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Mech Valve differential pressure adjustment valve surge water pipe

Mech Valve differential pressure adjustment valve surge water pipe

Mech Valve differential pressure adjustment valve surge water pipe
  • Mech Valve differential pressure adjustment valve surge water pipe
  • Mech Valve differential pressure adjustment valve surge water pipe
  • Mech Valve differential pressure adjustment valve surge water pipe
  • Mech Valve differential pressure adjustment valve surge water pipe

Mech Valve differential pressure adjustment valve surge water pipe

Connection Ends
Flange to BS EN 1092-2:1997
Temperature Range
0℃- 80℃
Coating
Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550
Working Pressure
PN10/PN16
Price
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Enterprise Strength
  • Mike Valve has built a perfect after-sales service system to ensure fast and timely service.
Product Comparison
Good materials, advanced production technology, and fine manufacturing techniques are used in the production of valve manufacturer. It is of fine workmanship and good quality and is well sold in the domestic market.Mike Valve guarantees Industrial Valves to be high-quality by carrying out highly standardized production. Compared with other products in the same category, it has the following advantages.
Company Advantages
1. Shenzhen Mech Valve Trading Co., Ltd. recently developed pressure control valve , using pressure adjustment valve structure.
2. pressure control valve are widely used for pressure adjustment valve .
3. With such features as pressure adjustment valve , pressure control valve has wide development foregrounds.
4. The product produces no side effects. People don't need to worry about their skin will become dry or oily after using it.
5. This wonderful and exquisite item will definitely brighten to everyone's eye. Most customers say the product is sold out quickly and they have to repurchase more.
Statement


SK780X Pressure Differential By-pass Balancing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in HVAC system for guarantee of flow stability in the air conditioning, refrigeration and heating system and pump working. The valve prevents the effect on the other pipe branches when there is fluctuation on one branch by balancing of pressure in the radiant and distribution water manifold, thus to protect the efficient and safe working of the refrigeration set or heating set.

Features

Operational principle

SK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve, needle valve (or ball valve), mini strainer and ball valve, etc.

SK780X Pressure Differential By-pass Balancing Valve is installed between radiant and distribution water manifold (water supply and water return). Water flow enters continuously from water supply duct to the valve inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). Pilot valve (3) is connected to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and adjustment of the opening position of the pilot valve accordingly. When the pressure difference is large, pilot valve opens broadly, the pressure inside upper cavity room (2) declines and the basic valve opens broadly. As result the water flow between the supply and return duct increase and the entire system gets balanced. When the pressure difference is small, pilot valve (3) turns to close at the pressure of the spring, the pressure inside upper cavity room (2) increase and the basic valve turns to close. As result the water flow between the supply and return duct decreases and the entire system also gets balanced.


Property and advantages

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection.

• Controlled by the pilot valve, lower energy consumption, achieve accurate pressure reducing results, have function of stabilizing pressure after the valve.

• Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected.

• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise.

• Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation.

• Long pitch orientation design for stem move, stable and no gap resistance.

• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

• Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust- resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS, NSF61.



SK780X


Notes for installation and debugging

• The valve has been finished initial debugging tests before delivery. Further debugging test is also suggested during using according to different set-conditions.

• Over review pressure meter of water knockout drum and water collector, adjust pilot valve (3) according to set-difference of pressure. Clockwise is for increasing the pressure difference and anti-clockwise is for reducing pressure difference when set adjusting screw on the top of pilot valve. When adjusting is done, fasten the lock nut. Then you'll got set-difference for the pressure no matter how the pressure of pipe system changes.

• Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Normally, it has been adjusted well before delivery. No further adjusting suggested if no special notice.



Typical installation illustration




Common problems and proposed solutions



Common Problems

Proposed Solutions

 

Pressure difference is smaller than set-value and does not reach the set-difference.

a.Check if any sundries on the sealing surface of basic valve or pilot valve.

b.Check if any damage on the sealing surface of basic valve or pilot valve.
c.Check if needle valve (ball valve) (1) was closed or almost closed. If yes, please open it.

Pressure difference is bigger than set-value and does not reach the set-difference.

a.Check if ball valve (6) at outlet was closed. If yes, please open it.

b.Check if there's any block for pilot valve.


Company Features
1. Shenzhen Mech Valve Trading Co., Ltd. has developed and grown to be a globally advanced pressure control valve manufacturer.
2. With our strong technical support, Shenzhen Mech Valve Trading Co., Ltd. is ready to build a solid foundation in the future.
3. We strive to prevent and reduce environmental pollution by using appropriate technologies in our products and their design and manufacturing process. In every production process of pressure adjustment valve , we always maintain a professional attitude. Ask! Our team at Mech Valve provides the best support and products to our customers. Ask! Shenzhen Mech Valve Trading Co., Ltd. is committed to 'ensuring that every customer in the world has high-quality hydraulic pressure control valve '.
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