Offshore Oil & Gas Solutions Moon Pool
Drape Hoses

DSTI's Offshore Oil & Gas Fluid Swivel Joints & Rotary Joints for High Pressure Moon Pool Drape Hoses

DSTI's comprehensive line of High Pressure Inline (HPI) hose swivels for offshore moon pools, MPD systems and DAT systems.

DSTI focuses exclusively on fluid swivels and sealing technology for the world's most challenging and critical applications.

Trusted by leading oil and gas equipment manufacturers, operators and contractors, DSTI's HPI swivels maximize uptime while lowering operating costs by increasing the service life of drape hoses on vessels with dynamic positioning systems. This is done by eliminating the added stress and torsional loads the hoses are subjected to while operating in rough seas.

DSTI's moon pool swivels feature a redundant sealing system, inspection ports for identifying early warning signs of servicing needed, an internal locking mechanism for improved safety, and low-torque rotation at maximum working pressure. Additionally, every swivel shipment includes an IADC standard manufacturing record book (MRB) and an operation, maintenance and repair manual.

DSTI’s HPI product portfolio consists of 15 standard designs that allows our clients the ability to standardize their entire fleet of vessels with DSTI’s moon pool hose swivels. If none of the standard HPI configurations suit your needs, contact a member of our team to discuss customized options featuring the same, field-proven sealing technology and design benefits.

  • High Pressure Flexible Hoses Testimonial
    "DSTI's MPD swivels performed better than the other swivels we have experience with. From the packaging to the performance, I am impressed." Subsea Supervisor

    "DSTI product quality and performance exceeded my expectations. The swivels performed as advertised and I intend to use them again on my next project." MPD / Well Control Technical Superintendent
  • High Pressure Flexible Hoses Testimonial
    "It was a pleasure working with DSTI. The design features of the DSTI HPI Swivels provide the reduced full working pressure rotational torque our clients are asking for. I highly recommend DSTI to my clients requiring fluid swivels." Principal Engineer
  • High Pressure Flexible Hoses Testimonial
    "I highly appreciate DSTI for their level of quality when it comes to documentation, quality control and customer service. This is well above industry standard and provides a good fundamental for the reliability and quality of their products." Senior Project Engineer

Technical Specifications

Working Pressures
Up To 20,000+ PSI
Bore Sizes Ranging
From 2" to 8"+
Compliant with
ABS & DNV GL Certification
Designed & Qualified to
API 6A, 16C & 17D
DSTI's Offshore Oil & Gas Fluid Swivel Joints & Rotary Joints for High Pressure Hoses
  • Long Service Life Between Maintenance Intervals
  • Designed For Sour Service In Accordance With NACE MR0175
  • Redundant Sealing System Provides Maximum Uptime
  • Inspection Ports Between Primary & Secondary Dynamic Seals for Early Indication of Potential Failures
  • Internal Locking Mechanism Improves Safety By Eliminating the Possibility of the Shaft Separating From the Housings
  • Robust, Marine Grade Plain Bearings Ensure Consistent Performance Under All Operational Loads
  • Exclusive, Low-Torque Design at Full Working Pressure
  • Preventative Maintenance & Rebuild Manual Provided

Moon Pool Swivels

Hose Type Part # Bore Size Pressure Rating End Connection End Connection Type Part Downloads Information
Choke / Kill HPI-11540-FX1505 3-1/16" 15 KSI [103.4 MPa] Flange API 6A, TYPE 6BX, 3-1/16" 15K, BX154 Get Quote
Choke / Kill HPI-11540-HX1504 3-1/16" 15 KSI [103.4 MPa] Hub API 16A, TYPE 16BX, 3-1/16” 15K, BX154, NO. 6 CLAMP Get Quote
Hydraulic HPI-09210-FX0502 2-1/16" 5 KSI [34.5 MPa] Flange API 17D, TYPE 17SS, 2-1/16” 5K, BX152 Get Quote
Hydraulic HPI-09210-HX0502 2-1/16" 5 KSI [34.5 MPa] Hub API 16A, TYPE 16BX 2-1/16” 5K, BX152, NO. 1 CLAMP Get Quote
Hydraulic HPI-11410-FX1004 3-1/16" 10 KSI [68.9 MPa] Flange API 6A, TYPE 6BX 3-1/16” 10K, BX154 Get Quote
Hydraulic HPI-11411-HX1003 3-1/16" 10 KSI [68.9 MPa] Hub API 16A, TYPE 16BX 2-9/16” 10K, BX153, NO. 4 CLAMP Get Quote
Mud / Boost HPI-11220-FX0505 3-1/8" 5 KSI [34.5 MPa] Flange API 17D, TYPE 17SS 3-1/8” 5K, BX154 Get Quote
Mud / Boost HPI-11220-HX0505 3-1/8" 5 KSI [34.5 MPa] Hub API 16A, TYPE 16BX 3-1/8” 5K, BX154, NO. 4 CLAMP Get Quote
Mud / Boost HPI-13320-FX1006 4-1/16" 7.5 KSI [51.7 MPa] Flange API 6A, TYPE 6BX 4-1/16” 10K, BX155 Get Quote
Mud / Boost HPI-13320-HX1006 4-1/16" 7.5 KSI [51.7 MPa] Hub API 16A, TYPE 16BX 4-1/16” 10K, BX155, NO. 6 CLAMP Get Quote

Managed Pressure Drilling (MPD) Swivels

Hose Type Part # Bore Size Pressure Rating End Connection End Connection Type Part Downloads Information
MPD HPI-0903-GR1123 2" 5 KSI [34.5 MPa] Hub Grayloc 3GR23 Get Quote
MPD HPI-0903-HX1002 2-1/16" 5 KSI [34.5 MPa] Hub API 16A, TYPE 16BX 2-1/16” 10K, BX152, NO. 2 CLAMP Get Quote
MPD HPI-1503-GR1562 6" 5 KSI [34.5 MPa] Hub Grayloc 6GR62 Get Quote
MPD HPI-1503-HX0508 6" 5 KSI [34.5 MPa] Hub API 16A, TYPE 16BX 7-1/16” 5K, BX156, NO. 8 CLAMP Get Quote

Direct Acting Tensioner (DAT) Swivels

Hose Type Part # Bore Size Pressure Rating End Connection End Connection Type Part Downloads Information
DAT HPI-16210-S01 8" 5 KSI [34.5 MPa] Flange 8" ISO 6164 GS Hydro Get Quote

Photos

High Pressure Drape Hose Swivels

Video

See How Our HPI Swivel Technology Works

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