DEENPU Townsend Type 81 Hydraulic BOP | Interchangeable Replacement Parts

Description

DEENPU supplies complete replacement parts for the Townsend Type 81 hydraulic ram BOP, a double-ram blowout preventer widely used in land and platform drilling. All DEENPU parts are dimensionally and functionally interchangeable with genuine Townsend Type 81 OEM components.

The Type 81 BOP uses a simple, robust design with horizontal ram change cylinders, bolted bonnets, and a one-piece body. Common bore sizes include 7-1/16″ and 9″ with working pressures of 3,000 psi and 5,000 psi.

Major Assemblies & Replacement Parts

• Bonnet assemblies — single-body and double-body studded bonnets, bonnet rebuild kits
• Operating cylinders & pistons — main operating and ram-change pistons/cylinders
• Ram assemblies — pipe rams, blind rams, variable bore rams, shear rams (see Ram Assemblies page)
• Door assemblies — doors, door seals, door studs, door nuts, bonnet bolts
• Manifold tubes & end covers — end covers, end cover seals, manifold tubes, alignment plugs
• Seals & softgoods — O-rings, piston crowns, packing glands, wiper rings, bonnet seals, port seals

Interchangeability Statement

DEENPU replacement parts are manufactured to match the original Townsend Type 81 drawings and material specifications. We provide the OEM part-number cross-reference so you can order confidently without changing your maintenance system.

Ordering Information

To order, please specify: BOP bore size, working pressure, single or double configuration, and the item numbers or descriptions you need. A complete hydraulic parts list with part numbers is available on the related product page.