API-RP-576
API ICP Self Study Notes API ICP Self Study Notes
Seating material A key option is the type of seating material used. Metal-to-metal seats, commonly made from stainless steel, are normally used for high temperature applications such as steam. Alternatively, resilient discs can be fixed to either or both of the seating surfaces where tighter shut-off is required, typically for gas or liquid applications. These inserts can be made from a number of different materials, but Viton, nitrile or EPDM are the most common. Soft seal inserts are not generally recommended for steam use. Table 9.2.2 Seating materials used in safety valves Fion Zhang/ Charlie Chong
5.7 Improper Location, History, or Identification Fion Zhang/ Charlie Chong
- Page 125 and 126: Fion Zhang/ Charlie Chong
- Page 127 and 128: Fion Zhang/ Charlie Chong Figure 35
- Page 129 and 130: 5.1 Corrosion Fion Zhang/ Charlie C
- Page 131 and 132: Corrosion is a basic cause of many
- Page 133 and 134: http://www.valveworld.net/safetyequ
- Page 135 and 136: Because there is metal-to-metal con
- Page 137 and 138: Basic interferometry The interferen
- Page 139 and 140: As light travels through the Optica
- Page 141 and 142: Example: 1 a series of fringes indi
- Page 143 and 144: Fion Zhang/ Charlie Chong
- Page 145 and 146: Fion Zhang/ Charlie Chong
- Page 147 and 148: Causes of damaged valve seats; 1. C
- Page 149 and 150: Spring failures. 2 modes of failure
- Page 151 and 152: Fion Zhang/ Charlie Chong
- Page 153 and 154: Fion Zhang/ Charlie Chong The size
- Page 155 and 156: Incorrect calibration of pressure g
- Page 157 and 158: How to adjust a PSV The spring dete
- Page 159 and 160: http://www.cicpro.com/products/safe
- Page 161 and 162: The design of the shroud must be su
- Page 163 and 164: Adjustment pin affect the character
- Page 165 and 166: Fion Zhang/ Charlie Chong
- Page 167 and 168: 5.5 Plugging and Sticking Fion Zhan
- Page 169 and 170: 5.6 Misapplication of Materials Fio
- Page 171 and 172: Typical ball valve material selecti
- Page 173 and 174: Fion Zhang/ Charlie Chong
- Page 175: Fion Zhang/ Charlie Chong
- Page 179 and 180: Fion Zhang/ Charlie Chong V-203
- Page 181 and 182: Fion Zhang/ Charlie Chong
- Page 183 and 184: Rough handling can occur during;
- Page 185 and 186: The following table summarises the
- Page 187 and 188: Greater differentials between opera
- Page 189 and 190: 5.10 Improper Discharge Piping Test
- Page 191 and 192: Fion Zhang/ Charlie Chong When hydr
- Page 193 and 194: Fion Zhang/ Charlie Chong the bello
- Page 195 and 196: 5.11 Improper Handling, Installatio
- Page 197 and 198: Rupture disk problems are often ass
- Page 199 and 200: Fion Zhang/ Charlie Chong
- Page 201 and 202: Fion Zhang/ Charlie Chong
- Page 203 and 204: Fion Zhang/ Charlie Chong
- Page 205 and 206: Fion Zhang/ Charlie Chong
- Page 207 and 208: Fion Zhang/ Charlie Chong
- Page 209 and 210: 6.1 Reasons for Inspection and Test
- Page 211 and 212: 6.2.2 Safety 1. proper authority an
- Page 213 and 214: National Board approved ASME stamps
- Page 215 and 216: The Kdr or aW value can vary accord
- Page 217 and 218: 6.2.5 Removal of Device from System
- Page 219 and 220: Exercise; Dismantling of PSV Fion Z
- Page 221 and 222: Highly Reactive Materials Water-Rea
- Page 223 and 224: 6.2.7 Inspection of Adjacent Inlet
- Page 225 and 226: Fion Zhang/ Charlie Chong Rupture d
Seating material<br />
A key option is the type of seating material used. Metal-to-metal seats,<br />
commonly made from stainless steel, are normally used for high<br />
temperature applications such as steam. Alternatively, resilient discs can<br />
be fixed to either or both of the seating surfaces where tighter shut-off<br />
is required, typically for gas or liquid applications. These inserts can be<br />
made from a number of different materials, but Viton, nitrile or EPDM<br />
are the most common. Soft seal inserts are not generally recommended<br />
for steam use.<br />
Table 9.2.2 Seating materials used in safety valves<br />
Fion Zhang/ Charlie Chong
Change language