TP pumps E-circulators VersaFlo ® TPE

1 TP pumps E-circulators VersaFlo TPE. Materials TP, TPE. TM03 4875 3206. TM 00 9274 2002. Fig. 4 TP Series pumps Fig. 5 Sectional drawing of a single-phase TP pump Technical data Material specification Flow rate:up to 300 gpm Head:up to 65 ft AISI, Pos. Component Material ASTM. Liquid temperature 13 to +284 F. EN-JL 1040. Max. operating pressure:up to 145 psi Cast iron , 1 Pump housing ASTM 48. CL 30. Note: See Grundfos product guide L-TP-PG-001 for 2 Impeller Stainless steel 304. performance range. 3 Shaft Stainless steel 431. 4 Coupling Cast iron Construction EN-JL 1040. Cast iron , 5 Pump head ASTM 48. Grundfos TP pumps are single-stage, close-coupled CL 30. pumps with in-line suction and discharge ports flanges ASTM 48. Secondary seals EPDM. of identical diameter. CL30. Rotating seal The pumps are equipped with a fan-cooled asynchro- face Tungsten carbide nous motor.

2 Motor and pump shafts are connected via Carbon (synthetic resin- a rigid two-part coupling. Stationary seat impregnated). tungsten carbide The pumps are equipped with an unbalanced mechan- ical shaft seal. The pumps are of the top-pull-out design, the power head (motor, pump head and impeller) can be removed for maintenance or service while the pump housing remains in the pipework. As radial and axial forces are absorbed by the fixed bearing in the motor drive-end, the pump requires no bearing. pumps with bronze pump housing are suitable for circu- lation of domestic hot water. 17. TP pumps E-circulators VersaFlo TPE. Mechanical shaft seal Control Three types of unbalanced mechanical shaft seal are Electronically controlled TPE, pumps are suitable for available as standard: demand-dependent performance control.

3 BUBE TPE pumps have the following features and bene- The BUBE shaft seal is a Grundfos rubber bellows fits: seal with tungsten carbide/carbon seal faces and secondary seals of EPDM.(Standard seal) Optimised hydraulics for high efficiency RUUE - reduced power consumption. The RUUE shaft seal is a Grundfos O-ring seal with TPE pumps with built-in frequency converter reduced tungsten carbide/tungsten carbide seal - 2-pole and 4-pole TP pumps from to HP. faces and secondary seals of EPDM. single phase are available as TPE pumps with AUUE. built-in frequency converter. For further informa- The AUUE shaft seal is a Grundfos O-ring seal with tion, see page 26. fixed seal driver, tungsten carbide/tungsten carbide seal faces and secondary seals of EPDM. Top-pull-out design Information on a selection of common pumped liquids - easy dismantling in case of service.

4 With recommended shaft seals is shown on page 16. In-line design - contrary to end-suction pumps , in-line pumps Shaft seal specification allow a straight pipework and thus often reduced version NU according to EN. installation costs. Unbalanced shaft seal TPE. 12756 Pump housing and pump head are electrocoated Shaft diameter 12 and 16 mm - high corrosion resistance. Rubber bellows EPDM. Tungsten carbide/carbon Electrocoating includes: Tungsten carbide/. Seal faces tungsten carbide 1. Alkaline cleaning Silicon carbide/ 2. Pre-treatment with zinc phosphate coating silicon carbide 3. Cathodic electrocoating (epoxy). Special shaft seals are available for partly conditioned water or other liquids containing abrasive or crystallis- 4. Curing of paint film at 200-250 C. ing particles. See page 16. For low-temperature applications at a high humid- ity, Grundfos offers TP pumps with extra surface Connections treatment to avoid corrosion.

5 These pumps are available on request. pumps up to 2 discharge has US standard flanges. 3 . Stainless steel impeller and neck ring and higher discharge flanges are 125# ANSI connec- tion. - wear-free operation with high efficiency. 18. TPE Series 2000 pumps E-circulators VersaFlo TPE. Applications TPE Series 2000 pumps have integrated speed control for automatic adaptation of performance to current con- ditions. This ensures that the energy consumption is kept at a minimum. TPE Series 2000 pumps can operate in any duty point TM03 0348 4904. within the range between 25% and 100% speed. H. [ft]. Fig. 6 TPE. 100%. Technical data Flow rate: up to 200 gpm Head: up to 60 ft Liquid temperature: 13 to +284 C. Max. operating pressure: 145 psi TM03 3609 0506. 25%. Motor sizes (single-phase): to hp 0. Construction 0 Q [US GPM].

6 TPE, Series 2000 pumps are based on TP pumps . In the QH-chart the 100%-curve corresponds to the The main differences between the TP and the TPE curve for a pump fitted with a standard fixed-speed Series 2000 pump range are the motor and the factory- motor. fitted integrated differential pressure sensor. Depending on the nature of the application, TPE Series The motor of TPE Series 2000 pumps has built-in fre- 2000 pumps offer energy-savings, increased comfort or quency converter designed to continuously regulate the improved processing. pressure based on the flow demand. TPE Series 2000 pumps are suitable for applications The TPE Series 2000 range is recognized as a pre-set where you want to control the pressure. solution for quick and safe installation. For further information on construction and materials of TPE Series 2000 pumps , see page 17.

7 19. TPE Series 2000 E-circulators VersaFlo TPE. pumps Differential proportional pressure Pump selection guidelines TPE Series 2000 pumps are factory-set to proportional pressure. We recommend proportional pressure control Differential proportional pressure control in systems with relatively large pressure losses as it is TPE 2000 pump operating range in differential pressure the most economical control mode. control mode is between 3/4th of the maximum head (shut off) to 1/4th of the maximum head. Pump shall be TPE Series 2000 pumps set to proportional pressure selected to operate within this range when pump is run- control continuously adjust the pump head to the sys- ning full load speed. With differential proportional con- tem water requirement. trol, pump will follow a straight line between set point The charts below show possible control modes of TPE and and half of the set point at closed valve as shown Series 2000 pumps in different applications.

8 Below. Control mode Application Differential proportional pressure H. Systems with two-way valves - the head against closed valve is half the 5. setpoint. 4. 3. Differential Constant pressure 2. TM03 3670 0606. Systems with two-way valves. 1. 0. Q. Constant differential pressure control Constant curve The setting range for constant pressure control is Single-pipe heating system. between maximum head to 1/8th of the maximum head. Systems with three-way valves. Heating and cooling surfaces. Chiller pumps H. 5. 4. Control options Communication with TPE Series 2000 pumps is possi- 3. ble via: 2 TM03 3671 0606. a central building management system 1. remote control (Grundfos R100) or 0. a control panel. Q. The purpose of controlling TPE Series 2000 pumps is to monitor and control the pressure. For further information on control options of TPE.

9 pumps , see page 25. 20.