API 685 PDF
Canned motor pumps in compliance with API –. A contribution to environmental protection. Dr. G. Feldle. HERMETIC-Pumpen GmbH · D API () covers sealless centrifugal pumps for petroleum, heavy-duty chemical, and gas industry services. API recommends the use of API () for. Pump and motor generally in accordance with API standard, latest edition. Design Pressure. 50 bar design pressure for pump and motor, hydraulic test.
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world-leading technology world-leading company. KONTRO. API HMD/ Kontro have been building Magnetic. Drive pump units to API codes since Home; API Std Preview Secure PDF. ℹ Add to Cart. Printed Edition + PDF;; Immediate download; $; Add to Cart. Sealless magnetic drive centrifugal pumps that meet API and API standards. No seals that leak make it safe and reliable. Perfect pumps for difficult to.
The pumps are designed for satisfactory performance if they are subject to the forces and moments in table 4 of the standard.
Fully jacketed volute casings are available as an option. Pumps can be heated or cooled with water, steam or oil. Flanged connections for heating fluid are standard.
Pumps with jacketed casings may be required if the melting or cristallization temperature of the pumped fluid is higher than the pump's ambient temperature. Impeller The standard pump impellers are closed, manufactured of single-piece castings with solid hubs. The impellers are keyed to the shaft and secured by a cap screw with Heli-Coil insert. The impeller thrust loads are hydraulically balanced by wear rings and balancing holes to the suction side.
Special care was taken when designing the impeller eye to achieve low NPSH-values. The impellers are properly statically and dynamically balanced according to paragraph 5.
Wear rings Renewable wear rings are provided at volute casing, intermediate casing and impeller. The wear rings are held in place by screws. Running clearances meet the requirements of paragraph 5.
Mating surfaces of the hardened materials have a difference in Brinell hardness of at least 50 HB. Contrary to former inducer designs, this inducer offers NPSH-improvement from minimum flow to maximum flow.
Retrofit of inducers on site is possible without change of suction pipe. Transportation of high-temperature liquid is possible by attaching a jacket to the outer wall of the stator assembly to cool the motor depending on the temperature and property of the pumped liquid.
High viscosity type V Type The basic structure is the same as that of the basic type, but the return passage is wider to maintain the return flow of the liquid. High-temperature type with cooling T Type This type of construction is designed to handle high-temperature liquid. The pump and motor are connected by an adapter. The adapter is constricted in the middle to separate the motor from the pump thermally by reducing the heat transfer to the motor.
In the high-temperature type, circulation to cool the motor and lubricate the bearings is performed by the auxiliary impeller installed at the front of the rotor chamber independent from the main pump. A heat exchanger is provided to cool the motor and circulation liquid at the midpoint of the circulation tube. High-temperature liquid handling type without cooling X, Y Type These types of construction are designed to handle high-temperature liquid without using any cooling water by utilizing special insulation materials.
Requiring no cooling water, these pump types negate the need for cooling water piping. This frees operators from dealing with clogging and other problems, thereby reducing the costs including maintenance.
The pump is suited to heating liquids and transporting high-melting liquids that easily solidify. Slurry handling type S, M, G Type S Type The basic construction is identical to that of the Type HT High Temperature Pump The motor for this pump has a design that prevents the entry of solids into the rotor chamber by injecting back flushing clean liquid or cleaning solution that is allowed to be mixed into the pumped liquid from the inlet connection provided at the rear of the motor.
A back flushing line must be used with this pump. M Type To reduce the amount of back flush fluid leakage into the process liquid, the slurry handling type with mechanical seal between the pump and motor M Type is available.
G Type The gas seal type G Type is also available, suitable for handling highly corrosive liquids, liquids prone to polymerization and highly-concentrated slurry liquids.
The pump basically has the same construction as that of the slurry handling type pump with mechanical seal, and it features a gas chamber between the pump and motor.
The pump is completely separated from the motor by a gas chamber, which ends concern over wear and corrosion of the mechanical seal caused by the pumped liquid and ensures a long service life.
Air or N2 gas is used as filler gas in the gas chamber gas seal chamber. High melting point type B, C Type This pump has a construction suitable for handling liquid with a high solidifying melting point.
This pump is provided with a heating jacket on the outer surface of the pump and the motor to prevent liquid from solidifying during liquid filling and during the pump operation.Look Inside. Elevator World Inc.
GSPLF Magnetic Drive Pumps Low Flow API 685-2nd Edition
This pump can maintain higher pressure than the vapor pressure in the motor chamber, thereby preventing evaporation. Key Products, Inc.
Improved magnet drive technology has enabled more efficient and powerful pumps to be built, thus increasing the application scope for this technology. AWS D1.
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