Types 66, 66Z, and 66ZZ
13
Key Description
Part number
4
Diaphragm Plate, Plated steel (2 required)
2-inch (DN 50) body
1D255625072
3-inch (DN 80) body
1D477328992
4-inch (DN 100) body
1D477425062
5* Diaphragm
Nitrile (NBR)/Nylon (PA)
2-inch (DN 50) body
1D477002072
3-inch (DN 80) body
1D477102072
4-inch (DN 100) body
1D477202072
Fluorocarbon (FKM)
2-inch (DN 50) body
1D477002332
3-inch (DN 80) body
1D477102332
4-inch (DN 100) body
1D477202332
6
Spring
See Tables 1A to 1C
7
Bottom Flange, Zinc plated steel
Standard
2-inch (DN 50) body
1D477825062
3-inch (DN 80) body
Type 66
17A9250X012
Types 66Z and 66ZZ
17A9250X012
4-inch (DN 100) body
1D478025062
Type 66 with external control line and
adjustable travel stops
2-inch (DN 50) body
1N9449000A2
4-inch (DN 100) body
1V1716X0012
8* O-Ring
Nitrile (NBR)
2-inch (DN 50) body
1D785306992
3-inch (DN 80) body
1D785406992
4-inch (DN 100) body
1D785506992
4-inch (DN 100) body (NACE)
1D785506992
Fluorocarbon (FKM)
2-inch (DN 50) body
1N115606382
3-inch (DN 80) body
1N115706382
4-inch (DN 100) body
1D2658X0022
9
Disk Retainer
Brass
2-inch (DN 50) body
1D475814012
3-inch (DN 80) body
1D475914012
4-inch (DN 100) body
1D476014012
Stainless steel (also NACE)
2-inch (DN 50) body
1D475835072
3-inch (DN 80) body
1D475935072
4-inch (DN 100) body
1D476035072
10 Valve Plug Skirt
With soft seats
Brass
2-inch (DN 50) body
1D476112012
3-inch (DN 80) body
1D476212012
4-inch (DN 100) body
1D476312012
Stainless steel (also NACE)
2-inch (DN 50) body
1D476133092
3-inch (DN 80) body
1D476233092
4-inch (DN 100) body
1D476333092
Metal-to-Metal Seats
Brass
2-inch (DN 50) body
1E322712012
3-inch (DN 80) body
1E121512012
4-inch (DN 100) body
1J423612012
Stainless steel
2-inch (DN 50) body
1D783012022
3-inch (DN 80) body
1D783112022
4-inch (DN 100) body
1D783212022
Key Description
Part number
11 Seat Ring
Standard
Brass
2-inch (DN 50) body
1D783012022
3-inch (DN 80) body
1D783112022
4-inch (DN 100) body
1D783212022
Stainless steel (also NACE)
2-inch (DN 50) body
1D783033092
3-inch (DN 80) body
1D783133092
4-inch (DN 100) body
1D783233092
Metal-to-Metal Seats
Brass
2-inch (DN 50) body
1E323512022
3-inch (DN 80) body
1E121412022
4-inch (DN 100) body
1J423812022
Stainless steel
2-inch (DN 50) body
1E323533092
3-inch (DN 80) body
1E121433092
4-inch (DN 100) body
1J423833092
12 Pitot Tube
2-inch (DN 50) body
With NPT connection and
brass trim, Copper
1D475117012
With NPT connection and stainless
steel trim, 304 Stainless steel
1D475138072
With flanged connection and
brass trim, Copper
1E737917012
With flanged connection and stainless
steel trim, 304 Stainless steel
1E737938072
3-inch (DN 80) body
With brass trim,
Copper
1D475217012
With stainless steel trim,
304 Stainless steel
1D475238072
4-inch (DN 100) body
With brass trim,
Copper
1D475317012
With stainless steel trim,
304 Stainless steel
1D475338072
13 Valve Plug Stem
For Types 66 and 66Z standard and with
external control line
2-inch (DN 50) body
Brass
1D475414012
Stainless steel (also NACE)
1D475435072
3-inch (DN 80) body
Cast iron bodies only
Brass 1D475514012
Stainless steel
1D475535072
3-inch (DN 80) body,
Steel bodies only
Brass
1N445614012
Stainless steel (also NACE)
1N445635072
4-inch (DN 100) body
Brass
1D475614012
Stainless steel (also NACE)
1D475635072
For Type 66 with metal-to-metal seating
2-inch (DN 50) body
Brass
1E322814012
Stainless steel
1E322835072
3-inch (DN 80) body
Brass
1E121314012
Stainless steel
1E121335072
4-inch (DN 100) body
Brass
1J423714012
Stainless steel
1J423735072
*Recommended Spare Parts