3570 Series
20
ing spare parts or technical information. When order-
ing replacement parts, also specify the complete
11-character part number from the parts kits or parts
list information.
Parts Kits
Note
Parts kits for the 3570 Series positioners contain the
gaskets, diaphragms, and O-ring seals as specified by
the type and temperature limitations. Parts are for
Type 3570, 3570C, 3570P, and 3570PC positioners.
Positioner Repair Kits
Positioner kit includes:
keys 3, 12, 29C, 29D, 29F, 29K,
29M, 29P, 29Q, 29S, 30, 33, and 37
For the Type 3570
R3570 X00012
For the Type 3570 (hi-temp. const.)
R3570 X00H12
For the Type 3570C
R3570 CX0012
For the Type 3570C (hi-temp. const.)
R3570 CX0H12
Diagnostic Test Connection Kits
Kit includes pipe tee, pipe nipple, pipe
bushings, connector body, and body
protector used with the FlowScanner
(1)
.
Also, part number provides correct
quantities of each item.
For Diaphragm Actuators
Stainless steel 12B8042X012
Steel 12B8042X022
For Piston Actuators
Stainless steel 12B8043X012
Steel 12B8043X022
Pipe Thread Sealant (not furnished with
hardware or connectors)
Parts
List
Positioner Common Parts
(figures 10 and 11)
Key Description Part Number
1 Pilot base, aluminum
3H8580 08022
2 Pedestal, zinc
3H8582 44012
3* Pedestal gasket
Neoprene (std. const.)
1H8547 03012
Fluoroelastomer (hi-temp. const.)
1H8547 X0012
4 Machine screw, pl steel (5 req’d)
1K7811 28992
5 Gauge bracket, pl steel
For all types except 3570C 20B3886 X012
6 Bias spring post, pl steel
1H8549 24102
7 Hex nut, pl steel (2 req’d)
1A4997 24122
8 Spring seat, pl steel (use with key 48 only)
1H8550 24102
Key Description Part Number
9 Bias Spring, extension type
Color Code:
Black
1N7177 000A2
Pink 1J2933 000A2
Dark green
1J2932 X00A2
10 Retaining ring, pl steel (2 req’d)
1P2575 28992
11 Beam, aluminum
3H8579 08022
12 Flapper, SST (2 req’d)
1H8542 36012
13 Flapper arm, aluminum
2H8573 08022
14 Horizontal flexure strip (2 req’d)
1H8543 43992
15 Vertical flexure strip
1H8544 43992
16 Machine screw, pl steel (2 req’d)
1H8546 28982
17 Machine screw, pl steel
For Types 3570, 3570C, 3571 (12 req’d)
For Types 3572, 3573, 3576, 3577 (11 req’d)
1H8545 28982
18 Range Spring, pl steel See table 5, above
19 Spring retainer, pl steel See table 7, above
20 Spring lock, SST
1H8551 36012
21* Bellows assembly, brass
To 50 psig (3.4 bar)
1H8610 000A2
High pressure bellows, brass,
over 50 psig (3.4 bar)
1H9010 000A2
22 Bellows post, brass (2 req’d)
1H8566 14022
23 Name plate, aluminum
2H8609 X0052
24* Instrument gauge, plastic case/brass wetted parts
For all types except 3570C
0-30 psi/0-.2 MPa/0-2 bar 21B4037 X012
0-60 psi/0-.4 MPa/0-4 bar 21B4037 X022
25 Cylinder bottom gauge, plastic case/brass wetted parts
For Types 3570, 3571, 3573, 3577
0-160 psi/0-1.1 MPa/0-11 bar 21B4037 X032
26 Valve Assembly
For Type 3570C only
1N9088 99012
27 Hex nut, brass
For Types 3570, 3571, 3573 (2 req’d)
1C7240 18992
For Types 3572, 3576, 3577 (1 req’d)
1C7240 18992
For Type 3570C (none req’d)
28 Instrument tubing assembly, copper
For all types except 3570C
1H8612 000A2
29 Relay assembly See following table
Note
The parts included in the relay assembly are listed in
the Relay Assembly Parts section.
30* Relay gasket, (2 req’d)
Neoprene (std. const.)
1H8559 03012
Silicone (hi-temp. const.)
1H8559 04142
31 Machine screw, pl steel
For Types 3570, 3570C, 3571 (6 req’d)
1H8569 28992
For Types 3572, 3573, 3576, 3577 (3 req’d)
1H8569 28992
32 Cap screw, pl steel (2 req’d)
1A7820 24052
33* O-ring
Nitrile (std. const.)
1C8538 06992
Fluoroelastomer (hi-temp. const.)
1C8538 X0052
34 Spring anchor, SST
1J2934 35022
35 Machine screw, pl steel (2 req’d)
1H8545 28982
36 Pipe plug, pl steel
1B6366 24162
37* Cover gasket,
Cork (std. const.)
1H8538 04042
Silicone (hi-temp. const.)
1H8538 04142
* Recommended spare part.
1. FlowScanner is a mark owned by Fisher Controls International, Inc.
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