AlienFrac manufactures API 7K rotary drilling and vibrator hose for high-pressure mud circulation on land and offshore rigs. A rotary drilling hose connects the standpipe to the swivel or top drive. A vibrator hose is installed between the mud pump discharge line and the standpipe, where it absorbs movement, pressure pulsation and minor misalignment.
Depending on the model, the range covers 2–6 inch IDs, Grade D 5,000 psi and Grade E 7,500 psi pressure classes, built-in or crimped construction, and full-flow synthetic-rubber or UHMW-lined tubes. Send the operating pressure, hose ID, overall length, medium, temperature, bend-radius limits, end connections and required documents so the assembly can be checked against the actual rig layout.
Send your hose ID, working pressure, length, service medium, temperature range, minimum bend radius, end connection, quantity and required certificates. AlienFrac will review the specification and respond with a practical hose recommendation and quotation.
| Specification | Details |
|---|---|
| Standard | API Spec 7K |
| Approval | ABS approval shown on applicable product pages |
| Application | Rotary line between the standpipe and top drive or swivel; vibrator line between the mud pump and standpipe |
| Inside Diameter | 2–6 in., depending on model |
| Working Pressure | Grade D: 5,000 psi; Grade E: 7,500 psi |
| Temperature Range | -20°C to +121°C (-4°F to +250°F) |
| Temperature Classes | Range I, Range II and Range III |
| Flexible Specification Level | FSL 1 or FSL 2 |
| Tube | Full-flow synthetic rubber, or UHMW lining with synthetic rubber |
| Built-in Model Reinforcement | High-strength steel cable |
| Crimped Model Reinforcement | Multiple layers of high-tensile spiral steel wire |
| End Connections | Hammer union, API flange, hub connection or project-specific fitting |
| Maximum Length | Built-in models: up to 61 m |
| Available Construction | Built-in or crimped, depending on model and project requirements |
Crimped API 7K rotary and vibrator hose with a full-flow synthetic-rubber tube and multiple layers of high-tensile spiral steel-wire reinforcement. It is intended for high-pressure mud service where a crimped assembly is specified. Confirm pressure class, size, length, end fittings, bend radius and documentation before quotation.
Built-in rotary and vibrator hose with a full-flow UHMW and synthetic-rubber lining, supported by high-strength steel-cable reinforcement. The product-page range includes Grade D and Grade E configurations from 2 to 6 inches. Select this option when the project requires UHMW lining together with built-in construction, subject to fluid-compatibility review.
Crimped rotary and vibrator hose with a full-flow UHMW and synthetic-rubber lining and multi-layer high-tensile spiral-wire reinforcement. It gives procurement teams a UHMW-lined option for projects that require crimped construction. Confirm the operating medium, temperature, pressure, routing and end connections before release to production.
Kelly hose is the flexible high-pressure connection between the standpipe and swivel or top drive. In many buying specifications, “Kelly hose,” “rotary hose” and “rotary drilling hose” refer to the same service position. Provide the pressure, ID, length, fluid, temperature, minimum bend radius and end fittings so the correct assembly can be quoted.
Use a rotary hose between the standpipe and swivel or top drive. Use a vibrator hose between the mud pump discharge line and standpipe when the main requirement is to isolate pump vibration and pressure pulsation. The hose construction may be similar, but the installation position, movement and routing data must be confirmed separately.
AlienFrac offers built-in models reinforced with high-strength steel cable and crimped models reinforced with multiple layers of high-tensile spiral steel wire. The correct choice depends on pressure class, required length, end connection, routing, bend radius, documentation and the customer’s approved specification. Use the built-in-versus-crimped guide as supporting information, then confirm the final assembly with engineering data.
Standard full-flow synthetic-rubber tubes cover many drilling-mud applications. UHMW-lined models add another liner option for buyers dealing with abrasive service or project specifications that call for UHMW. Fluid chemistry, solids content, temperature and cleaning practice still need to be reviewed before selection. For H2S exposure, specify the sour-service requirement and required material standard in the RFQ.
• Standpipe to swivel or top-drive connection for high-pressure drilling mud circulation
• Mud-pump discharge manifold to standpipe connection for vibration and pulsation isolation
• Kelly/rotary line assemblies on land rigs, offshore rigs and workover units
• Water-based or oil-based drilling-fluid transfer, subject to liner compatibility
• Project-specific flexible connections where rigid piping cannot accommodate movement or alignment
1. Hose service: rotary, vibrator, Kelly/mud line or other
2. Working pressure and any required test pressure
3. Hose ID and overall assembly length
4. Fluid medium, including water-based mud, oil-based mud or additives
5. Minimum and maximum operating temperature
6. End connections, size, pressure class and orientation
7. Minimum bend radius, routing and movement on the rig
8. Quantity, delivery country and target date
9. Required FSL level, third-party witness, certificates and test records
10. Photos/nameplate data when replacing an existing hose
• Compliant with API Spec 7K and ABS requirements, with FSL 1/2 options and an operating temperature range of -20°C to +121°C.
• Built-in and crimped constructions cover different project specifications
• Standard synthetic-rubber and UHMW-lined product families are available
• Grade D 5,000 psi and Grade E 7,500 psi built-in configurations are published in 2–6 inch IDs
• Project-specific hammer unions, API flanges, hubs and other fittings can be reviewed
• Certification, inspection and test-document requirements can be included in the RFQ
A rotary drilling hose normally connects the standpipe to the swivel or top drive and moves with the drilling equipment. A vibrator hose normally connects the mud pump discharge line to the standpipe and isolates pump vibration and pressure pulsation.
The terms are often used for the flexible high-pressure hose between the standpipe and swivel or top drive. Always verify the installation position and specification because terminology varies among rigs, contractors and regions.
Published built-in model data includes Grade D 5,000 psi and Grade E 7,500 psi working-pressure configurations. The available size/pressure combination must be confirmed for the selected construction, liner, length and end connection.
The published built-in model tables cover 2, 2½, 3, 3½, 4, 5 and 6 inch IDs. Confirm availability for the exact pressure class and assembly design before ordering.
Common project options include hammer unions, API flanges, hub connections and customized fittings. Provide the mating-equipment details, connection size, pressure class and orientation for review.
Consider a UHMW-lined model when the approved project specification calls for UHMW or when abrasive-service conditions justify reviewing an alternative liner. Final selection must still consider fluid chemistry, solids, temperature, cleaning and compatibility.
Send the service position, working pressure, hose ID, length, fluid, temperature, bend radius, end connections, quantity, delivery location and required FSL/certification/test documents. Photos and nameplate information are useful for replacement hoses.
