LN83W / 85 w / 87 w series bellows single-seat control valve, based on LN83/85/87 series valve single-seat based on pressure balance structure of bellows seal structure, the pressure of the elastic in bearing parts and stainless steel bellows valve stem connected together, and packing of double seal, eliminate medium leakage hidden trouble. Suitable for differential pressure is highly toxic, flammable, explosive, volatile and the adjustment of the rare and precious metal medium.
Product Description
Bellow globe valve, is in the LN83/85/87 series single-seat adjustment valve on the basis of the pressure balance structure of the bellows sealing structure, the use of elastic pressure bearing parts and stainless steel bellow globe valve is connected together, packing double sealing, to eliminate the hidden danger of media leakage. It is suitable for differential pressure adjustment of highly toxic, flammable, explosive, volatile and rare precious metal media.
Maintenance-free stem gland
Bellows-type gland prevents leakage to the outside. No need to tighten or replace gland packing.
Stellite-hardened surfaces on the valve plug and seat provide superior sealing and durability.
Additional bellows on the exposed portion of the valve stem prevents corrosion from dirt, dust, salt-laden air, or rain.
Leak-free
Leak-free gland with dual-seal design: bellows and gland packing seals
Flexible valve design provides a tight seal even when the stem is slightly off-center.
Steam, hot water, heating media, etc.
TECHNICAL PARAMETERS
| Nominal Size | DN40 ~ DN300 |
| Pressure Rating | PN16/25/40/63/100;CL150(PN20)/300(PN50)/600(PN110) |
| Operateing Temperature | -46℃~ 350℃ |
| Characteristics | Equal percentage, linear, quickly open |
| Rangeability | 50:1 |
| Seat Leakage Class | ANSI B16.104: IV、V、VI |
| Body Material | WCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc. |
| Trim Material | 630/316/316+ST/316nitriding/316+Ni60/316+WC etc. |
| Seal Material | PTFE+ graphite v-shaped packing, flexible graphite ring packing, graphite +PTFE braided packing etc. |
Headquarter Add.: SUPCON Park, No.309 Liuhe Road, Binjiang District, Hangzhou, 310053, China.
Tel.: +86 571 8111 9774
Fax: +86 571 8111 9737
E-mail: [email protected]
