PT. TRI SINAR PURNAMA · Est. 1983 · Semarang, Indonesia
Malleable Iron Pipe Fittings, Engineered Since 1983
Four decades of foundry expertise — supplying certified malleable & galvanized iron pipe fittings to contractors, distributors and OEM partners in 20+ countries.
Our Products
Both from TSP & G-Brand
Malleable Iron Pipe Fittings
Galvanized and black fittings with 4 thread standards. 93+ products including elbows, tees, unions, nipples, sockets, reducers, plugs, bushings, crosses, and flanges. SNI 0139 & FM Approved.
Carbon Steel Buttwelded Fittings
High quality carbon steel butt welded fittings complying with ANSI/ASME B16.9 and JIS B2304/B2311 standards. Elbows, tees, reducers, caps, and stub ends for industrial pipelines.
Other Malleable Casting
OEM malleable iron casting from gas fittings to pipe hangers and bespoke components. Custom specifications available for industrial, infrastructure, and specialized project requirements.
Built on legacy.
Proven by quality.
For over 40 years, PT. Tri Sinar Purnama has been the backbone of Indonesia's malleable iron pipe fittings industry — from national infrastructure to landmark projects across Southeast Asia, the Middle East, and Europe.
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Widest certifications in Indonesia
SNI 0139, ISO 9001, FM Approved (EN/JIS/ASME), TKDN, UL Listed, DVGW — covering domestic and all major export market requirements.
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Full vertical integration
In-house iron casting, CNC machining, threading, galvanizing, and QC testing — no outsourcing, full traceability.
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Ready stock, fastest delivery
15,600 tons/year capacity with large ready stock ensures the fastest delivery times in Indonesia — no waiting for imports.
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Made in Indonesia — TKDN
High TKDN value for P3DN compliance on government projects. The safest non-China alternative for any specification.
Our Commitment to Quality
Every TSP product is backed by certifications recognised across domestic and international markets — from SNI 0139 and TKDN to FM Approvals, UL Listing, DVGW, UPC, ISO 9001:2015 and ethical-trade SMETA audits.
Source Malleable Iron Fittings With Confidence
Discuss your specifications, volumes and certifications with our team. We supply contractors, distributors and OEM partners with dependable quality and lead times.
Contact Us →Small Component,
Huge Projects
TSP is proud to be part of major projects around the world and across Indonesia — our fittings are built into landmarks like Marina Bay Sands and Changi in Singapore, KLCC Petronas Towers and Penang Times Square in Malaysia, plus Conrad Bali, Paragon Mall Semarang, and City of Tomorrow Surabaya.
Exporting to 20+ countries worldwide.
TSP malleable iron pipe fittings are trusted by engineering firms and contractors across Asia, Europe, the Middle East, and the Americas. The reliable Made-in-Indonesia alternative.
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