ZL21/21T Elastomer Bellow Mechanical Seal
replace John Crane 21, VULCAN 11 type,
FLOWSERVE ( Pac-Seal) 110 seal
Ningbo Zhongli John Seals Co., Ltd.
Address:Build #7-103, Qidi industrial Park, No.299 Siming East Road, Fenghua, Ningbo Zhejiang China 315504
Tel:+86 574 8891 1322
Fax:+86 574 8895 2096
Mobile：
General manager:+86 135 6633 2298（Mr. bill fang）
Sales Manager:+86 136 8580 9470（Mr. kerkevin）
Email : sales@zlseals.com fang@zlseals.com
www.zl-seals.com
Description:
ZL21, 21T Mechanical Seal
Replacement to:
John Crane type 21
FLOWSERVE ( Pac-Seal) 110 seal
Latty seal
Roplan seal
Roten 21A seal
SEALOL 43 CU short
STERLING 212A seal
US SEAL C seal
VULCAN 11 type
Materials:
Stationary Ring: Ceramic (Alumina), Silicon Carbide Reaction Bonded, Silicon Carbide Sintered Pressureless, Ni-binder Tungsten Carbide, Co-binder Tungsten Carbide
Rotary Ring: Resin Impregnated Carbon Graphite (Furan), Antimony Impreg, Carbon Graphite, Silicon Carbide Sintered Pressureless, Silicon Carbide Reaction Bonded, Co-binder Tungsten Carbide, Ni-binder Tungsten Carbide
Secondary Seal: Nitrile (NBR), Ethylene Propylene (EPDM), Fluorocarbon Rubber (Viton)
Applications:
Clean water,
Sewage water
Oil and other moderately corrosive fluids
