#Japan #Tokyo #Sanwa Shutter #Flood Prevention #Water Guard

Sanwa Shutter's Innovative Expansion of Waterproof Shutter Range

Sanwa Shutter Industry Co., Ltd., headquartered in Itabashi, Tokyo, has announced the expansion of its design range for the popular "Water Guard Waterproof Shutter," effective March 27, 2026. This innovative move aims to meet the growing demand for effective flood prevention measures in various sectors.

Overview of the Water Guard Waterproof Shutter

Launched in October 2014, the Water Guard Waterproof Shutter has been a game-changer in flood prevention technology, designed to withstand flooding heights of up to 3 meters. It serves dual purposes: functioning as a regular management shutter, while providing robust waterproofing during extreme weather events such as typhoons and sudden heavy rains. This product has become essential in protecting critical infrastructures including subway stations, financial institutions, factories, and drainage facilities.

Expanded Design Range

In response to customer needs, Sanwa Shutter has enhanced the design specifications of the Water Guard without compromising its top-rated waterproof performance, classified under the JIS A 4716 standard as grade Ws-6, which guarantees leakage of less than 1 liter per hour per square meter. The design stretch has increased from max widths of 6,000 mm and heights of 4,000 mm to new dimensions of 8,000 mm in width and 5,250 mm in height. This upgrade allows installation in facilities such as fire stations and waste disposal plants, which often require larger openings to accommodate special vehicles and equipment.

Key Features of the Updated Shutter

1. Industry-Leading Dimensions: The Water Guard achieves the largest dimensions in the industry, accommodating heights of 4,459 mm at a width of 8,000 mm and 5,250 mm at 7,200 mm width, a feat that enhances its versatility across numerous applications.

2. Superior Waterproof Capability: Maintaining the high-level waterproof performance of Ws-6, the shutter now delivers an unparalleled protective barrier, even at its newly expanded dimensions, bolstering confidence during severe weather.

3. Price and Specifications: The model featuring the new specifications (W8,000 mm x H3,100 mm) is priced at ¥30,000,000, excluding installation, delivery, and other fees. This strategic pricing reflects the advanced engineering and technology embedded within the product.

Future Sales Targets

For the fiscal year of 2026, the company has set an ambitious sales target of ¥100,000,000 for this newly introduced model. These targets are based on projected market demands and customer interest in superior flood prevention technologies that align with the increasing prevalence of extreme weather conditions.

Commitment to Safety and Resilience

Sanwa Shutter is dedicated to providing various solutions related to disaster prevention, such as waterproof, windproof, fire-proof, and seismic-resistant products. The enhancement of the Water Guard range is part of their broader commitment to enhancing safety, security, and comfort for their customers and contributing positively to society.

For media inquiries, contact:
Sanwa Holdings Corporate Communication Department
佐藤・尾嵜・天野
Email: [email protected]
Tel: 03-3346-3331

For customer support regarding this product, contact:
Sanwa Shutter Customer Center
Tel: 03-3346-3011

Stay tuned for further developments as Sanwa Shutter continues to lead in safety technology innovations.