Irrigation

RAIN LING EVA/EVD Solenoid Valves

RAIN LING makes EVA (AC) and EVD (DC) irrigation solenoid valves in sizes from one inch up to four inches. The AC coil runs on 24 V AC at 50/60 Hz; the DC coil on DC12 V with a 9–15 V range and a pulse condition. Published working limits are 0.5–8 bar and up to 60°C, and the two-inch panel gives 5–100 m³/h. Bodies are glass-filled nylon with EPDM diaphragms and a manual flow knob. Two RAIN LING sources give different AC coil currents, so pin the coil revision, controller load and the size-specific pressure loss before ordering.

Lingxing Irrigation Technology (Ningbo) — RAIN LING ↗

Prepared by CropEquip Editorial · Sources checked 2026-10-12

Build my procurement brief

Choosing the coil

RAIN LING spreads its coil data over AC and DC product pages, one-inch graphics and a two-inch title. Order the body, coil and controller output as one matched set and ask RAIN LING to name all three on the quotation.

Where RAIN LING lists it	What it gives and what to ask
AC page: 24 V±10%, 50/60 Hz	0.28 A opening and 0.15 A holding.
EVA100 graphic: 24 V±10%, 50/60 Hz	0.30 A opening and 0.18 A holding. Ask which coil and revision your offer uses, and size your controller on the higher figures until you know.
DC page: 12 V, 9–15 V range	The general DC offer. Ask for the pulse, polarity and current your controller output must match.
EVD100 graphic: DC12 V±10% (9–15 V)	Adds a pulse width under 100MS. Ask RAIN LING to state the exact voltage window and the pulse your controller should send.
EVD20024 option	Named in the Chinese title. Ask for its electrical specification and what the suffix means.

Sources [1] [2] [3] [4] [5]

Inrush current and controller output

On the EVA100 graphic a coil draws 0.30 A to open and 0.18 A to stay open. When you size a controller, count how many coils start together and how many stay open, plus any master valve. A station count alone tells you nothing about load.

RAIN LING's RL-CA08 controller lists a 24 V AC, 1 A output, without saying whether that is per station or in total. Four coils starting together at 0.30 A would add up to 1.20 A. Ask RAIN LING how many EVA valves the controller may open at once, and test that combination. The same question applies if you pair the valves with the RL-CA13 / RL-CA16 modular controllers or the RL-CJ100 decoder controller.

For DC valves, the pulse condition on the EVD100 graphic governs, so match it to the controller's DC output. Get the wiring and polarity instruction in writing; lead colours in the photos are for identification only.

Sources [1] [3] [4] [8]

Flow range and sizing a zone valve

The Chinese panel on the two-inch entry gives 0.5–8 bar, 5–100 m³/h and water up to 60°C. The one-inch EVA100 and EVD100 graphics also show 0.5–8 bar and ≤60°C. These are family figures, and 100 m³/h is the top of the range across all sizes.

To size a zone valve, you need the zone flow, the pressure upstream, the pressure your emitters need downstream, and the valve's pressure loss at that flow. Pipe diameter and friction loss upstream change that inlet pressure, and our notes on specifying irrigation hose and pipe cover both. Ask RAIN LING for the loss curve of the size you choose, and for a drawing showing end threads, pilot and overall length.

The manual knob adjusts flow. If you need a steady downstream pressure, ask whether RAIN LING offers a pressure-regulating version, and what the external pressure-sensor option connects to.

Sources [1] [2] [3] [4] [5] [6] [7]

Published specifications

Read each value with its stated conditions, and ask the manufacturer for any limit not listed here.

Specification	Published value	Meaning / limit
Sizes and codes	EVA/EVD catalogue choices; labelled EVA100/EVD100 one-inch graphics and EVA200/EVD200/EVD20024 two-inch title [3] [4] [5]	The catalogue also lists 1.2, 1.5, 2.5, 3 and 4-inch titles. Ask for the full code and drawing, and what the 24 suffix on EVD20024 means.
AC coil	24 V AC±10%, 50/60 Hz; 0.28/0.15 A on the webpage, 0.30/0.18 A on the EVA100 graphic [1] [3]	Opening and holding current. The two sources differ, so ask which figures apply to the coil you receive.
DC coil	DC12 V; 9–15 V range; EVD100 graphic also states ±10% and pulse width <100MS [2] [4]	Ask for the pulse shape, polarity, current and voltage range your controller must deliver.
Working range	0.5–8 bar; ≤60°C; Chinese information panel 5–100 m³/h [3] [4] [6]	Family-wide limits. Ask for the flow and pressure-loss figures of the size you choose.
Materials and controls	Glass-filled nylon body; EPDM diaphragm and seals; manual flow control [1] [2] [3] [4]	Ask for the material grade and its compatibility with your water and any treatment chemicals.

Diaphragm, pilot filter and service access

RAIN LING describes a glass-filled nylon body, an EPDM diaphragm and a washable filter on the pilot water line. Ask for the service procedure and the filtration your field water needs.

Feature RAIN LING describes	What to ask for
Diaphragm and seals	The material grade and a chemical-compatibility table for your water and treatment products.
Washable pilot filter	Its mesh size, and the main-line filtration RAIN LING recommends upstream of the valve.
Manual switch and flow knob	The current operating instructions for your configuration.
External pressure sensor	The sensor model, signal, range and connection kit for this option.
Installed size	A body and coil outline, mounting orientation and service clearance, with the valve box size it fits.

Sources [1] [2] [7] [10] [11]

Water hammer, certificates and warranty

RAIN LING says its valves open gradually to reduce water hammer. UF/IFAS explains that surge depends on how fast water velocity changes and how quickly valves close, in the context of each pipe and flow system. Ask RAIN LING for the opening and closing times, and check surge for your own zone switching and pipeline. RAIN LING's air-release valves can be quoted for the same pipeline at that stage.

The product pages mention CE, ISO9001 and a three-year warranty. Ask for the declaration of conformity for your configuration, the certificate with its scope and validity, and the warranty contract terms.

RAIN LING's application photos show farm and garden use. For your order, keep the code, drawing, electrical and hydraulic data and the commercial documents together.

Sources [1] [2] [3] [4] [6] [9] [10] [11]

Buyer questions

Which AC coil current should I design for?

The webpage gives 0.28/0.15 A and the EVA100 graphic 0.30/0.18 A, opening/holding. Ask which applies to your coil revision; plan on the higher pair until RAIN LING confirms. [1] [3]

Does the DC valve work like the AC valve?

No. The EVD100 graphic adds a pulse-width condition. Ask for the pulse, current and polarity your controller must provide. [1] [2] [3] [4]

Can a 1 A controller open four valves together?

Four EVA100 coils at 0.30 A opening come to 1.20 A. Ask RAIN LING whether the RL-CA08 output is per station or total and how many valves it may start at once. [3] [8]

Does the manual knob regulate downstream pressure?

It adjusts flow and allows manual opening. Ask about a pressure-regulating version if you need constant downstream pressure. [1] [2] [7]

Are the valves CE and ISO9001 certified?

RAIN LING's pages say so and offer a three-year warranty. Ask for the declaration, certificate scope and warranty terms in writing for your order. [1] [2]

Prepare a model-specific brief

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Sources

Specifications come from the manufacturer's publications listed below, with the date each was checked.

RAIN LING official AC solenoid-valve description
manufacturer · Checked 2026-10-12
AC24 V±10%, 50/60 Hz, 0.28 A opening and 0.15 A holding; glass-filled nylon, EPDM, manual flow control and gradual opening. Mentions CE, ISO9001 and a three-year warranty.
RAIN LING official DC solenoid-valve description
manufacturer · Checked 2026-10-12
DC12 V with a 9–15 V range, body and diaphragm materials, manual flow and gradual opening.
Original EVA100 one-inch AC technical graphic
manufacturer · Checked 2026-10-12
AC24 V±10%, 50/60 Hz, 0.30 A opening and 0.18 A holding, 0.5–8 bar, ≤60°C, glass-filled nylon and EPDM.
Original EVD100 one-inch DC technical graphic
manufacturer · Checked 2026-10-12
DC12 V±10% (9–15 V), pulse width <100MS, 0.5–8 bar and ≤60°C.
Chinese official two-inch catalogue entry
manufacturer · Checked 2026-10-12
Title EVA200/EVD200/EVD20024 with brochure panels; the catalogue lists other sizes as order choices.
Original Chinese hydraulic information panel
manufacturer · Checked 2026-10-12
Family working range on the two-inch entry: 0.5–8 bar, 5–100 m³/h and ≤60°C.
Original pilot-filter/manual-control feature panel
manufacturer · Checked 2026-10-12
Washable pilot-line filter, manual switch, flow control and an external pressure-sensor option.
Official RL-CA08 controller interface for a load enquiry
manufacturer · Checked 2026-10-12
RL-CA08 controller with AC220 V 50 Hz input and AC24 V 1 A output, useful for sizing valve loads.
UF/IFAS Cir1425: water-hammer context
official disclosure · Checked 2026-10-12
Pages 5–6 explain how velocity changes and valve closing time cause surge in irrigation pipelines.
Original AC-page valve photograph
manufacturer · Checked 2026-10-12
Valve body with an AC-marked coil.
Original DC-page valve photograph
manufacturer · Checked 2026-10-12
Valve body, manual knob and red and black coil leads.

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