Data Sheet

Z500 Ball Valves
D103992X012
Product Bulletin
51.3:Z500
April 2015 - rev B
7
Table 2. Standard Construction Materials for NPS 1/2 through 36 Valves
PART MATERIAL
Balls F22, 316, F91, and 410
Bodies F22, SA105, F91, and F316
Upstream seats 410/F6A, F22, 316, and F91
Body gaskets S17400, N07718, S66286
Springs S17400, N07718, S66286
End adapter F22, SA105, F91, and F316
Coatings HVOF chromium carbide
Packing Flexible graphite with S41000 stainless anti-extrusion rings
Shafts (stem) S17400 nitrided, N07718 nitrided, S66286 nitrided (QPQ - quench polish quench)
Key Zinc plated carbon steel
Stem adapter AISI 4130, 4140
Seat Holder 410/F6A, F22, F316, and F91
Figure 3. Typical Z500 Packing Arrangement
PACKING
NUT
GLAND
PLATE
ANTI-EXTRUSION RINGS
(N06600 BRAIDED GRAPHITE)
VALVE
BODY
ZERO CLEARANCE
WASHERS
VALVE
STEM
PACKING
STUD
GRAPHITE PACKING
(PRESSED RINGS)
X1208
BELLEVILLE
WASHERS
ZERO CLEARANCE
WASHERS