Pressure Control Valve Pressure Reducing Valve Adjusting Range Is 80-800mbar 8-80kpa Pvg1.25 Good Quality Made in China

• Media: Gas
• Certification: CCC, RoHS, ISO, CE
• Temperature: High Temperature
• Connection: Thread
• Valve Seat: Single-Seat
• Structure: Spring Diaphragm
• Model NO.: PVG1.25
• Material: Steel
• Pressure Range: 8-80kpa
• Weight: 1.2kgs
• Inlet/Outlet Size: G1.2′′
• Transport Package: Carton
• Specification: 160*58mm
• Trademark: Dereike
• Origin: China
• HS Code: 8414100090
• Production Capacity: 1000set/Day

Product Description

DEREIKE pressure control valve Adjusting Range is 80-800mbar(8-80kpa) PVG1.25

PVG1.2 Pressure Relief valve
Model	Adjusting Range	Temperature	Application Type	Debugging Mode	Caliber
PVG1.2	80-800mbar	-20-150ºC	Vacuum/ Compress	Screw Plunger	1 1/4''

 

1. Component

The PVG1.2 Pressure Relief valve is constituted by steel casing, bottom sealing sheet, spring, crown sheet, adjusting screw plunger etc.

Through locking or loosening the pressure adjusting screw plunger to make the crown sheet compress or release spring, then the spring out of shape to some extent. When the pressure is greater than the spring`s deformation force, the Sealing sheet will be opened, to release the excessive volume to maintain the pressure in the adjusting range, then protect the blower.

 

Operation principle and construction features

The relief valve is installed on inlet pipe (used for vacuum) or outlet pipe (used for pressure) of side channel blower.

1. When the working pressure or pressure surge inside the blowers overload than the rated pressure of blower, the relief valve will be opened within 0.2 minutes, the overload pressure will be released from relief valve in order to protect the blower.
When the working pressure reduces to safe value, the valve will be closed slowly, this will not cause the pressure surge again.
 

1. The materials and specification of relief valve PVG 1.2 :

--- Both inside and outside are steel
--- Can be used both pressure and vacuum
--- Adjusting Range is 80-800mbar(8-80kpa)

Setting Process

TO Confirm the Setting Pressure data of Relief Valve

Firstly, confirm the rated pressure data when purchasing blowers, the adjusting pressure of relief valve should be 2~4kpa smaller than the blower`s rated pressure is preferred.


TO Confirm the Installation direction of Relief Valve

Firstly, according to the actual situation to confirm the high pressure blower is positive pressure (blow), or negative pressure (suction), when using positive (blow), the relief valve`s arrow up; when using negative pressure (suction), the relief valve`s arrow down.
 

Operation and maintenance

Only when the working pressure inside the blowers overload than the rated pressure , the relief valve will be open to release the excessive flow (Can feeling by hand). Don't think the pressure valve doesn't work when there is no flow come outComparing the running current with rated current to determine the quality of the release valve.

When running current is higher than rated current, the pressure relief valve should work and release flow.        

When the pressure relief valve works, but the operating current or the working pressure is still higher than the rated current or rated pressure, we should install one more pressure relief valve.
 

Note: Please use G1.2" T connector and Inner connector to connect PVG1.2 pressure relief valve to the pipe.

Installation and Adjustment
 

1. When blower using positive pressure at outlet pipe:

---    The direction of arrow on the relief valve shows the flow of air, when using positive pressure installation, arrow up.

--- Since the Adjusting Range of PVG 1.25 is 80-800mbar(8-80kpa), you will need to install

2pcs or more when using high power, high flow, double stage high pressure blower;

---The inner screw plunger is used for adjusting the pressure of relief valve, locking screw plunger clockwise means turn up the pressure, loosening screw plunger means turn down the pressure. See below Figure 1.

 

Adjusting Method:

1. Using socket wrench to fasten the hexagonal socket on the top of the screw plunger. Then turn clockwise or anti-clockwise to adjust the pressure.

 

1. Using Hexagonal key wrench fasten the sleeve on the screw plunger, Then turn clockwise or anti-clockwise to adjust the pressure.

 

1. When blower using negative pressure (Vacuum) at inlet pipe

--- The direction of arrow on the relief valve shows the flow of air, when using negative pressure installation, arrow down.

--- Relief valve through releasing volume to reduce pressure, Since the Adjusting Range of
PVG 1.2is 80-800mbar(8-80kpa), you will need to install 2 Pressure relief valves when using high power, high flow, double stage high pressure blower.
Normally 12.5kw above models will required 2sets of PVG1.25.

---  The inner screw plunger is used for adjusting the pressure of relief valve, locking screw plunger clockwise means turn up the vacuum, loosening screw plunger means turn down the vacuum (See below Figure 2)

Q1	How long is the blower life?
A1	3-5 years in normal condition.
Q2	How long is the warranty period for the blower?
A2	18months free warranty period, and a lifetime maintenance.
Q3	Can the blower be customized?
A3	Normal Blowers are standard parts, but the voltage can be customized. And blower can be special treatment according to customer special requirement. Also the IE2/IE3 standard blower is available.
Q4	How do you control the product's quality?
A4	All the products have quality testing and dynamic balance before delivery by Our professional QC.
Q5	How long of the loading time?
A5	5-7 days after order confirmed and receiving of deposit.
Q6	What's the of the blower usage applications?
A6	Side channel blowers have been widely used in the environmental water treatment. For example, in the aeration of sewage, ring blowers can provide oxy that the aerobe need in the activated sludge. Also, blowers can provide the conditions which make the sewage and activated sludge mixed sufficiently to dissolve all kinds of organic matters in the water. Then, the sewage water can be purified. Besides the above, ring blowers can also be used to mix the plating bath fluid and can be used in the aquaculture industry as well in the printer industry. Also, the blower can be used for other more than 30 different applications: Such as the adsorption Dryer, Welding Fume Extraction, Pneumatic Conveying, Biogas Conveying, Sewage Treatment,Aquaculture, Printing Equipment, Slaughtering Equipment, CNC Engraving Machine, hotel SPA pool and Swimming Pool, Electroplating equipment, Central Feeding, Textile industrial, Hospital equipment, Laboratory Testing, Food Package, Air Purification, dust collector, dental suction machine, Airport ground air-conditioning equipment, Oil and Natural gas industrial, etc;