valves find their applications in the following:
* Bearing lubrication systems in heavy industrial equipment and rolling mills.
* In hydraulic presses to control ram pressure.
* To control the pressure in fuel-oil systems.
* To reduce pressure in sterilizers, humidifiers, unit heaters, and small process equipment
Advantages of Pressure Reducing Valves
* No requirement for an external power source.
* Separate measuring elements or feedback controllers are not required.
* Simple design with low cost.
* High reliability and easy maintainability
* External leakage and source of high friction are eliminated by the absence of stem packing.
* Fast response
* Separate measuring elements or feedback controllers are not required.
* Simple design with low cost.
* High reliability and easy maintainability
* External leakage and source of high friction are eliminated by the absence of stem packing.
* Fast response
Pressure Reducing Valve vs Pressure Relief Valve
1.0 Pressure-reducing valves maintain almost constant pressure at the downstream side of the valve. So, this valve is used only to maintain or reduce the higher pressure. Whereas pressure relief valves are used to protect equipment and systems from high pressure when the system or equipment pressure exceeds the set limit. 2.0 Pressure-reducing valves operate continuously in the line whereas pressure-relief valves pop up only when the set pressure limit is exceeded.3.0 In a pressure-reducing valve the pilot line senses the outlet pressure whereas in a pressure-relief valve the pilot line senses the inlet pressure.4.0 In normal working conditions, the pressure-reducing valve will be in the open position but the pressure-relief valve remains in a closed position.
Company Profile
Zhejiang TMOK Plumbing Co., Ltd. is a company integrating industry and trade located in Hangzhou, aiming to provide customers with one-stop solutions for water treatment.Our products are used in a wide range of applications, including plumbing, construction projects, medical equipment, etc.
Our associated factory was established in 1989，with ISO9001:2015 certificate and rich OEM/ODM experience. The factory is located in Yuhuan, Taizhou City, enjoying convenient transportation, close to Ningbo and Shanghai Port.It has strong advantages in developing garden bibcocks and valves and making samples according to customers' drawings. With more than 10 years of production experience, we have accumulated hundreds of molds, which can easily meet the customization needs of popular products in the market.The efficient ordering system allows us to deliver goods within 24 hours after customers place orders.The factory covers an area of 6000 square meters and has 100+ employees, including 10+ technicians. We have invested heavily in introducing advanced CNC machines,purchase raw materials in strict accordance with international standards, and have professional personnel inspect products before leaving the factory .
Our associated factory was established in 1989，with ISO9001:2015 certificate and rich OEM/ODM experience. The factory is located in Yuhuan, Taizhou City, enjoying convenient transportation, close to Ningbo and Shanghai Port.It has strong advantages in developing garden bibcocks and valves and making samples according to customers' drawings. With more than 10 years of production experience, we have accumulated hundreds of molds, which can easily meet the customization needs of popular products in the market.The efficient ordering system allows us to deliver goods within 24 hours after customers place orders.The factory covers an area of 6000 square meters and has 100+ employees, including 10+ technicians. We have invested heavily in introducing advanced CNC machines,purchase raw materials in strict accordance with international standards, and have professional personnel inspect products before leaving the factory .
The company's main products are brass garden Bibcock, ball valve, check valve, gate valve and etc.It has a group of high-quality professionals and marketing service personnel,and develops a sales network nationwide. On the other hand, our products are also exported to Europe, America, Southeast Asia and the Middle East. We sincerely welcome customers home and abroad to come to our company to negotiate business and cooperate with us.
Production Process
Customer Reviews
Exhibition
FAQ
Q1.What is your MOQ?
For Stock items, no MOQ;
For OEM items, pls contact for further discuss.
Q2.Can I get samples?
Sure.We usually provide exiting sample for free. We usually send samples by FEDEX, UPS, TNT or DHL. If you have carrier account, it will be fine to ship with your account, if not, you can pay the freight charge to us, we will ship with our account. It takes about 5-7days to reach.
Q3: Can I customize my logo or redesign the products?
Yes, of course. The OEM is available. We also have our own R&D team. We will do the creation in your drawings and promise to give you an impression.
Q4.How long is the sample lead time?
We could arrange the existing samples express delivery immediately. It will only takes 5-7 days into your hand.
For any special samples requirement, we will contact you first, just wanna make everything in your expectation.
Q5.How to making an order?
a. Give us your idea;
b. Send the sample to you;
c. Confirm the sample plus design+ artworks+Shipping mark/way+payment way etc;
d. Confirm the order and sign;
e. Prepay the deposit;
f. Arrange Production;
g. Inspection;
h. Shipping goods;
i. Send shipping documents and BL copy;
j. Arrange balance payment;
k. Send original/telex BL;
l. Pick up goods;
m. Keep contact for any questions.
For Stock items, no MOQ;
For OEM items, pls contact for further discuss.
Q2.Can I get samples?
Sure.We usually provide exiting sample for free. We usually send samples by FEDEX, UPS, TNT or DHL. If you have carrier account, it will be fine to ship with your account, if not, you can pay the freight charge to us, we will ship with our account. It takes about 5-7days to reach.
Q3: Can I customize my logo or redesign the products?
Yes, of course. The OEM is available. We also have our own R&D team. We will do the creation in your drawings and promise to give you an impression.
Q4.How long is the sample lead time?
We could arrange the existing samples express delivery immediately. It will only takes 5-7 days into your hand.
For any special samples requirement, we will contact you first, just wanna make everything in your expectation.
Q5.How to making an order?
a. Give us your idea;
b. Send the sample to you;
c. Confirm the sample plus design+ artworks+Shipping mark/way+payment way etc;
d. Confirm the order and sign;
e. Prepay the deposit;
f. Arrange Production;
g. Inspection;
h. Shipping goods;
i. Send shipping documents and BL copy;
j. Arrange balance payment;
k. Send original/telex BL;
l. Pick up goods;
m. Keep contact for any questions.
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