Sumisansui Sumi Rain Irrigation - Gentle, Uniform Watering for Fields & Turf

Manufacturer Part Number:

Tilmor Part Number: KIT-6335

Starting at $1,960

The Sumi Rain is the largest and most durable overhead irrigation tube in the Sumisansui lineup, built for growers managing larger fields and demanding conditions. Designed to deliver a gentle, uniform rain in a rectangular spray pattern, Sumi Rain eliminates the dry spots and overlap common with traditional circular sprinklers—resulting in more consistent crop growth and efficient water use.

Made in Japan and trusted by farmers worldwide, Sumi Rain operates at medium pressure with medium to high flow, making it a reliable option for vegetables, flowers, turf, and field-scale growers. Its heavy-duty polyethylene construction is built to last season after season, while laser-cut holes ensure even water distribution across the entire coverage area. Paired with a wheeled winder reel, the system is easy to deploy, move, and store without damaging the tube.

Why Farmers Choose the Sumi Rain

Rectangular coverage that matches real farm layouts
Wide spray angle resists wind drift and increases uniformity
Gentle rainfall protects seeds, soil structure, and young plants
Efficient irrigation with no overlapping or dry zones
Heavy-duty construction for long-term durability
Mobile system with wheeled winder for fast setup and retrieval

Specifications at a Glance

Operating Pressure: 22 PSI (36 PSI max)
Flow Rate: 0.085–0.109 gallons per minute per foot
Spray Width: 42–52 ft (adjustable based on pressure)
Expandable: Two tubes can be connected for extended length
Integration: Compatible with 2" irrigation systems
Jump to Flow Rate Tables & Additional Specs Below

Shop R-Wider for MAX 30psi, 32ft Spray Width

Shop Mark ll for MAX 12psi, 13ft Spray Width

Shop Mark lll for MAX 12psi, 16ft Spray Width

Tube

None

328ft Roll - Sumirain 50H-200 tube

Add $975

PB-6323

Hose Connection

Connect the Sumi Rain tube to an irrigation water supply.

2" MNPT threads on one end, Sumi Rain connector with rubber sealing surface on the other end.

Does Not Include Hose Clamp

Connect the Sumi Rain tube to an irrigation water supply.

2" MNPT threads on one end, Sumi Rain connector with rubber sealing surface on the other end.

Does Include Hose Clamp.

None

Sumirain 50 Connector

Add $10

PB-6325

Sumirain 50 Connector + Hose Clamp

Add $13

PB-6326

Winder

The Sumi Rain Winder is a heavy-duty, purpose-built tool that makes deploying, retrieving, and storing Sumi Rain irrigation tubes fast and effortless. Designed for field use, it reduces labor while protecting your irrigation investment season after season.

Pneumatic tire and ergonomic handles for smooth movement across the field
Long crank arm for easier, more efficient winding
Integrated rollers that squeeze water from the tube during retrieval
Built-in cleaning brush removes dirt and mud as you wind
Spool brake for controlled, tangle-free operation
Rugged construction built to handle daily farm use

None

Winder I-C

Add $950

PB-6324

Stopper

Sumi Rain Tube stopper is a simple device used to stop the flow of water through the Sumi Rain Irrigation tube.
This device can be used anywhere along the length in order to control the coverage length of the irrigation spray.

How to use: Simply unscrew the wing nuts, then place one plate on either side of the tube making sure to line up the bolts on one plate with the holes on the other plate. Install the wing nuts and tighten with fingers.

Product	Price (ea)	Quantity	Availability
Sumirain Stopper PB-6327	$25		In stock

Price:

In Stock

Qty

Sumi Rain	MAX	MID	MIN	Units
Operating Pressure	36.2595	29.0076	21.7557	psi
Coverage Width	52.49344	49.2126	42.65092	ft
Recommended Tube Interval	41.994752	39.37008	34.120736	ft
Average Precipitation Rate	0.24803	0.23622	0.23622	in/hr
Average Flow Rate	0.10871	0.09744	0.08455	gpm/ft
Flow Rate at 65 feet	0.10952	0.09744	0.08455	gpm/ft
Flow Rate at 131 feet	0.10952	0.09744	0.08455	gpm/ft
Flow Rate at 196 feet	0.10952	0.09824	0.08455	gpm/ft
Flow Rate at 262 feet	0.10952	0.09744	0.08455	gpm/ft
Flow Rate at 328 feet	0.10952	0.09744	0.08455	gpm/ft
Flow Rate at 394 feet	0.10871	0.09744	0.08455	gpm/ft
Flow Rate at 460 feet	0.10871	0.09744	0.08375	gpm/ft
Flow Rate at 525 feet	0.10791	0.09663	0.08375	gpm/ft
Flow Rate at 590 feet	0.10791	0.09583	0.08294	gpm/ft

Sumi Rain GPM at different tube lengths
Tube Length (ft)	36 psi	29 psi	22 psi
65.6	7.18442	6.39202	5.5468
131.2	14.36884	12.78404	11.09359
196.8	21.55326	19.33455	16.64039
262.4	28.73769	25.56809	22.18718
328	35.92211	31.96011	27.73398
393.6	42.78957	38.35213	33.28078
459.2	49.92117	44.74416	38.45779
524.8	56.63015	50.71356	43.95176
590.4	63.70892	56.57732	48.97029
656	70.25942	62.86369	54.41143

Name	Sumirain 50H-200 tube	Sumirain 50 Connector	Sumirain 50 Connector Kit	Winder I-C	Sumirain Stopper
Image
Tilmor Part Number	PB-6323	PB-6325	PB-6326	PB-6324	PB-6327
Manufacturer Part Number	SR50HT-330F	SR50H-SC-N200	SR50H-SC-N200-K	SR50HW-J200	SR50H-TS-S200
Country of Origin	Japan	Japan	Japan	Japan	Japan
Weight	32.3000 lbs.	0.5000 lbs.	0.5000 lbs.	43.0000 lbs.	1.0000 lbs.
California Residents	WARNING: Click here for more information on Proposition 65
Warranty	Warranty	Warranty	Warranty	Warranty	Warranty