Page 1: Table Of Contents
Instruction Manual the HPP-5 High Pressure Positioner Table of Contents Section Page Section Page Introduction Changing Positioner Action Description Scope of Manual Conversion to Split Range Technical Assistance Applications Assembly Procedures Separate Manual Guidelines for usage Inspection Procedures Technical Information...
Page 2: Introduction
Becker Precision Equipment, Inc. Description Attn: Technical Assistance The Becker HPP-5 positioner is used in 950 Pratt Boulevard control valve assemblies with a control- Elk Grove Village, IL 60007 USA ler or I/P transducer and double acting...
Page 3: Applications
HPP-5 Positioner Instruction Manual High Gain Systems: The HPP-5 is not Applications preferred for this application. It may be • Primary Pressure Control successfully used with small diameter • Overpressure Protection (Monitor) (4” and smaller) ball valves for this appli- •...
Page 4: Technical Information
HPP-5 Positioner Specifications Technical Specifications Materials of Construction Input Signal: Standard: 3-15 psi or 6-30 psi. Anodized 2024 Aluminum External Parts: Adjustable: Zero is adjustable from 2- 30 psig, span is adjustable from 5-24 316 Stainless Steel and 2024 Ano-...
Page 5: Principals Of Operation
HPP-5 Positioner “How-It-Works” Power Instrument- Cylinder Exhaust Signal Principles of Operation Close on Increasing Signal The positioner is a force-balanced instrument that provides a control valve posi- tion proportional to the pneumatic input signal. The control valve will open on loss of input signal.
Page 6: Open On Increasing
HPP-5 Positioner “How-It-Works” Power Instrument- Cylinder Exhaust Signal Open on increasing Signal The positioner is a force-balanced instrument that provides a control valve posi- tion proportional to the pneumatic input signal. The control valve will close on loss of input signal. The energy to operate the control valve is obtained from the differential between the supply and discharge pressures.
Page 7: Adjustment Procedure
HPP-5 Positioner Adjustment Procedures Your HPP-5 positioner will come factory 2. Adjust the adjustable orifices: adjusted for your particular application. The adjustable orifices are utilized to The use of the adjustment procedures control the volume of gas that is sup- will be necessary upon installation of a plied to the HPP-5.
Page 8: Deadband Setting
Disconnect any bug vent or tube fitting from the exhaust port. 4. Apply power gas to the HPP-5 posi- tioner Turn the deadband adjustment drum in the direction of decreasing numbers, 5. Set the instrument signal pressure until the exhaust port begins to bleed at the midpoint of its range (e.g..
Page 9: Bias Adjustment
HPP-5 Positioner Bias Adjustment Note: When increasing or decreasing Bias Adjustment the instrument signal, the output pres- For Standard (Non-split range) Sys- sure should swing up and down. When tems: changing direction of the false instru- 1. To increase the bias setting, in- ment signal, the output pressure should crease tension on the range spring.
Page 10: Range Adjustment
6-30 psi system. The limits of the range can be defined as the initial point at which the instrument signal Spring Range Stroke (Part Number) to the HPP-5 starts valve (psi) movement until the end of the valve stroke and full pressure differential across 01-6288 01-6287 01-6287 01-6801 the cylinder output gauges.
Page 11 HPP-5 Positioner Range Adjustment If the range is less than desired (i.e. the actuator reaches its full travel in less than the specified input range), strengthen the range spring by winding it counterclockwise onto the spring retainer. If the range is...
Page 12: Changing Positioner Action
(see piping schematic provided by Becker Precision Equipment) then To change open on increasing to close on reattached to the positioner. This will increasing: Part #25-1444 plus an Exten-...
Page 13: Conversion To Split Range
HPP-5 Positioner Split Range Stroke With Without 3. (Cont.) Reattach the mounting bracket upside down from its original 25-8265 25-8001 position. 25-8136 25-1093 4. Slide the thread spacer (brass bushing) over the adjusting screw 25-1402 25-1423 and tighten the washer and jam nut against the thread spacer.
Page 14 HPP-5 Positioner Maintenance and Inspection 3. (Cont.) Check the integrity of the Maintenance and Inspection balanced valve seats by increasing the dead band by 1 full number. As with all precision equipment, it is When the cylinder top and bottom...
Page 15: Inspection Procedures
Refer to technical manual included with each specific instrumentation ac- cessory for further instruction. Note: It is not necessary to replace any rubber goods in Becker instrumentation or instrumentation accessories on a regular basis. However, common practice suggests that replacement of rubber goods on a 5-year cycle basis provides adequate preventative maintenance.
Page 16: Parts Ordering
Parts List Parts Ordering The following is provided to allow the ordering of replacement parts. Please specify the Becker instrument serial number when ordering parts (this can be found on the Stainless Steel tab at- tached to the pilot by the 7/16 hex head cap screws. If the instrument was supplied as a com- plete valve regulator package, the Stainless tag attached to the actuator piston can also provide the serial number.
Page 17 HPP-5 Positioner Parts List HPP-5 September 1999...
Page 18: Open On Increasing (Parts)
HPP-5 Positioner Appendix HPP-5 September 1999...
Page 19 HPP-5 Positioner Appendix HPP-5 September 1999...

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