Máy bơm thân tách hai đầu hút một cấp dành cho dầu thô, xăng và dầu diesel | Nhà sản xuất theo tiêu chuẩn API 610 BB1

When your operation requires a single stage double suction split case pump for crude oil, gasoline and diesel oil, choosing the right manufacturer is critical. Hunan Durafort Pumps Co., Ltd. stands as one of the leading pump manufacturers in Hunan Province and across South China.

With over 300 employees and an annual production capacity exceeding 20,000 pump units, Durafort Pumps delivers industrial-grade reliability. The company manufactures a comprehensive range including máy bơm hai buồng, vertical turbine pumps, vertical mixed flow pumps, vertical axial flow pumps, and centrifugal pumps. Material options cover cast iron (HT250), carbon steel, 304, 316L, SS2205, SS2507, 904L, CD4MCu, and more.

Among these, the XSP Series Single Stage Double Suction Split Case Pump represents the pinnacle of Durafort’s engineering for hydrocarbon transfer applications.

Product Overview: XSP Series API610 Split Case Pump

The XSP series is a horizontal split case pipeline centrifugal pump designed specifically for oil transportation. Developed leveraging advanced aerospace liquid technology and combining both domestic and international best practices, this pump is manufactured in full compliance with API610-2004 (10th Edition) standards for petroleum, heavy chemical, and natural gas industry centrifugal pumps.

The XSP is primarily suitable for transporting crude oil, gasoline, diesel oil, and other petroleum products at temperatures not exceeding 100°C, as well as other non-corrosive, solids-free media.

Key Applications: Where the XSP Excels

The double-suction hydraulic design delivers flow rates up to 38,000 m³/h, making this pump ideal for demanding hydrocarbon transfer scenarios:

1. Long-Distance Crude Oil & Product Pipelines

• Scenarios: Pipeline head stations, intermediate booster stations, terminal stations — both ambient temperature and heated (crude oil, gasoline, diesel, jet fuel).
• Advantages: The double-suction structure provides thousands of m³/h flow with moderate head (typically 50-150 meters), ideal for pipeline boosting. The horizontal split case design allows online maintenance, reducing pipeline shutdown losses.

2. Refineries & Petrochemical Plants

• Ứng dụng:
  • Feedstock transfer: From crude oil tank farms to atmospheric/vacuum distillation units.
  • Intermediate & finished product transfer: Catalytic cracked slurry, hydrotreated naphtha, finished gasoline/diesel within the plant.
  • Hot oil circulation: Forced circulation of high-temperature media (up to 200-300°C with upgraded materials).
• Note: Depending on media temperature and corrosivity, flow path components can be upgraded to heat-resistant steel or sulfur-resistant steel, with seals selected as high-temperature mechanical seals or metal bellows seals.

3. Oil Depots & Terminal Loading/Unloading

• Scenarios:
  • Receiving: Unloading from oil tankers to shore storage tanks (requires high-volume, rapid operation).
  • Dispatching: Loading from storage tanks into tank trucks, railcars, or small vessels.
  • Tank transfer: Inter-tank oil transfer or tank cleaning operations.
• Advantages: Smooth, stable operation suitable for intermittent duty. Some models are reversible for use as unloading pumps.

4. Oilfield Gathering Systems

• Scenarios: Wellhead flow line collection → transfer stations → central processing facilities for oil-gas mixed transport (with small volumes of associated gas and water) or treated oil export.
• Selection note: For high gas-liquid ratios, specialized designs (open impeller, pressurized seals) are required.

5. Aviation Fuel & Specialty Chemical Transfer

• Scenarios: Airport fuel hydrant systems for jet fuel; transfer of benzene, toluene, xylene, alcohols, and other flammable/explosive chemicals.
• Safety requirements: Explosion-proof motors, anti-static seals, and non-sparking materials (e.g., copper impeller anti-spark rings).

6. Standby & Fire Protection Systems

• Scenarios: Emergency oil transfer pumps or foam concentrate pumps (with foam proportioning systems) at petrochemical facilities.
• Features: Diesel engine drive option ensures operation during power outages.

Performance Specifications (XSP Series)

Key Features of the XSP Series

API610 BB1 / BB3 Construction

The XSP follows API610 10th Edition BB1 (axially split, foot-mounted single-stage double-suction pump) or BB3 design. The suction and discharge nozzles are located on the same casing (lower casing half) and arranged horizontally on both sides. When opening the cover for maintenance, there is no need to remove piping — significantly simplifying repair work.

Explosion-Proof Design (Zone 2, T4)

Every component — from pump structural parts, motor, coupling, auxiliary piping, instruments to the skid base — features explosion-proof design for use in Zone 2, Group T4 hazardous areas:

• Materials comply with API610 Appendix H, Table S-6 for flammable/explosive media.
• Motor: Flameproof/non-sparking, Exd II BT4 / Exn II BT4, IP55, Class F insulation.
• Coupling guard: 316L stainless steel.
• Skid base: Fabricated steel.
• Grounding wires on motor and base; static bonding across flanges.
• All electrical instruments: Exd II BT4 or higher; cables routed through explosion-proof flexible conduits.

High Reliability & Low Vibration

• Axial force: Self-balanced by the double-suction impeller and optimized impeller distribution, reducing thrust bearing load.
• Radial force: Minimized through special volute flow path design and optimal stage layout.
• Result: Lower bearing temperatures, reduced oil temperatures, better lubrication/cooling — longer bearing life.
• Balancing: All rotating components balanced to G2.5 grade.
• Vibration modal analysis: Avoids resonance between casing, rotor, and base — stable operation with low noise.

Key Design Highlights (API610 BB1 Type)

• A. Horizontal split case: Maintenance by removing top cover only — no piping disconnection.
• B. No shaft sleeve: Impeller secured with retaining ring.
• C. Cartridge mechanical seal: Simple replacement.
• D. Wear rings on both impeller and casing: Extends component life.
• E. Long coupling length: Allows mechanical seal and bearing replacement without moving pump or motor.
• F. High cavitation performance (low NPSHr).

Construction Details

• Orientation: Horizontal mounting with suction and discharge nozzles below the pump shaft centerline.
• Rotation direction (viewed from motor end): Counterclockwise (suction left, discharge right) or clockwise (suction right, discharge left) depending on configuration.
• Sealing: Soft packing as standard; mechanical seal optional.
• Complete package: Supplied with pump, motor, baseplate, coupling, and inlet/outlet stub pipes.

Installation, Startup & Operation Guidelines

Installation

1. Foundation: Place pump on concrete foundation with anchor bolts. Adjust horizontal using wedge blocks.
2. Grouting: Pour concrete between foundation and pump feet; allow to cure; retighten anchor bolts; recheck level.
3. Alignment: Correct motor-to-pump shaft concentricity (0.1mm runout tolerance; 0.3mm face gap variation).
4. Piping: Support suction/discharge piping independently — do not let pipes bear on pump casing.
5. Leak-proof suction line: Ensure no air pockets or leaks on the suction side.
6. Priming: For installations above water level, install a foot valve or use vacuum priming.

Startup Procedure

1. Rotate rotor by hand — should feel smooth.
2. Close discharge valve. Fill pump casing completely (no air pockets).
3. Start motor; gradually open discharge valve to regulate flow.
4. Adjust packing gland for slight leakage (drops) with moderate temperature rise.

Operation

• Maximum bearing temperature: 75°C.
• Grease quantity: 1/3 to 1/2 of bearing housing volume (calcium-based grease).
• Speed variation: Pump speed may be reduced (not increased). Use affinity laws:
  • Q₁ = (n₁/n) × Q
  • H₁ = (n₁/n)² × H
  • P₁ = (n₁/n)³ × P

Shutdown & Storage

• Close vacuum/pressure gauge valves, then discharge valve, then stop motor.
• In freezing conditions: Drain casing via bottom plug to prevent cracking.
• Long-term storage: Disassemble, dry components, apply rust-preventive oil to machined surfaces.

Material Selection Guide

Why Hunan Durafort Pumps?

• Manufacturing scale: 300+ employees, 20,000+ pumps annually.
• Product breadth: Split case, vertical turbine, mixed flow, axial flow, centrifugal pumps.
• Material expertise: Wide range from cast iron to super duplex and CD4MCu.
• Quality foundation: API610 compliant design with aerospace technology heritage.
• Location: Leading pump manufacturer in Hunan Province and South China.

When your pipeline, refinery, or terminal requires a single stage double suction split case pump for crude oil, gasoline and diesel oil, the XSP series from Hunan Durafort Pumps delivers API610-compliant performance, explosion-proof safety, and field-proven reliability.

With flow capabilities up to 38,000 m³/h, horizontal split-case maintenance access, and materials ranging from cast iron to super duplex stainless steel, the XSP is engineered for the toughest hydrocarbon transfer challenges.

Hãy liên hệ với Hunan Durafort Pumps ngay hôm nay with your flow (m³/h), head (meters), media type, and temperature to receive a customized pump selection and quotation.