Running out of critical BOP spare parts on a rig is not just an inconvenience — it can force an expensive well suspension. API RP 53 requires operators to maintain minimum spare part inventories for BOP equipment on the rig at all times.

⚠️ Always use genuine CAMTOP OEM spare parts. Third-party parts may look identical but differ in material composition or dimensional tolerances, resulting in premature seal failure.

The Essential Softgoods Kit

What’s included in a CAMTOP Standard Bonnet Softgoods Kit per cavity:

Item Description Qty per Cavity
Front packing element Primary wellbore seal on pipe or bore face 2 (L + R)
Ram back seal Rear seal between ram body and bonnet bore 2 (L + R)
Top seal Seal between ram cavity and upper bore 1
Bonnet O-ring Seals bonnet face to BOP body 1
Hydraulic piston seals Seals between piston and cylinder bore 1 set
Manual lock rod seal Prevents external hydraulic fluid leak at lock 1

Elastomer Selection by Service Environment

Service Type Elastomer Temp Range
Standard (sweet service) NBR (Nitrile) –20°C to +100°C
Sour service (H₂S present) HNBR (Hydrogenated Nitrile) –20°C to +120°C
High temperature (>100°C) FKM (Viton) –15°C to +175°C

Ram Assembly Spare Sets

API RP 53 requires at least one complete spare set of ram assemblies on the rig for each cavity of each BOP in the stack, including:

  • One complete spare set of pipe rams for each pipe OD in use
  • One complete spare set of VBRs if VBRs are installed
  • One complete spare set of shear blind rams if installed

Parts Shelf Life

Item Recommended Shelf Life Storage Conditions
NBR softgoods kits 5 years from manufacture date Dark, dry, 15–25°C; away from ozone sources
HNBR softgoods kits 5 years from manufacture date Same as NBR
FKM softgoods kits 10 years from manufacture date Dark, dry, 15–25°C

CAMTOP Global Parts Stock Locations

  • Shanghai, China (main manufacturing & parts hub)
  • Dubai, UAE (Middle East & Africa coverage)
  • Houston, USA (Americas coverage)
  • Algeria (North Africa coverage)
  • Mexico (Latin America coverage)

Air freight from the nearest stock location ensures most parts reach your rig within 24–72 hours worldwide.

Order CAMTOP WU-Series BOP Spare Parts Today: sales@cposl.com | +86.21.58432768 | www.camtop-oilfieldtools.com/