For procurement managers and marine engineers sourcing Showa valve Singapore supply, finding a stocking distributor who understands JIS and DIN standards and can turn around quotes quickly is half the battle. Aik Soon Hardware Pte Ltd — a Singapore valve stockist and distributor established in 1982 — has represented the Showa brand for decades, holding ready stock of the most commonly specified gate valves, globe valves, butterfly valves, and strainers for marine and industrial applications across Singapore and the region.

This guide covers the full Showa valves Singapore product range available through Aik Soon — in both JIS and DIN (PN) ratings — key specifications, typical marine and industrial valve applications, and what procurement teams need to know when specifying Showa valves for newbuilds, dry dock, or ship repair projects.

What Is Showa Valve?

Showa is a Japanese valve manufacturer with a long-established reputation in the marine and industrial sectors across Asia. Their product range is engineered to both JIS (Japanese Industrial Standards) and DIN (PN-rated) specifications — covering the two dominant standards in the Singapore shipyard supply chain. JIS is prevalent on vessels built or repaired in Japan, South Korea, and Southeast Asia; DIN PN-rated valves are widely specified on European-built tonnage and in industrial plant applications.

Showa valves — including gate valves, globe valves, butterfly valves, check valves, and strainers — are specified by classification societies including DNV, Lloyd's Register, ABS, Bureau Veritas, and ClassNK, making them a reliable choice for vessels requiring class-certified valve components. As a Singapore valve distributor and stockist, Aik Soon Hardware Pte Ltd supplies Showa marine valves and industrial valves to shipyards, ship owners, oil and gas companies, and engineering firms throughout the region. The brand is well recognised by procurement teams at Singapore's major shipyard and ship repair facilities, including Seatrium's yards at Tuas, Benoi, and Gul.

Showa Valve Product Range Available in Singapore

Gate Valves

Showa gate valves are available in bronze and cast iron across both JIS and DIN (PN) pressure ratings, covering the most commonly specified standards in marine and industrial applications:

JIS-rated:

• JIS 5K — low-pressure applications, typically fresh water, sea water cooling, and ballast systems
• JIS 10K — the most widely specified rating across general marine service
• JIS 16K — higher-pressure steam, fuel oil, and hydraulic applications
• JIS 20K — demanding pressure service in offshore and petrochemical environments

DIN PN-rated:

• PN10 and PN16 — the most common DIN ratings for general marine and industrial service, compatible with European-standard flanging

Bronze gate valves are specified for sea water and corrosive media service. Cast iron gate valves are used for fresh water, fuel oil, and non-corrosive general service. Aik Soon carries both materials in sizes from 15mm through to 250mm for the most common ratings, with less common sizes available on indent.

Globe Valves

Showa globe valves provide precise flow control and are used across fuel oil, lubricating oil, cooling water, and steam systems on marine vessels. The globe valve's design — with a plug or disc moving perpendicular to the flow — makes it the preferred choice wherever throttling is required rather than simple on/off isolation.

Available configurations include:

• JIS F3034 straight-pattern globe valves in bronze, 5K and 10K rated
• DIN PN10/PN16 globe valves in bronze and cast iron for European-standard installations
• Angle globe valves for installations where a 90° change of direction is required in the pipework, reducing the need for an additional elbow fitting
• Bellow-sealed globe valves for volatile or toxic media where zero stem leakage is specified

Butterfly Valves

Showa butterfly valves are used in large-bore, low-pressure applications including sea water cooling systems, ballast systems, and ventilation ducting. Their compact form factor and low pressure drop make them the preferred choice for large-diameter lines where gate or globe valves would be impractical.

Key specifications:

• JIS 5K and 10K wafer and lug-type butterfly valves
• DIN PN10/PN16 butterfly valves for European-flanged systems
• Cast iron body with bronze or stainless steel disc, depending on media
• Available in sizes 50mm to 250mm from stock, larger sizes on indent
• Suitable for manual operation or pneumatic/electric actuator attachment

Lug-type butterfly valves allow line isolation from either side and are specified where end-of-line service or maintenance isolation is required. Wafer-type valves are used where a simpler, more compact installation is acceptable and both flanges remain in service.

Strainers

Showa Y-strainers and basket strainers protect downstream equipment — pumps, heat exchangers, instrumentation — from particulate contamination in pipework systems. They are specified at the inlet of virtually every critical piece of marine machinery.

• Y-strainers (JIS 5K and 10K, DIN PN10/PN16, bronze and cast iron): compact, inline installation for general service
• Duplex basket strainers: allow screen cleaning without shutting down the line — essential on sea water cooling and fuel systems where continuous operation is required
• Screen mesh sizes from 20 to 100 mesh depending on the downstream equipment's tolerance for particulate

Marine Applications for Showa Valves

Showa valves are found across virtually every vessel type calling at or repaired through Singapore:

Bulk carriers and tankers — Sea water cooling, ballast, fuel oil transfer, and cargo heating systems. JIS 10K gate and globe valves dominate these applications.

Container ships — Engine room sea water cooling, fresh water cooling, fuel oil service, and fire suppression systems. High cycling frequency demands reliable packing and seat integrity.

FPSOs and offshore platforms — Topside process valves in fuel gas, produced water, and injection systems. Higher-pressure ratings (16K and 20K) are more prevalent in offshore service.

Chemical tankers — Stainless steel-trimmed globe and gate valves for aggressive media. Material certification traceability is typically required.

Ship repair at Singapore yards — Replacement of corroded or worn bronze gate valves and globe valves is the most common single transaction type for a Singapore valve stockist like Aik Soon Hardware Pte Ltd. Ready stock of Showa JIS 5K and 10K bronze marine valves across common sizes means ship repair teams can source and receive same-day or next-day for most standard items.

Why Specify Showa Valves?

JIS and DIN Compliance

Showa valves are manufactured to both JIS and DIN (PN) standards — covering the two most widely specified systems in the Singapore marine market. JIS is the dominant standard for vessels built in Japan and Korea; DIN PN ratings are specified on European-built tonnage and in many industrial plant applications. Stocking both means Aik Soon can serve the full range of Singapore's vessel fleet and onshore industrial customer base from a single source.

Class Certification

Showa valves carry approvals from major classification societies. Vessels under DNV, LR, ABS, ClassNK, or BV class can specify Showa with confidence that the required certification documentation will be available. Aik Soon can provide mill certificates and class-specific documentation on request.

Availability — Singapore Valve Stockist with Ready Inventory

As a Singapore valve stockist and distributor, Aik Soon Hardware Pte Ltd holds ready inventory of the most common Showa valve types and sizes — gate valves, globe valves, butterfly valves, and strainers across both JIS and DIN ratings. For ship repair scenarios where minimising off-hire time is the priority, ex-stock availability of Showa valves in Singapore is a material advantage over sourcing direct from a manufacturer with 6–8 week lead times.

Sourcing Showa Valves Through Aik Soon Hardware

Aik Soon Hardware Pte Ltd has been a trusted Singapore valve stockist and distributor of marine valves and industrial valves since 1982. As a Showa stocking distributor, we carry a full range of Showa valves Singapore — gate valves, globe valves, butterfly valves, check valves, and strainers — across JIS 5K and 10K ratings and DIN PN10/PN16, in bronze and cast iron.

For standard sizes (15mm–250mm), we can typically provide same-day or next-day quotation and delivery in Singapore. For less common ratings or configurations, we will advise lead times at time of enquiry.

We supply directly to shipyard procurement teams, ship owners, engineering firms, and project contractors. No minimum order. Enquiries by email, phone, or the contact form on our website.

Frequently Asked Questions

Q: Does Aik Soon carry Showa valves in stock in Singapore? A: Yes. Aik Soon Hardware Pte Ltd is a Singapore valve stockist and distributor carrying a full range of Showa valves — gate valves, globe valves, butterfly valves, and strainers — for both marine and industrial applications. Common JIS 5K and 10K sizes in bronze and cast iron are available for immediate quotation and delivery.

Q: What pressure ratings are available for Showa valves? A: Showa valves are available in JIS 5K, 10K, 16K, and 20K ratings, as well as DIN PN10 and PN16. JIS 5K and 10K cover the majority of marine applications; DIN PN10/PN16 are specified for European-standard vessels and industrial plant. Higher JIS ratings (16K and 20K) are used in steam, high-pressure fuel, and offshore process service.

Q: Are Showa valves class-certified? A: Yes. Showa valves carry approvals from major classification societies including DNV, Lloyd's Register, ABS, Bureau Veritas, and ClassNK. Certification documentation can be provided upon request.

Q: What sizes are available for Showa gate and globe valves? A: Sizes from 15mm to 250mm are available across the most common JIS and DIN ratings. Contact Aik Soon for specific size, rating, and material availability.

Q: Can Aik Soon supply Showa valves urgently for ship repair? A: Yes. For common sizes and ratings we hold ex-stock and can turn around quotes quickly. If you have an urgent requirement for a vessel in Singapore for dry dock or repair, contact us directly and we will advise availability and lead time immediately.

Looking for Showa valves in Singapore? Aik Soon Hardware Pte Ltd is a Singapore valve stockist and distributor carrying ready stock of Showa marine valves and industrial valves — gate valves, globe valves, butterfly valves, and strainers in JIS and DIN ratings. Contact us via the contact form at aiksoon.com.sg or call our team directly for a fast quote.

View the catalogue here: https://www.aiksoon.com.sg/Our-Brands/Showa