Nominal Size |
DN40 ~ DN300 |
Pressure Rating |
Class 150 LB (PN20)/ 300 LB (PN50)/ 600 LB (PN100) |
Operateing Temperature |
-46℃ - 350℃ |
Characteristics |
Equal percentage, linear, quickly open |
Rangeability |
50:1 |
Seat Leakage Class |
ANSI B16.104: IV, V, VI |
Body Material |
ASTM A216 WCB/ASTM A216 WCC/ASTM A352 LCB/ASTM A352 LCC/ASTM A217 WC6/ASTM A216 WC9/ASTM A351 CF8/ASTM A351 CF8M, etc. |
Trim Material |
SS 630/SS 316/SS 316+ST/316nitriding/316+Ni60/316+WC etc. |
Seal Material |
PTFE+ graphite v-shaped packing, flexible graphite ring packing, graphite +PTFE braided packing etc. |
Advantages:
• Low-Maintenance Stem Seal: The bellows-style gland is designed to prevent any leakage, eliminating the need for regular tightening or replacement of the gland packing.
• Durability and Sealing: The valve plug and seat are equipped with Stellite-hardened surfaces, ensuring long-lasting and superior sealing performance.
• Corrosion Protection: Additional bellows on the exposed part of the valve stem offer protection against corrosion from various environmental factors such as dirt, dust, salty air, or rain.
• Seamless Sealing: The gland boasts a leak-proof design with a dual-seal mechanism, featuring both bellows and gland packing seals.
• Adaptive Sealing Technology: The flexible valve design ensures a secure seal even in cases where the stem might be slightly misaligned.