25mm Solenoid Valve Pro Series 150 - VK7101

25mm Solenoid Valve Pro Series 150 – VK7101

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K-Rain’s ProSeries 150 Valves offer the irrigation professional a wide array of features and benefits.
The K-Rain range of solenoid valves are made from high quality UV resistant PVC construction and suitable for residential, agricultural and commercial applications. Working pressure 0.7bar (70kpa) to 10bar (1000kpa). High quality coil design 24VAC.

  • The 1″ valve has a removable metering pin and external bleed screw, promoting easy maintenance and manual operation.
  • The Jar-Top provides easy servicing access without removing the valve from the system.
  • The 1.5” and 2” models feature a removable inlet cap to easily modify the configuration from globe to angle style. They also have a removable metering pin and external bleed screw promoting easy maintenance and manual operation.
  • ProSeries_150_Electric_Irrigation_Valves
71011

Product Code: VK7101
Brand: KRain

Features:

  • Threaded jar top allows for easy servicing after installation
  • Jar top is fully inter-changeable with Toro / Richdel style
  • Manual internal bleed through solenoid
  • External bleed screw with removable metering pin
  • 5 years warranty
  • 40mm & 50mm valves come with flow control
  • 40mm & 50mm valves can operate as globe or angle style
  • Pressure range for 25mm valves 70-1000kpa
  • Pressure range for 40mm – 50mm valves 140 – 1000kpa
  • Flow range for 25mm valves 1 – 113 Lpm
  • Flow range for 40mm – 50mm valves 20 – 450 Lpm

Specifications

7101_1_inch_Irrigation_Valve_Screw_Top_Page_Pressure_Loss
7101_1_inch_Valve_1.5_and_2_inch_Operating_Specs_Page_2

7101_1_inch_Valve_Jar_Top_Pressure_Loss
Product Name
7101 1″ FEMALE THREAD, NPT VALVE
7101-BSP 1″ FEMALE THREAD, BSP VALVE
7101-J 1″ FEMALE THREAD, NPT JAR TOP VALVE
7101-J-BSP 1″ FEMALE THREAD, BSP JAR TOP VALVE
7101-J-SL 1″ FEMALE SLIP, JAR TOP VALVE
7102 2″ FEMALE THREAD, NPT VALVE
7102-BSP 2″ FEMALE THREAD, BSP VALVE
7115 1 1/2″ FEMALE THREAD, NPT VALVE
7115-BSP 1 1/2″ FEMALE THREAD, BSP VALVE
“SOLENOID VALVE FAULT FINDING GUIDE”
This guide can be very useful in determining whether a valve has a manufacturing default or simply not working due to incorrect or poor installation. Most valve problems are attributed to dirt getting into the valve during installation.
Below is a list of possible causes for a solenoid valve not to operate:

• Has the valve been installed the right way?
A solenoid valve must be installed the correct way. If installed the wrong way around it will not operate properly.
An arrow indicating the flow direction is clearly marked on the valves body.

• Is the manual switch in the “off” Position?
Near the coil is a small lever which can manually operate the valve if normal 24v power is not available. In “normal” situations where there is power, this switch should remain in the closed position (ie. horizontal). If the manual switch is in the vertical position, the valve will always remain open thus allowing water through the valve if other solenoids are activated.

• Is there an “0” ring under the coil?
Unscrew the coil and ensure that there is an “o” ring seal. Be careful that the plunger doesn’t fall out of the coil when you unscrew it.

• Is there a plunger?
If there is no plunger or it is jammed up the coil, the valve will remain open. Ensure there is a plunger. The plunger should have a spring like movement when pressed with your finger. If not, the plunger is stuck. It can easily be fixed by removing and giving it a good clean with some water until it gets a bit of freeing up and retains the spring like action again. NEVER use a lubricant spray as this will only attract dirt and cause further problems.

• Has the flow shaft been set correctly?
Some solenoid valves have flow control which is basically used to control the flow or volume of water through the valve. If the flow control is screwed down, it is restricting the opening of the diaphragm and therefore limiting the flow of water through the valve. Therefore, ensure that this (if available) is open or set correctly when required.

• Are the internals of the solenoid valve clean?
Sometimes dirt or grit can enter the valve and cause a blockage. It is therefore necessary to clean the valve and ensure that the “port holes” are clear of any foreign material. It is also important to make sure that the internals of the valve are replaced the same way as they were before dismantling.

Other additional information: –
In most cases manufacturing defaults are rare. Generally if a valve can work manually, its internals are o.k. Check that the coil is not burnt out. You can do this by trying out that valve with the coil from a valve that is working.
Alternatively you can remove the coil, and by holding any wire from the coil at the controllers ‘active’ station terminal and placing the other wire from the coil at the ‘common’ terminal, the plunger should pull in when that station number is switched on (the plunger acts like a magnet when the coil receives a current from the controller).
When doing this, it doesn’t matter which wire from the coil is “common” and which one is “active”.
Other possible faults that may cause a valve not to operate (from the controller) include cut or damaged wires, poor wire connections, a blown transformer or a blown fuse (which is generally blown due to a poor wire connection).
Most controller instruction manuals have a “fault finding” guide to further detail possible controller faults.
Contact your supplier should further assistance be required.

Product Name
7101-DIAPHRAGM – REPLACEMENT DIAPHRAGM ASSEMBLY FOR 7101 PRO 150 SERIES VALVE
7101-J-DIAPHRAGM – REPLACEMENT DIAPHRAGM ASSEMBLY FOR 7101-J JAR TOP PRO 150 SERIES VALVE
7102-DIAPHRAGM – REPLACEMENT DIAPHRAGM ASSEMBLY FOR 7102 2″ PRO 150 SERIES VALVE
7115-DIAPHRAGM – REPLACEMENT DIAPHRAGM ASSEMBLY FOR 7115 1 1/2″ PRO 150 SERIES VALVE