Cart
0
Product
Products
(empty)
No products
To be determined
Shipping
$0.00
Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart.
There is 1 item in your cart.
Total products
Total shipping
To be determined
Total
Sale!
View larger
View larger
MSS SP-143-2018
New product
MSS SP-143-2018 Live-Loaded Valve Stem Packing Systems
standard by Manufacturers Standardization Society, 2018
More info
Full Description
MSS SP-143-2018 establishes the minimum requirements for the application, design and installation oflive-loaded stem packing systems for valves designed in accordance with ASME B16.34, having risingand/or rotating stems. It applies to valves with flexible graphite, polytetrafluoroethylene (PTFE), expandedpolytetrafluoroethylene (ePTFE), or other packing stem seal material, regardless of frequency of operation.This Standard Practice does not apply to valves that include a lantern ring(s) as part of its packing system or to self-energized packing.