{"id":1147,"date":"2026-09-28T01:50:00","date_gmt":"2026-09-28T01:50:00","guid":{"rendered":"https:\/\/wdlvalve.com\/?p=1147"},"modified":"2026-10-08T12:20:42","modified_gmt":"2026-10-08T12:20:42","slug":"%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%81%e0%b8%b1%e0%b8%99%e0%b8%81%e0%b8%a5%e0%b8%b1%e0%b8%9a%e0%b9%81%e0%b8%9a%e0%b8%9a%e0%b8%81%e0%b8%a5%e0%b8%ad%e0%b8%9a-nab-c95800","status":"publish","type":"post","link":"https:\/\/wdlvalve.com\/th\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%81%e0%b8%b1%e0%b8%99%e0%b8%81%e0%b8%a5%e0%b8%b1%e0%b8%9a%e0%b9%81%e0%b8%9a%e0%b8%9a%e0%b8%81%e0%b8%a5%e0%b8%ad%e0%b8%9a-nab-c95800\/","title":{"rendered":"\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e2b\u0e22\u0e38\u0e14-\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a NAB C95800 Globe: \u0e1f\u0e31\u0e07\u0e01\u0e4c\u0e0a\u0e31\u0e19 \u0e27\u0e31\u0e2a\u0e14\u0e38 \u0e41\u0e25\u0e30\u0e04\u0e39\u0e48\u0e21\u0e37\u0e2d\u0e01\u0e32\u0e23\u0e40\u0e25\u0e37\u0e2d\u0e01"},"content":{"rendered":"
\n
\n

A NAB C95800 globe stop-check valve<\/strong> combines
\nmanual shutoff and flow regulation with automatic protection
\nagainst reverse flow. Its nickel aluminum bronze body makes it
\nsuitable for selected seawater, marine cooling-water and shipboard
\nutility systems.<\/p>\n<\/header>\n


\n\"WDL
\n<\/a>
WDL NAB C95800 globe valve. Stop-check configurations can be
\nmanufactured according to the project specification.<\/figcaption><\/figure>\n
\n

What Is a NAB C95800 Globe Stop-Check Valve?<\/h2>\n

A globe stop-check valve uses a globe-pattern body and a movable
\ndisc to provide three functions: manual isolation, controlled flow
\nregulation and automatic reverse-flow prevention.<\/p>\n

When the handwheel is set to the open position, forward pressure
\nlifts the disc and allows the fluid to pass through the valve. If
\nthe flow reverses, the disc moves back toward the seat and helps
\nprevent backflow. Turning the handwheel downward forces the disc
\nonto the seat for positive isolation.<\/p>\n

This design can replace a separate globe valve and check valve in
\nsome piping systems. However, flow direction, pressure drop,
\ninstallation position and disc movement must be confirmed before
\nordering.<\/p>\n<\/section>\n

\n

Globe Valve vs. Globe Stop-Check Valve<\/h2>\n
\n\n\n\n\n\n\n\n\n
\u0e04\u0e38\u0e13\u0e2a\u0e21\u0e1a\u0e31\u0e15\u0e34<\/th>\nStandard Globe Valve<\/th>\nGlobe Stop-Check Valve<\/th>\n<\/tr>\n<\/thead>\n
Manual shutoff<\/td>\nYes<\/td>\nYes<\/td>\n<\/tr>\n
Flow regulation<\/td>\nSuitable with correctly selected trim<\/td>\nPossible, depending on disc and stem design<\/td>\n<\/tr>\n
Automatic non-return action<\/td>\nNo<\/td>\nYes, when the valve is set open<\/td>\n<\/tr>\n
Typical function<\/td>\nIsolation and throttling<\/td>\nIsolation, throttling and backflow protection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
\n

Why Use ASTM B148 C95800 Nickel Aluminum Bronze?<\/h2>\n

UNS C95800 is a cast nickel aluminum bronze containing copper,
\naluminum, iron, nickel and manganese. ASTM B148 includes
\nrequirements for aluminum-bronze sand castings such as UNS C95800.<\/p>\n

For marine valve bodies, C95800 is commonly considered because it
\ncombines useful mechanical strength with corrosion resistance in
\nmany seawater environments. It can also provide useful resistance
\nto erosion and cavitation when the valve is correctly designed and
\noperated.<\/p>\n

Material selection should not be based on the alloy name alone.
\nSeawater velocity, temperature, aeration, sulfide contamination,
\nstagnant conditions, chlorination and galvanic contact with other
\nmetals must also be evaluated.<\/p>\n

Technical references:
\n
\nCopper Development Association C95800
\n<\/a>
\n\u0e41\u0e25\u0e30
\n
\nASTM B148
\n<\/a>.<\/p>\n<\/section>\n

\n

\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49\u0e07\u0e32\u0e19\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b<\/h2>\n