Bestobell Steam FTH-10 Series Float & Thermostatic Trap - Manual (Page 2)

FTH10/IM/0610
6. Inspect the Float mechanism linkage points for wear,
especially at pivot points and Lever Pin (5). Replace
if worn.
7. Inspect Float ball (7) for corrosion pitting, splits or
pinholes. Replace if there is any evidence that the
Float may leak. Replace if the Float is dented or
crushed.
8. Inspect the Air Vent (3) for fatigue corrosion or
fatigue. The Air Vent (3) can be removed by un-
threading the entire sealed assembly from the trap
cover with a box wrench and should be replaced if
there are any doubts about its condition.
9. After cleaning all gasket surfaces, reassemble trap
in reverse order. Lubricate the lever pivot points
with small amounts of graphite paste. An anti-seize
compound on all threads will aid in the disassembly
of the trap at a later date.
10. Before putting cover and attached mechanisms back
into trap body, make sure linkage moves smoothly
and freely. Also check that the Valve Plug (6) seats
properly on Seat (4).
11. Replace Cover assembly into trap body using a new
Body Gasket (8). Tighten bolts evenly, then test for
any leaks. See recommended cover torques.
Discharge Capacities
Capacities shown in blue represent condensate in lbs.
per hour; kg/hr shown in ().
Item Part Name Material Qty
1 Cover Ductile Iron 1
2 Body Ductile Iron 1
3 Air Vent 304 1
4 Seat 410 1
5 Lever Pin 304 1
6 Float Arm/Plug 304 1
7 Ball Float 304 1
8 Gasket Non-asbestos Fiber 1
7
5
4
1
8 6
3 2
Diff.
Pressure
With 4.5 Orifice With 10 Orifice With 14 Orifice
1/2”-3/4” 1” 1-1/2” 2” 1/2”-3/4” 1” 1-1/2” 2” 1/2”-3/4” 1” 1-1/2” 2”
1
(0,07)
250
(114)
900
(409)
2300
(1045)
7400
(3364)
135
(61)
385
(175)
1500
(682)
3900
(1773)
85
(39)
270
(123)
1100
(500)
1850
(841)
5
(0,34)
400
(182)
1550
(705)
4200
(1909)
13500
(6136)
210
(95)
660
(300)
2800
(1273)
7300
(3318)
150
(68)
470
(214)
1800
(818)
3500
(1591)
10
(0,69)
520
(236)
2100
(955)
6000
(2727)
19800
(9000)
280
127)
910
(414)
3900
(1773)
10000
(4545)
195
(89)
640
(291)
2600
(1182)
5000
(2273)
15
(1,03)
600
(273)
2500
(1136)
7500
(3409)
24000
(10909)
330
(150)
1100
(500)
4800
(2182)
12300
(5591)
240
(109)
750
(341)
3200
(1455)
5900
(2682)
20
(1,38)
700
(318)
3000
(1364)
8800
(4000)
28000
(12727)
380
(173)
1300
(591)
5600
(3545)
14500
(6591)
280
(127)
910
(414)
3600
(1636)
6800
(3091)
30
(2,07)
830
(377)
3650
(1659)
10500
(4773)
34000
(15455)
420
(191)
1500
(682)
7000
(3182)
17500
(7955)
310
(141)
1100
(500)
4200
(1909)
8400
(3818)
40
(2,76)
950
(432)
4000
(1818)
12500
(5682)
40000
(18182)
480
(218)
1750
(795)
8000
(3636)
20000
(9091)
355
(161)
1300
(591)
5000
(2273)
9600
(4364)
50
(3,45)
1000
(455)
4500
(2045)
13500
(6136)
45000
(20455)
520
(236)
1850
(841)
9000
(4091)
22500
(10227)
390
(177)
1400
(636)
5450
(2477)
10500
(4773)
65
(4,48)
1150
(523)
5100
(2318)
1500
(6818)
50500
(22955)
580
(264)
2050
(932)
10000
(4545)
26000
(11818)
430
(195)
1600
(727)
6000
(2727)
12000
(5455)
80
(5,52)
630
(286)
2250
(1023)
11500
(5227)
29000
(13182)
480
(218)
1750
(795)
6900
(3136)
13500
(6136)
100
6,9)
700
(318)
2700
(1227)
13000
(5909)
32000
(14545)
515
(234)
1850
(841)
7800
(3545)
15000
(6818)
125
(8,6)
750
(341)
2900
(1318)
14200
(6455)
35000
(15909)
545
(248
2100
(955)
8600
(3909)
16500
(7500)
145
(10,0)
800
(364)
3100
(1409)
15000
(6818)
40000
(18182)
600
(273)
2200
(1000)
9000
(4091)
17500
(7955)
180
(12,4)
660
(300)
2600
(1182)
9650
(4386)
19000
(8636)
200
(13,8)
700
(318)
2750
(1250)
10000
(4545)
20000
(9091)