Stainless Steel Eccentric Reducers

Name: Stainless Steel Eccentric Reducers
Brand: HuaboPipe

304/316L stainless steel eccentric reducers made to order. List both end sizes, wall thicknesses and quantity; provide a drawing for offset and orientation requirements.

Specifications

Size

DN15–DN1200 usual; larger per drawing, up to DN3000; both ends per order

Wall / SCH

Sch10s–XXS, matched to pipe

Standard

GB/T 12459, ASME B16.9, EN 10253, DIN, JIS; others per drawing

Bevel / ends

BW bevel per standard or drawing

Grade

304/304L, 316/316L, 310S, 321, 2205, 2507

Material specification

ASTM A403 WP304/WP304L, WP316/WP316L, WP321, WP310S; ASTM A815 WPS31803/S32205, WPS32750

Process

cold-formed → solution annealed → beveling and sizing → surface treatment (polishing, pickling, sand blasting and sand tumbling)

Inspection

MTR available on request; hydrotest/NDT and lead time per order

Marking

Hard stamping or ink marking, per standard or order

Certificates

ISO 9001/14001/45001, PED, DNV, BV, TÜV SÜD factory approvals; see this site’s Certificates page

Inquiry checklist

When inquiring, state: size, wall/SCH, grade, standard, qty; state both end sizes and wall thickness; non-standard parts can be made to drawing or sample.

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How to choose

Flat on top is usual at pump suction to avoid trapping air; flat on bottom is used where the line must drain. Mark the orientation on the drawing. A concentric reducer is a different geometry with a shared centerline.

Buying Eccentric Reducers for Stock Replenishment?

Send a line-by-line purchasing list for a mixed-size trial order. Standard items can be reviewed together; minimum quantities for special items and lead time are confirmed after checking the specifications, quantities and production schedule.

What to include in each line

Eccentric geometry; drawing for offset or installation orientation requirements
Large and small end DN/NPS or outside diameters
Wall thickness or schedule and end preparation at each end
Material specification, grade and seamless or welded construction requirement
Dimensional standard, overall length or drawing reference and quantity
Marking, material document type and any additional testing

Example inquiry line (for quotation only):
Eccentric reducer | 316L | NPS 3 x NPS 2 | Sch40S at both ends | Seamless required | EN 10253 | 20 pcs

Add your required material specification and inspection documents. Include the destination and requested delivery date for the order.

Material Documents & Traceability

Material documentation with heat numbers, chemical composition and mechanical test results can be supplied with traceability to the corresponding products or batches. Specify the document type and marking requirements before ordering. Inspection and certificate coverage are confirmed for the ordered items.

Combining several fitting types? See our stainless steel butt-weld fittings supply overview, or send your complete list for a quote.

FAQ

Which reducer dimensions should I provide?

Send the large and small end outside diameters or DN/NPS, wall thickness at each end, overall length, material, standard and quantity. Mark flat-side orientation on the drawing.

Should the flat side be on top or bottom?

Flat on top is usual at pump suction to avoid trapping air; flat on bottom is used where the line must drain. Mark the orientation on the drawing.

When should I compare a concentric reducer?

Compare it when the layout calls for both pipe centerlines to stay aligned. Confirm venting, drainage and equipment connection requirements before changing geometry.

Can both ends have different wall thicknesses?

Include the wall and end-preparation requirements for each end in the inquiry. The transition dimensions and manufacturing feasibility are confirmed from the specification or drawing.

Can I order eccentric and concentric reducers together?

Yes, mixed standard-item lists can be reviewed. Identify the geometry on every line and provide both end sizes, walls and quantities. We confirm the combinations, any minimum quantities and production lead time before the order is agreed.

Are all published sizes available from stock?

These eccentric reducers are supplied to order. Send your list; minimum quantity and lead time are confirmed with the quote.

Prepare your inquiry

Send the dimensions, material, quantity and inspection requirements above. Include the drawing revision and delivery destination so the quotation can be checked against the same specification.

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