Rainfine Huge Farmland Center Povit Irrigation Part of Irrigation Valve

    Irrigation Valve             Website & App website:www.rainfine.cn App:     Product Description    [1] Fastening Bolts Only four bolts (up to 10"; DN250 valve) fasten valve cover to body, ensuring quick in-line inspection and service.
[2] Valve Cover Locates, centralizes and fastens diaphragm and spring ensuring smooth and accurate performance. Simple construction enables quick in-line inspection and service.
[3] Auxiliary Closing Spring One single spring fully meets valve requirements for operating pressure range, ensuring low opening pressure and secured closing.
[4] Diaphragm Assembly One piece elastomeric assembly that includes a peripherally supported flexible diaphragm, vulcanized with a rugged radial seal disk.
No need for special types of diaphragms to meet different operating conditions.
Progressive dynamic guidance, resulting in exceptionally stable action and restrained closing.
Valve opens and closes drip tight even with very low pressure supply.
Perfectly balanced diaphragm with no distortion caused by uneven hydraulic forces on shut-off or during regulation.
Exceptionally stable and chatter-free action during shut-off and pressure regulation.
[5] Body Threads No need for nuts, simplifying valve disassembling and assembling for maintenance.
[6] Wide Body Valve Hydro-dynamically designed for efficient flow with minimal pressure loss and excellent resistance to cavitation.
[6.1] Diaphragm Supporting & Guiding
[6.2] Diaphragm Balancing Chamber
[6.3] Valve Seat: Full bore, valve port area clear of obstructions; no ribs or stem guides. Flow entrance is vertical to seal disk.
[6.4] End Connections: Conforms to pressure ratings and standards of: ISO, ANSI, JIS, BS, and others. 3-Way Control Modes    Fully Open Position                                                                   
When upstream pressure drops, the pilot blocks the pressure port and opens the drain port, venting the control chamber to the atmosphere. This fully opens the valve, minimizing head loss.   Modulating Closed
The pilot switches upon pressure rise,blocking the drain port and opening the pressure port.
This pressurizes the control chamber,forcing the valve to modulate closed   Locked Position
When sensed pressure is equal to setting,the pilot shaft moves and blocks both the drain port and the pressure port.
This locks the pressure in the control chamber, freezing the valve in its last position until conditions change.     Zero Flow Position
When demand drops to zero,downstream pressure begins to rise as the flow enters a closed line. The pilot
switches and pressurizes the control chamber initiating a valve's irreversible closing process, eventually causing it to seal drip tight.                                                                    NOTICE 1. If you want pivot, please give us the following details"     - your country and name     - land area (in ha or m2 )     - crop and water application (mm/day or m3 /h or LPS)     - working degree (0- 360O  )    - if you need any extras (options) for pivot such as Diesel generator, end gun with booster pump, corner control system for end gun, Fertilizer unit 2. Small parts are not sold seperately, except for large amount.     Company Information GLOBAL MANUFACTURER OF IRRIGATION EQUIPMENT SINCE 2002 Rainfine is an international irrigation company based in Dalian, China that specializes in center pivot and lateral move systems.  We are a leading manufacturer across the globe, supplying irrigation parts and equipment to major manufacturers in the United States, France, Russia, Australia, Sudan, Kazakhstan, Nigeria and Saudi Arabia. Our irrigation manufacturing meets the following standards:
International: ISO15873 ISO12374 ISOTR15155
French: NFEN909
British: BSEN12325-2
American for galvanizing: A123
ISO9001-2008 QC standard     Rainfine's work -land surveying and planning -Pipeline network calculation
-Pump station calculation and design
-Business proposals and budget plans
-Pumps, valves and irrigation machines supply
-Installation and commissioning     Warranty -1 year concerning electric equipment
-10 years/10 000 working hours for gearboxes and gear motors whichever expires earlier
-20 years concerning the galvanized equipment against corrosion
-3 years for tires and rims