DIPTI METAL INDUSTRIES
Butt Weld Pipe Reducers — Concentric & Eccentric
Precision-engineered reducers delivering smooth area transitions to control velocity, minimize turbulence and avoid cavitation. Manufactured in CS Butt Weld Pipe Reducers, SS Butt Weld Pipe Reducers, Alloy Butt Weld Pipe Reducers, Duplex Butt Weld Pipe Reducers & Nickel Alloys Butt Weld Pipe Reducers for oil & gas, chemical, power, marine, water & desalination.
🏭 Dipti Metal: Your Global Source for Butt Weld Reducers
Concentric reducers keep the pipe centerline constant, ideal for vertical lines and balanced flow. Eccentric reducers provide an offset bore; installed flat on top on pump suction to prevent air pockets, or flat on bottom in horizontal slurry lines to maintain drainage. Dipti Metal supplies both types per ASME B16.9 with optional MSS SP-75 high-test requirements, backed by rigorous quality controls for projects in the USA Butt Weld Pipe Reducers, UK Butt Weld Pipe Reducers, UAE Butt Weld Pipe Reducers, Butt Weld Pipe Reducers Saudi Arabia, Butt Weld Pipe Reducers Germany, Butt Weld Pipe Reducers Singapore and worldwide.
We furnish full schedules, heavy-wall options, and custom tapers/lengths per drawing. Document packs include EN 10204 3.1/3.2 MTCs, optional TPI, and complete NDT as specified.
🔧 Butt Weld Pipe Reducers Product Specifications & Technical Details
Butt Weld Pipe Reducers Dimensions & Sizes
- NPS: 1/2″ (DN15) to 48″ (DN1200); larger/custom on request
- Schedules: SCH 10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS
- Types: Concentric Reducer • Eccentric Reducer (Flat Top / Flat Bottom orientation as required)
- Taper length: Standard per B16.9; special long/short tapers on request
Standards & End Prep
- Dimensional: ASME B16.9 (factory-made wrought fittings)
- High test: MSS SP-75 (as applicable)
- International: DIN / EN (e.g., DIN 2616), JIS / ISO equivalents
- Bevels: ASME B16.25 butt-weld ends (optimized weld prep)
- NDT: PMI, Hydro, RT/UT, LPT/MPT; QAP/ITP per project
For pump suction, specify eccentric reducers with flat on top. For slurries/drainage, use flat on bottom. Confirm taper, end thickness and mismatch allowances with line spec.
🧱 Butt-Weld Pipe Fittings — Grades & International Equivalents
Butt-weld-only grades commonly used for reducers. Confirm chemistry/mechanical properties with project specs. 3.1/3.2 MTCs with full heat traceability are available.
| Butt Weld Pipe Reducers Material Family | Butt Weld Pipe Reducers Grade / Alloy | Butt Weld Pipe Reducers UNS | Butt Weld Pipe Reducers EN / W.Nr. | Butt Weld Pipe Reducers ASTM / ASME | Butt Weld Pipe Reducers DIN / ISO / BS / GOST |
|---|---|---|---|---|---|
| Butt Weld Pipe Reducers Carbon Steel | ASTM A234 WPB | K03006 | — | ASTM A234 WPB / ASME SA234 | DIN 2609; BS 1640; GOST 17375 |
| ASTM A234 WPC | K03506 | — | ASTM A234 WPC / ASME SA234 | — | |
| ASTM A420 WPL6 / WPL3 (LTCS) | K03011 | — | ASTM A420 WPL6/WPL3 / ASME SA420 | DIN 17175; GOST 17375 | |
| Butt Weld Pipe Reducers Stainless Steel | ASTM A403 WP304 / 304L / 304H | S30400 / S30403 / S30409 | 1.4301 / 1.4307 | ASTM A403 / ASME SA403 | X5CrNi18-10 |
| ASTM A403 WP316 / 316L / 316Ti | S31600 / S31603 / S31635 | 1.4401 / 1.4404 / 1.4571 | ASTM A403 / ASME SA403 | X2CrNiMo17-12-2 | |
| ASTM A403 WP317 / 317L | S31700 / S31703 | 1.4449 / 1.4438 | ASTM A403 | — | |
| ASTM A403 WP321 / 321H | S32100 / S32109 | 1.4541 / 1.4878 | ASTM A403 | X6CrNiTi18-10 | |
| ASTM A403 WP347 / 347H | S34700 / S34709 | 1.4550 | ASTM A403 | X6CrNiNb18-10 | |
| ASTM A403 WP904L | N08904 | 1.4539 | ASTM A403 | X1NiCrMoCu25-20-5 | |
| Butt Weld Pipe Reducers Alloy Steel (Cr-Mo) | ASTM A234 WP1 | — | 1.5415 | ASTM A234 WP1 | 15Mo3 |
| ASTM A234 WP5 | — | 1.7362 | ASTM A234 WP5 | 5CrMo9 | |
| ASTM A234 WP9 | — | 1.7386 | ASTM A234 WP9 | X12CrMo9-1 | |
| ASTM A234 WP11 / WP22 | K11597 / K21590 | 1.7335 / 1.7380 | ASTM A234 | 13CrMo4-5 / 10CrMo9-10 | |
| ASTM A234 WP91 | K91560 | 1.4903 | ASTM A234 WP91 | X10CrMoVNb9-1 | |
| Butt Weld Pipe Reducers Duplex & Super Duplex | ASTM A815 S31803 / S32205 | S31803 / S32205 | 1.4462 | ASTM A815 / ASME SA815 | X2CrNiMoN22-5-3 |
| ASTM A815 S32750 / S32760 | S32750 / S32760 | 1.4410 / 1.4501 | ASTM A815 / ASME SA815 | X2CrNiMoCuWN25-7-4 | |
| Nickel Alloys | ASTM B366 Monel 400 | N04400 | 2.4360 | ASTM B366 N04400 | NiCu30Fe |
| ASTM B366 Inconel 600 | N06600 | 2.4816 | ASTM B366 N06600 | NiCr15Fe | |
| ASTM B366 Inconel 625 | N06625 | 2.4856 | ASTM B366 N06625 | NiCr22Mo9Nb | |
| ASTM B366 Incoloy 800 / 825 | N08800 / N08825 | 1.4876 / 2.4858 | ASTM B366 N08800/N08825 | NiCr21Mo | |
| ASTM B366 Hastelloy C-276 | N10276 | 2.4819 | ASTM B366 N10276 | NiMo16Cr15W | |
| ASTM B366 Alloy 20 | N08020 | 2.4660 | ASTM B366 N08020 | NiCr20CuMo |
For sour service, request NACE MR0175 / ISO 15156 compliance. Matching flanges, gaskets and bolting can be supplied as a package.
📦 Product Names by Grade
- Carbon Steel Reducers — ASTM A234 WPB / WPC; LTCS ASTM A420 WPL6 / WPL3
- Stainless Steel Reducers — ASTM A403 WP304/L/H, WP316/L/Ti, WP317L, WP321/H, WP347/H, WP904L
- Alloy Steel Reducers — ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
- Duplex & Super Duplex Reducers — ASTM A815 S31803 / S32205 / S32750 / S32760
- Nickel Alloy Reducers — ASTM B366 Monel 400; Inconel 600/625; Incoloy 800/825; Hastelloy C-276; Alloy 20
🧪 Quality Assurance & Certifications
Reducers are controlled through raw-material verification, forming, heat treatment, taper machining, and final inspection.
Certificates
EN 10204 3.1/3.2 MTCs; ISO 9001 QMS; NACE MR0175 (on request).
Testing
PMI, Hydro, RT/UT, LPT/MPT; hardness, tensile, impact as required.
TPI Options
SGS, BV, TÜV, LR, DNV and others; full QAP/ITP & export packing docs.
We validate dimensional accuracy, weldability, and taper integrity to ensure safe, long-term service.
🏗️ Industries We Serve
Oil & Gas
Pump suction (eccentric), process transitions (concentric).
Chemical & Petrochem
Controlled velocity to protect equipment.
Power & Energy
High-temp Cr-Mo grades for steam lines.
Marine & Offshore
Duplex/SDSS & Ni alloys for chlorides.
Water & Desalination
Smooth area changes to reduce losses.
OEM & EPC
Project docs, TPI, rapid global shipping.
🌍 Butt Weld Pipe Reducers Global Reach & Expertise
Markets We Serve for Butt Weld Pipe Reducers
- Butt Weld Pipe Reducers in Middle East: UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain
- Butt Weld Pipe Reducers in Europe: Germany, UK, Netherlands, France, Italy, Spain
- Butt Weld Pipe Reducers in North America: USA, Canada
- Butt Weld Pipe Reducers in Asia: India, Japan, South Korea, China, Singapore
- Butt Weld Pipe Reducers in SE Asia & Oceania: Malaysia, Indonesia, Thailand, Vietnam, Australia
- Butt Weld Pipe Reducers in Africa & South America: Nigeria, Egypt, South Africa; Brazil, Mexico, Argentina
Butt Weld Pipe Reducers Applications
- Velocity control and pressure-drop optimization
- Pump suction lines (air pocket avoidance)
- Slurry & drainage lines (orientation critical)
- Custom tapers and heavy-wall transitions
Ready stock and responsive production ensure short lead times for both concentric and eccentric reducers.
✅ Why Partner with Dipti Metal?
- Complete Butt Weld Pipe Reducers Range: Concentric & Eccentric reducers across sizes/schedules.
- Certified Butt Weld Pipe Reducers Quality: ASME/ASTM/EN/DIN/JIS compliance with full documentation.
- Competitive Butt Weld Pipe Reducers Pricing: Value-driven offers for global projects.
- Export Butt Weld Pipe Reducers Capability: Secure packing, export docs, worldwide delivery.
- Reliable Butt Weld Pipe Reducers Stockist: Ready-to-ship inventory for urgent needs.
- Custom Butt Weld Pipe Reducers Fabrication: Special tapers, end thickness, coatings & markings.
- Customer-Centric: Technical assistance from inquiry to post-delivery.
⭐ Customer Reviews
Refinery Turnaround (USA)
“Concentric reducers were dimensionally spot-on; weld preps and markings were consistent.”
Rating: ★★★★★
Utilities Engineer
“Eccentric reducers installed flat-top on pump suction; smooth commissioning.”
Rating: ★★★★☆
Average rating: 4.8/5 (29 reviews).
✉️ Request a Quote (Send via WhatsApp)
Fill the form and WhatsApp will open with your RFQ pre-filled. You can attach drawings in the chat.