Zenith^® B-9000 Series Gear Metering Pumps

[Description]  [Benefits]  [Applications]  [Specifications]  [Exploded View]  [Dimensions]  [System Dimensions Chart]

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Zenith's B-9000 Series precision metering pumps utilize rotary, external spur gears which dispense an exact volume of  fluid per shaft revolution (cc/rev).  Precision ground and lapped construction and alignment dowels allow for close control of operating clearances. This ensures precise, pulseless, and repeatable flow under varying process conditions.  Integrated closed loop speed control and a compact motor driver system maintain set point speeds to .01% and also accept automated interfaces. 

The B-9000 Series is constructed of 440C stainless steel which provides excellent wear resistance (hardness 54 Rc) and corrosion resistance for most chemical processes. The pump offers increased uptime while minimizing maintenance due to its simple design of only three moving parts.

The B-9000 Series is a new generation of Zenith’s traditional B-Series metering pump. While maintaining precise flow characteristics, its optimum gear design reduces bearing loads, extending speed capability. The pump allows direct piping and shaft engagement. A single mechanical shaft seal eliminates sealing concerns. The pump complies with European Community and DIN standards.

For years, engineers have relied on Zenith to provide precision fluid handling solutions for their most difficult pumping applications. Zenith gear pumps can be found wherever precise, pulseless, and repeatable metering of fluids is required.

Benefits 

• High Accuracy - Stable, repeatable flows are assured even under varying conditions of temperature, viscosity, and pressure.
• Minimum Pulsation - Unique design offers virtually pulseless flow without valves or flexible elements to hinder performance.
• Low Cost of Ownership - With only three moving parts and 400 series stainless steel construction, the pump provides corrosion resistance for most chemical processes, and it is through hardened to 54 R c or better for maximum life.
• Precision Construction - Ground and lapped components allow for operating clearances to .00015" and provide high volumetric efficiency.
• Active Flowmeter Concept - Unparalleled mechanical precision, combined with the closed loop set point accuracy, ensures an exact volume per revolution without expensive flow meters.
• Experience - Zenith has over 75 years of application experience with engineers available 24 hours a day to support your precision fluid metering needs.

Applications

The B-9000 Series pumps are ideal for metering in such applications as:
Dyes	Water Treatments	Cosmetics	Inks	Coatings
Perfumes	Viscose	Fuels	Urethanes	Lubricants
Adhesives	Flavorings	Resins	Catalysts	Pharmaceuticals
Polymers	Paints / Varnishes	Oils	Vitamins	Detergents
Emulsions	Defoamers	Inhibitors	Additives	Many others

Selection

Varying conditions of flow rate, pressure, and viscosity may require selection assistance from an authorized representative or the factory for successful operation.

Specifications

Other pump and system options are available. Please consult factory or your local representative.

Standard Pump Head:

• Type: Precision ground rotary external spur gear.
• Pump Speeds: .3-30cc 300 rpm maximum 45-90cc 200 rpm maximum.
• Inlet Pressure: 300 psi (20 Bar) maximum.
• Outlet Pressure: 1000 psi (70 Bar) maximum.
• Temperature: 300°F (150°C) maximum.
• Seal: Single mechanical seal 316SS construction, carbon vs. ceramic seats with Viton elastomers.
• Required Torque:

Torque (in-lb) = (K₁ DP) + (K₂ N µ/100,000)
Torque (nm) = (K₃ DP) + (K₄ N µ/100,000)

K₁ = Constant from chart
N = Pump speed (rpm)
DP = Differential pressure (psi)
K₂ = Constant from chart
µ = Viscosity (cP)
K₃ = Constant from chart
K₄ = Constant from chart

Capacity cc/rev	K1 / K2	K3 / K4	Max. Torque (in-lbs/NM)
.3	.003/2.9	,0048/,328	90/10
.6	.006/3.0	,0095/,339	350/40
1.2	.012/3.1	,020/,350	350/40
2.4	.024/3.3	,038/,373	350/40
4.5	.045/10.0	,072/1,13	880/100
9	.09/12.0	,14/1,36	880/100
15	.15/24.0	,25/2,71	1100/125
30	.30/31.0	,48/3,50	1100/125
45	.45/60.0	,72/6,78	2400/275
90	.90/77.0	1,44/8,70	2400/275

Standard Motor Driver Assembly:

• Variable Speed 1/4 to 3 hp, DC motor, C-face flange mount, 1800 rpm maximum, totally enclosed.
• Magnetic pickup with 25 feet (7.6m) of sensor cable
• Inline 6, 11, and 21 to 1 speed reducers, C-face.
• Low speed-flexible coupling, rigid baseplate, and coupling guard.

Standard System Speed Controller:

• Accuracy: Zero accumulative error—follower format; .01% set speed—master format with 10 millisecond control loop update.
• Power Requirements:
  
  1/4 - 1/2hp = 115 VAC, 1 PH
  1 - 3hp = 230 VAC, 1 PH
  -10% + 15% VAC, 50/60 Hz
  
• Enclosure: NEMA 12 wall mount; 12" x 10" x 8" (304.8 x 254 x 203.2mm) cabinet with four mounting holes or chassis mount; 1/2 DIN.
• Engineering Units: Programmable display and setpoint values for various units.
• Computer Interface: Local or remote control, programming or monitoring with optional input and output capabilities.