Compression Straight Union, 316L, NPT Threads
Compression Straight Union: stainless steel compression fittings, equal tube-to-tube double ferrule. FerruleX factory RFQ. Stocked sizes ship fast.
- Brand
- FerruleX
- Material
- SS316 / SS316L / SS304
- Tube OD
- 3–25 mm / 1/8"–1"
- Type
- Straight compression union
- Pressure
- Per tube OD × wall; several-thousand-psig classes typical
- Stock5–7 days after confirmation
- Make to order15–25 days production
- Payment / termsT/T ~30% or L/C · FOB Shanghai / Ningbo
- OEMLogo and drawings accepted · price on RFQ
Description
A compression straight union joins two equal tube ends with double ferrules and no weld bead in the line. FerruleX unions run SS316/SS316L/SS304 across OD 3–25 mm and 1/8"–1" for instrumentation and light process tubing. Inline repairs, skid tubing and analyzer runs stay demountable for future instrument swaps. Working pressure follows the tube OD and wall per the maker's table; several-thousand-psig classes are typical in small OD. Values are class-typical references for this configuration; tube OD, wall and pressure class are confirmed on the RFQ. Quote tube OD and alloy preference to FerruleX — stocked unions ship fast on export RFQs. Leave straight tube beyond each nut so ferrules seat without fighting a nearby bend.
Unions are the preferred break point when a transmitter must come out of line without cutting tube. Leave straight tube length beyond each nut so the ferrules seat without fighting a nearby bend. FerruleX can supply matched nut/ferrule spare kits on the same RFQ for field stores. Equal-size double-ferrule union. Insert tube to shoulder, then tighten nut. SS304 / SS316 / SS316L.
- Connection
- Equal-size double-ferrule union.
- Install
- Insert tube to shoulder, then tighten nut.
- Materials
- SS304 / SS316 / SS316L.
Specifications
| Specification | Value |
|---|---|
| Brand | FerruleX |
| Material | SS316 / SS316L / SS304 |
| Tube OD | 3–25 mm / 1/8"–1" |
| Type | Straight compression union |
| Pressure | Per tube OD × wall; several-thousand-psig classes typical |
Request Quote
Prices stay on the RFQ. Send size, material, quantity and destination — the factory replies with price, lead time and packing.
Shipping & packing
Parts ship in a bag, inner carton and export carton. Large lots can go in a wooden case with a packing list and invoice. Default term is FOB Shanghai or Ningbo. Full notes are on thedelivery page.
Questions buyers ask
What should I send for a quote?
Size, material (SS304, SS316 or SS316L), quantity, end connection and destination. Add a sketch if the two ends are different.
How fast can this ship?
Stocked sizes usually leave 5–7 days after you confirm the quote. Make-to-order runs are about 15–25 days in production, then transit. Name the port if you want CIF.
Can I order a small trial or put my logo on it?
Yes. Trial quantities are quoted, and OEM marking or drawings are accepted. Payment is normally T/T with about 30% deposit, balance before shipment, or L/C at sight.
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