H.P.COMPRESSOR REAVELL SAT-4H/5H/6H/7H.MK8

all sat compressor are single acting,three stage,two crank machines,except for the SAT7H,the second stage is above the first stage with the third stage above its own crosshead.on the sat7h,however,the third stage is above the first with the second stage above its own crosshead......


-valve assemblies in the first and second stages are of the flat plate,low lift type while the third stage valves are of the thimble type.all valve assemblies are easily accessible for maintenance and replacement when required

tecnical details:.....(K.A)
operating pressure range :
-sat4h....................83-310bar(1200-4500psig)
-sat5h....................83-310bar(1200-4500psig)
-sat6h....................83-240bar(1200-3500psig)
-sat7h....................83-205bar(1200-3000psig)

-sump capacity:sat4h/sat5h/sat6h/sat7h......(litre)1.9/5.7/8.0/14.9(3.25/10//14/26pints)
-cylinder lubricator capacity...............1 litre(1.7 pints)
-cylinder lubricator feed rates:
.second stage..........2drops in 3minutes....4drops in 5minutes
.third stage...........2drops in 3minutes....4drops in 5minutes

-water test pressure:
..1st stage cooler sat4h/5h/6h/7h...10.3bar(150psig)
..2nd stage cooler sat4h/5h/6h/7h...76bar(1100psig)/76bar(1100psig)/69bar(1000psig)/69bar(1000psig)
..3rd stage cooler sat4h/5h/6h/7h...465bar(6750psig)/465bar(6750psig)/386bar(5600psig)/345bar(5000psig)
..water jacket sat4h/5h/6h/7h.......7.9bar(55psig)

-running clearance(inches):
..piston(plunger)vertical stage 1/2/3....0.015-0.030/0.030-0.065/0.040-0.080
..piston ring gaps stage 1/2.............0.007-0.017/0.003-0.008
..piston ring width stage 1/2............0.002-0.004(max0.006)/0.0005-0.0025(max0.004)
..piston(plunger)diametral stage 1/2/3...0.0006-0.007(max0.011)/0.004-0.005(max0.007)/0.0005-0.0007(max0.0015)
..crosshead diametral clearance...........0.004-0.005(max0.007)
..small-end bearing diametral.............0.0015-0.0025(max0.005)
..big-end bearing diametral...............0.003-0.0035(max0.006)
..big-end bearing end float...............0.005-0.007(max0.011)
..main bearing diametral..................0.0035-0.0045(max0.007)
..crankshaft end float....................0.014-0.016(max0.024)

-torque setting:........ sat4h/.....5h/.....6h/.....7h (lbf.ft)
..main bearing housing..1/2".....27/.....27/...../.....
........................5/8"......./......./55...../55
..big end bearing bolt..7/16".....23/....../....../......
........................5/8"......../60...../60...../60
..bursting disc cover...1/4".......3/....../....../......
........................3/8"......../11...../...../......
........................1/2"......../......./27...../27
..crankcase doors.......3/8"......11/....../....../......
........................1/2"......../27..../27..../27
first stage valve cover.3/8"......11/....../....../......
........................1/2"......../27...../27...../......
........................5/8"......../......./......./55
..second stage valve cover.3/4"...../......./......./90
..first stage cylinder cover.1/2...27/27...../27...../......
(with 2nd,3rd stagevcylinder blocks).5/8".....55/....../55...../55
..1st stage cylinder block to crankcase.3/4"..../....../......./90
..1st stage suction flange....5/16"......6/....../....../......
..............................3/8"......../11...../...../......
..............................1/2"......../......./27...../27
..1st,2nd stage cooler cover outer end.5/8".....55/....../....../.....
.......................................3/4"......./90...../90...../90
..1st,2nd stage cooler cover driving end.5/8"...55/....../...../......
..1st,2nd stage cooler cover flange......1/2"...27/.....27/27...../27
..3rd stage cooler cover.................3/8"...../......./......./11
.........................................1/2"...../27/...../27...../......

-maintenance:
.after the first running time:
-----15 hours.....check that alignment and belt tensioning in correct
-----100 hours....drain and change crankcase oil
-----250 hours....remove and examine all suction and delivery valve,
..................check that all safety devices are in good condition
..................bursting disc(s)corrosion rod...etc
-every 500hours(12weeks).....check that alignment and belt tension in correct
-every 1000hours(25weeks)....remove and service all suction and delivery valve
...if,after the first two valve inspection all appears well,the removal and service
of all valves may be extended to every 1000 hours
....drain crankcase oil
....if necessary clean cylinder lubricator sight feed glasses
-every 2000hours:examine connecting rod big end bearing and crank pins
..if these are not in good condition examine the main bearing
..examine ball valves and springs in cylinder lubricator system
..check prssure gauge for correct readings
-every 8000hours:
..the comprssor should be given full mechanical check