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Discussion History

Expansion Spool

Assembly

Slip-jointed spool that takes up axial thermal growth of the casing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Expansion Spool parts and their functions

6 top-level parts · 8 parts in total · full bill of materials below
Expansion Spool parts diagram: 1 expansion mandrel, 2 expansion housing, 3 dynamic slip-joint seal, 4 ring joint gasket (RTJ), 5 coil spring, 6 fastener set. 8 parts in 6 top-level items.
Expansion Spool parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Expansion Mandrel 1× Inner sliding barrel
2 Expansion Housing 1× Outer body the mandrel slides in
3 Dynamic Slip-Joint Seal 2× Dynamic seals on the sliding joint
4 Ring Joint Gasket (RTJ) 2× Soft-iron/SS oval or octagonal metal seal ring for flange faces.
5 Coil Spring 1× Preload spring on the slip joint
6 Fastener Set 1× Bolts, nuts, and washers.

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Expansion Spool

6 top-level lines · 6 rows shown · 8 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Expansion Mandrel geothermal-wellhead-expansion-mandrel 1× 1 · part
2 Expansion Housing geothermal-wellhead-expansion-housing 1× 1 · part
3 Dynamic Slip-Joint Seal geothermal-wellhead-expansion-seal 2× 2 · part
4 Ring Joint Gasket (RTJ) geothermal-wellhead-rtj-gasket 2× 2 · part
5 Coil Spring coil-spring 1× 1 · part
6 Fastener Set fastener-set 1× 1 · part

Where the expansion spool is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Geothermal Wellhead

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks