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OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com

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5.  Place two o-rings in the o-ring grooves on each valve stem. Screw one 

valve stem into the cell cap on the inlet side of the cell. Tighten the valve 

stem completely. To increase the life of the valve stem and cap, apply a 

thin layer of high-temperature thread lubricant (#165-44) to the conical 

face o-ring on the pointed end of the valve stem.

6.   Invert the cell body and carefully pour the sample into the cell, leaving 

the appropriate amount of void space as indicated by the chart below. Be 

careful not to spill fluid on the o-ring inside the cell. 

7.  Place an o-ring in the cell and another on the outlet cell cap (they are the 

same sized o-ring). To facilitate removing the cell cap at the end of the 

test, lightly apply a coat of stopcock grease (#153-55) to the cell cap o-ring. 

8.  Inspect the cap locking screws. If the cap locking screw are no longer 

sharply pointed, there is a possibility of stress-failure and the screw(s) 

should be replaced. 

9.  Inspect the cap locking screw seats in the cell cap (indentures in the cell 

cap). If the cap locking screw seats are no longer round, there is a possi

-

bility of stress failure and the cap should be replaced. 

10. Place a pre-soaked ceramic disk filter on top of the cell o-ring and gently 

push it downward so it contacts the o-ring. If you need to test with filter 

paper, refer to page 35 for instructions on using the spacer.

API Recommended Void Space

Fluid / Temperature

Void Space

Fluid Volume

Water-based drilling fluid. < 300°F

0.6" (1.5 cm)

138 mL

Water-based drilling fluid. > 300°F

1.5" (4.0 cm)

86 mL

Oil-based drilling fluid. < 350°F (176°C)

1" (2.5 cm)

115 mL

Oil-based drilling fluid. > 350°F (176°C)

Use 500 mL Cell

Temperature – Pressure – Volume: Recommendations

Be Careful Not to spill fluid on the O-ring Groove inside the Cell

Void Space in a 1,500 psi rated cell body

Summary of Contents for 170-55

Page 1: ...ed Test Cell and CO2 Pressuring Assemblies 170 00 7 115 V 170 01 6 230 V Instruction Manual Updated 6 14 2019 Ver 5 OFI Testing Equipment Inc 11302 Steeplecrest Dr Houston Texas 77065 U S A Tele 832 3...

Page 2: ...Tel 832 320 7300 Fax 713 880 9886 www ofite com 1 Intro 2 Specifications 3 Components 4 Safety 11 Diagram 19 Quick Start 20 Operation 22 Data 30 Maintenance 31 Appendix 35 Testing with Filter Paper 35...

Page 3: ...tion devices fully conform to American Petroleum Institute API specifications A complete HTHP Filter Press consists of a controlled pressure source usu ally Nitrogen pressurization or Carbon Dioxide b...

Page 4: ...Size 20 13 13 51 33 33 cm Shipping Weight 33 lbs 15 kg Maximum Temperature Heating Jacket 350 F 177 C Maximum Pressure Cell 2 000 psi 13 8 MPa Maximum Pressure Receiver 750 psi 5 1 MPa Pressure Source...

Page 5: ...ainless Steel Tube for CO2 143 00 Regulator Low Pressure 143 01 200 psi Gauge Bottom Connection 143 02 10 CO2 Puncture Head Assembly 143 02 12 Puncture Pin 143 02 13 O ring 143 02 14 O ring 143 03 Bar...

Page 6: ...Foot Qty 4 171 32 Midget Knob 171 82 8 Power Cord with Male Plug 8 16 3 SJ Round For 170 00 1 115V Only Optional 143 05 EZ Puncture CO2 Bulbs 8 Gram UN 1013 Package of 10 152 00 Hamilton Beach Mixer W...

Page 7: ...2 154 10 Dial Thermometer 5 stem 5 500 F 0 250 C 1 170 13 3 O ring for test cell and cap Viton 75D 50 170 16 Valve Stem for cell pressure and de pressuriza tion 4 170 17 O ring for Valve Stem Viton 75...

Page 8: ...nal items the us age is not compulsory but consideration should be given to these items when running tests at elevated temperatures and pressures Some of the items will be used only on cell assemblies...

Page 9: ...on TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 8 High Pressure Nitrogen Assy 171 31 Thermocouple Assembly 171 45 1 Direct temperature measurement Of the fluid Inside the Cell Stand fo...

Page 10: ...uniform permeable material that forms a tortuous path for fluid flow The most common materials are Alumina and Silica but there is an almost unlimited variety of materials and shapes available HTHP fi...

Page 11: ...thod for determining mean pore throat size and permeability have resulted in new and improved specifications as outlined in the chart All results and all orders should be based upon the information un...

Page 12: ...neously If this happens the filtrate hopefully will all be ejected from the safety bleeder valve but if there is too much fluid volume the liquid may end up inside the regulator rendering it useless w...

Page 13: ...eful not to touch the outside of the jacket at any time during the heat up period or the test It is especially easy to get burned when installing or removing the Back Pressure Receiver as the technici...

Page 14: ...get in the habit of securing the cotter pin to the pin Improper placement of retainer pins in the past have resulted in the pressure manifold separating from the filter press which can cause damage t...

Page 15: ...ement cell caps for instance know which working pressure rated cell assembly you are ordering for Cell Cap 1 500 psi Set Screws 0 75 inch thick Cell Cap 2 000 psi Set Screws 0 94 inch thick Locking Se...

Page 16: ...conditions Cell Corrosion Test fluids under high tempreature and pressure can corrode the cell body and caps Carefully inspect the cell body and calls for corrosion before and after each test Some mat...

Page 17: ...shutoff valve located just before the regulator 4 The 8051140 regulator has been internally cleaned for Oxygen but it is not recommended to pressurize HTHP Filtration tests with Oxygen due to its pot...

Page 18: ...cible results Additional information includes the part number temperature rating the alloy and pressure rating of the cell All OFI Testing Equipment HTHP cell assemblies are made of Stainless Steel Fo...

Page 19: ...170 00 1 170 01 1 T Screw CO2 Pressuring Assembly 170 04 Back Pressure Receiver 170 06 Base 170 15 Gauge 1500 psi 171 34 Regulator 170 08 Barrel for CO2 Bulb 143 03 Manifold Block 171 34 Needle Valve...

Page 20: ...ad Assembly 143 02 10 Barrel for CO2 Bulb 143 03 Safety Bleeder Valve 143 06 Needle Valve 170 32 1 500 psi Gauge 171 34 Manifold Block 170 20 Safety Pin 171 23 1 With Lanyard Valve Stem O ring 170 17...

Page 21: ...amic filter of your choice on top of the o ring 6 Push the outlet cell cap into the cell making sure the arrows align a Valve stem initially open to facilitate insertion b Tighten set screws c Close t...

Page 22: ...iltrate in the graduate cylinder 21 Open the needle or bleeder valves on both the top and back pressure units 22 Remove the top and bottom retainer pins and remove pressuring units from the cell 23 Dr...

Page 23: ...the supplied Allen wrench Screw a valve stem into the cell cap and tighten it completely Standard Buna N o rings 170 13 should be used only for tests up to 300 F 149 C For tests over 300 F 149 C use...

Page 24: ...3 55 to the cell cap o ring 8 Inspect the cap locking screws If the cap locking screw are no longer sharply pointed there is a possibility of stress failure and the screw s should be replaced 9 Inspec...

Page 25: ...down Using the wrench rotate the cell inside the heating jacket so that the pin in the bottom of the heating well seats into the hole in the bottom of the test cell This will anchor the cell in the w...

Page 26: ...and lanyard Ensure that the safety bleeder valve is closed knob pushed all the way inward and the receiver outlet needle valve is closed knob tightened clockwise Use caution It is easy to get burned w...

Page 27: ...s The table below shows the back pressures recommended for various test temperatures 19 Open loosen the Inlet valve stem turn to pressurize the sample Main tain this pressure on the fluid until the te...

Page 28: ...evacuate the valve 25 Close Tighten the needle valve on the receiver 26 Turn the regulator T screws on both the inlet and back pressure receiver counterclockwise until the T screw feels loose This wil...

Page 29: ...es a great cell holder This will help preserve the filter cake Open loosen the inlet valve stem to bleed off pressure from the cell body There should be a noticeable release of pressure from the cell...

Page 30: ...e the cap from the cell with a slight rocking motion The OFITE Cell Cap Removal Tool 170 33 makes it easy to remove tight difficult to remove cell caps 35 There are several ways to remove the filter a...

Page 31: ...a chance to form and is expressed in millimeters To calculate the spurt loss use the following equation V1 2 V7 5 V30 V7 5 2 2V7 5 V30 4V7 5 2V30 Where Vs Standard Filtrate Volume mL V1 Spurt Loss V7...

Page 32: ...e sharply pointed and not dull on outlet side 2 Always thoroughly clean up after each tests a Replace all elastomers if previous test was in excess of 300 F 149 C b Clean out and blow dry if possible...

Page 33: ...essure or steadily increases in pressure re place the seat assembly and diaphragm Concoa Repair Kit Part 143 07 Normally the Concoa regulator is supplied with the 175 mL models The Large High Pressure...

Page 34: ...sertion repair kit 10 Replace the brass retainer and tighten with a wrench 11 Replace the thrust plate with the curved edges downward 12 Place a new rubber diaphragm inside the Soring case 13 Replace...

Page 35: ...lace the valve Seat leak or creep Repair the regulator Inconsistent repeat readings Seat sticking Repair the regulator Bad pressure gauge Replace the gauge Gauge does not return to zero with no pressu...

Page 36: ...an o ring into the recess in the spacer and place the spacer into the cell body with the o ring facing up 3 Insert the scribed cell cap 170 69 into the cell and secure it in place with the six lockin...

Page 37: ...y losses or damages that occur as a result of Improper installation or maintenance of the products Misuse Neglect Adjustment by non authorized sources Improper environment Excessive or inadequate heat...

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