Instruction Manual

168, 168H, and 68 Series
5
Parts Ordering
When corresponding with the local Sales Ofce about
this equipment, state the type number and all other
pertinent data found on the nameplates (key 14,
Figure 3; key 10, Figure 4). When ordering
replacement parts, also specify the complete
11 character part number of each part required.
Parts List
168 and 168H Series (Figure 3)
Key Description Part Number
1 Diaphragm Case, Aluminum 2U876208012
2 Spring Case Assembly
(consists of keys 2A and 2B) 1U8763000A2
2A Spring Case, Aluminum 4U876408012
2B Spring Case Bushing, Steel and
Polytetrauoroethylene (PTFE) 1U876599402
3 Diaphragm Piston, Aluminum
168 Series 1U876608012
168H Series 1U880009022
4* Diaphragm, Dacron
®(1)
/Nitrile (NBR)
168 Series 2U876702472
168H Series 1U879902472
5 Machine Screw, Plate steel
168 Series 1U876832982
168H Series 1U880132982
6 Stem, SST 1U876935162
7 Range Adjusting Nut, SST (2 required) 1U877046172
8 Spring, Plate steel See Table 1
9 Hex Nut, Zinc plate steel (2 required) 1A680324122
10 Stem Protector Plastic 2U877206992
11 Machine Screw, Plate steel (4 required) 1A331928982
12 Machine Screw, Plate steel
168 Series (8 required) 1H340328992
168H Series (16 required) 1H340328992
13 Hex Nut (168 Series only), Zinc plate
steel (8 required) 1A345724122
14 Nameplate, Aluminum 1U8773X00A2
15 Mounting Bracket, Steel 3P426825022
16 Cap Screw, Plate steel (2 required) 1A381624052
17 Vent Screen, Monel
®(2)
0W086343062
18 Body Assembly See 68 Series parts list
19 Spacer (168H Series only), Aluminum 1U879809022
20 Reset Lever, Aluminum 13A7467X012
21 Knob, 303 (303 SST) 1U879335032
22 Pin 13A7468X012
23 Machine Screw, Steel (2 required) 13A7834X012
24 Indicator Tag, SST 13A7835X012
25 Tubing, Copper (not shown) (specify length) 0500201701W
26 Connector, Brass (not shown) 15A6002X202
27 Elbow, Brass (not shown) 15A6002X162
Key Description Part Number
68 Series (Figure 4)
Key Description Part Number
1 Body, Aluminum 3U877608012
2 Spring Case Assembly
(consists of keys 2A through 2F)
Type 68-3 1U8547000A2
Type 68-1 or 68-2 1U8777000A2
2A Spring Case, Aluminum 3U877808012
2B* O-ring, Nitrile (NBR) 1E220206992
2C Trip Lever, SST 1U877946172
2D Spring, SST See Table 1
2E Trip Lever Pin, SST 1U878149062
2F Spacer, Nylon 1V175006162
3* Rocker Assembly, Glass-lled nylon with
polyurethane valve disks 1U878206992
4 Seat Ring, SST (2 required) 1U878435032
5 Roller Assembly, Aluminum and SST 1U8786000A2
6* O-ring, Nitrile (NBR) 1U879006562
7 Rocker Pin, SST 1U879149062
8 Machine Screw, Plate steel (4 required) 10B6186X012
9 Machine Screw, Plate steel (4 required) 1A327928982
*Recommended spare part.
1. Trademark is a mark owned by E.I. du Pont de Nemours and Co.
2. Trademark is a mark owned by Special Metals Corporation.