Botou Special Pump & Valve Manufacturing Co., Ltd.

The published company name is 泊头市特种泵阀制造有限公司, with an address on Nancang Street in Botou. Its wider catalogue also includes KCB, residual-oil, jacketed bitumen and screw-pump directions. Keep the quoted manufacturer and full model explicit: another pump maker in the same city or a familiar series code does not establish the same supplier, construction or performance.

The YHCB page describes a double-circular-arc gear pump for tanker and other mobile oil-transfer equipment. It offers a vehicle power-take-off drive or an electric-motor arrangement, with mechanical or packing seals and alternative gear materials. The existing YHCB listing is a family description; the reviewed page does not give a model-by-model capacity and speed table, so do not size the truck package from the family label alone.

The documented liquid envelope is clean, non-corrosive oil without solids, 5–1,500 cSt and no more than 80°C. The page mentions gasoline, kerosene, diesel and lubricating oil, with copper-gear options for low-flash-point service. For flammable liquid, request approval of the complete pump, seals, drive and operating arrangement for the fuel and required jurisdiction; a gear-material option is not a complete hazardous-service approval.

The manufacturer describes reversible operation, with inlet and outlet roles determined by rotation. Confirm port mapping and the compatible protection arrangement for each required direction. An unloading circuit with filters, non-return valves or directional valves must support that mode rather than assuming that reversing the drive reverses the whole system safely.

Botou Special gives an installation angle of no more than 7° between the pump and drive shafts and a vertical suction-pipe limit of 5 m. Treat those as catalogue layout statements, not proof of acceptable driveline vibration or a guaranteed five-metre lift for every oil, hose and speed. Submit the actual shaft offsets and angles, suction length/diameter, fittings, filter and lowest tank level for approval.

PTO speed is not automatically engine speed. Original PTO-manufacturer guidance relates output speed to the transmission and PTO ratio, and requires the output rotation to match the driven component. Agree the engine operating range, actual PTO ratio, pump speed range, torque and rotation viewed from a stated end. The PTO supplier should verify the transmission interface and installation; no third-party PTO compatibility is established by this pump profile.

1. Freeze the vehicle interfaces

   Provide transmission and PTO identifiers, output flange/spline, mounting space, shaft supports and a drawing with viewing directions.

2. Check the liquid path

   Define tank levels, hoses, inlet filter pressure loss, loading/unloading modes and where any bypass returns. Request the approved suction conditions at cold-start viscosity.

3. Agree commissioning and maintenance

   Obtain the startup ramp, valve positions, allowed speed/torque, protection settings and maintenance schedule for the supplied arrangement. The official YHCB instructions call for open valves at startup and gradual speed increase.

The TB product page describes a five-piece gear-pump construction, alloy gears, thrust plates and an internal return valve for burner-feed duties. It distinguishes an ordinary construction from a jacketed option heated by steam or thermal oil. For heavy fuel that thickens or sets on cooling, send the cold viscosity and required preheat conditions; do not start against solidified material.

The detailed page specifies lubricating fuel without hard metal particles or long fibres, 5–1,500 mm²/s, and excludes strongly corrosive or readily volatile low-flash-point service. The company overview separately mentions alcohol-based fuel. Those passages do not establish a general alcohol-fuel approval. Supply the full fuel composition and request written compatibility of metals, seals and lubricity before using this direction for a blended or alternative fuel.

The internal return valve is described as short-term overload protection, not continuous pressure regulation. A burner circuit may need a separate pressure-control and return arrangement. Ask for the required feed pressure, allowed variation, control method, low/high-pressure protection and return destination; no numerical TB capacity or pressure rating should be inferred from a claim of stable burner supply.

Submit through KanBeng’s enquiry form with this factory named in your request.

LYB places the gear-pump head below the liquid and the motor above it, with a long transmission shaft and tank-cover mounting. The company describes adjustable shaft-length arrangements and material lubrication by the pumped liquid. Give the immersion requirement as a drawing, including minimum and maximum levels, rather than ordering only a nominal shaft length.

The documented direction is lubricating liquid without strong corrosion, hard particles or long fibres; the page excludes heavily contaminated and readily volatile media. Submergence can simplify taking liquid from the tank, but it does not remove all suction, low-level or bearing conditions. Ask for minimum submergence, inlet-screen requirements, support loads, allowable shaft arrangement and dry-running protection.

The webpage describes seal access without lifting the complete pump. Confirm the service drawing for the supplied immersion length, the clearance needed to remove the shaft/pump head and the parts that can actually be serviced in place. This turns a general maintenance claim into a usable tank-layout decision.

RYB is described as an internal-gear positive-displacement pump with inner and outer rotors differing by one tooth, positioned eccentrically without a crescent divider. The catalogue names clean mechanical oil, turbine oil and diesel, excludes hard particles and gives a temperature ceiling of 120°C.

The page lists a family flow range of 10–160 L/min, 0.6 MPa working pressure, 1,500 r/min and motors from 0.75 to 4.0 kW. It does not provide a complete row tying every motor to a specific capacity. Request the exact selected model and curve. Its accompanying cubic-metre conversion is inconsistent at the lower end, so use the stated L/min range and a confirmed selection sheet rather than repeating both numbers.

For a lubrication circuit, agree inlet filtration and its cold-oil pressure loss, permitted pressure variation, return path and the relief setting. The official RYB instructions also distinguish overload protection from long-term pressure reduction. Claims of a one-to-two-times life increase over ordinary gears have no comparable test conditions here and should not determine the maintenance or spare-parts plan.

Request performance and protection checks for the exact assembly, including the stated test liquid, speed, suction and discharge conditions. For a mobile unit, add an approved interface drawing; for a heated unit, add jacket and seal ratings; for LYB, add the immersion and servicing drawing. Current certificates, if required by the order, must identify their holder, scope, issuer and validity.

Reviewed on 8 October 2026 from the company, YHCB, TB, LYB and RYB pages. PTO speed/rotation context was checked against original PTO-manufacturer documentation. Installation and enquiry guidance is procurement analysis; it is not a vehicle approval, witnessed factory inspection or completed pump test.

Submit through KanBeng’s enquiry form with this factory named in your request.

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