Excel Loading Systems XL1.04SO-01 — 4" XL-1.0 Product Seal O-Ring, Buna. 4" product seal O-ring, Buna (2 per S20 4" swivel assembly).
Source: Excel Loading Systems product catalog / swivel drawing (view PDF). Confirm details with FMS before ordering.
Excel Loading Systems loading arms, swivels and couplers are supplied and supported by Flow Measurement Services (FMS). Contact FMS for a formal quote, availability and documentation.