民联机械密封
上海民联机械密封件有限公司
Shanghai Minlian Mechanical Seal Co., Ltd.
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58B / 59B

58B / 59B

58B / 59B 系列机械密封，结构紧凑，性能可靠，适用于石油制品、化工溶剂及中弱腐蚀性介质。

58B / 59B series mechanical seal, compact structure, reliable performance, suitable for petroleum products, chemical solvents and medium/weak corrosive media.

泵用密封Pump Seal 耐高温High Temperature
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产品介绍 / Description

58B / 59B 系列机械密封是适用于各种旋转设备的通用型密封，具有多种尺寸规格。采用平衡型设计，适应较高压力和温度工况。该系列密封件结构简单，安装方便，与多种标准泵型兼容，广泛应用于石油化工、电力、造纸等行业。

The 58B / 59B series mechanical seal is a general-purpose seal suitable for various rotating equipment, available in a wide range of sizes. Adopting balanced design, it adapts to high pressure and temperature conditions.

This series features simple structure, easy installation, and is compatible with various standard pump types, widely used in petrochemical, power, papermaking and other industries.

技术规格 / Technical Specifications

技术参数 / Working Condition

密封腔压力 Pressure ≤ 3 MPa
线转速 Speed ≤ 20 m/Sec
密封腔温度 Temperature -40°C ～ 250°C
适用介质 Medium 石油制品，化工溶剂，中弱腐蚀的酸类或其他相当的介质 Petroleum, chemical solvents, weak and medium corrosion, etc.

材质 / Material

静环 Stationary Ring 陶瓷 / 反应碳化硅 / 无压碳化硅 / 碳化钨 Ceramic / SIC / SSIC / TC
动环 Rotary Ring 石墨 / 反应碳化硅 / 无压碳化硅 / 碳化钨 Carbon / SIC / SSIC / TC
辅助密封 Secondary Seal 丁腈硅胶 / 乙丙橡胶 / 氟橡胶 / 聚四氟乙烯 NBR / EPDM / VITON / Teflon
弹簧及金属件 Spring & Metal Parts SUS304 / SUS316L

型号规格 / Dimensions

58B/59B系列结构及安装尺寸图
型号 d1 d2 D1 D2 D3 D4 L L1 L2 L3 d0
58B-14 14 18 25 21 32 34 49.5 42.5 30.5 24.5 3
58B-16 16 20 27 23 34 36 49.5 42.5 30.5 24.5 3
58B-18 18 22 33 27 36 38 52.5 45 31.5 25 3
58B-20 20 24 35 29 38 40 52.5 45 31.5 25 3
58B-22 22 26 37 31 40 42 52.5 45 31.5 25 3
58B-24 24 28 39 33 42 44 54.5 47.5 34.2 27.5 3
58B-25 25 30 40 34 44 46 54.5 47.5 34.5 27.5 3
58B-28 28 33 43 37 47 49 57 50 37.5 30 3
58B-30 30 35 45 39 49 51 57 50 38 30 3
58B-32 32 38 48 42 54 58 57 50 38 30 3
58B-33 33 38 48 42 54 58 57 50 38 30 3
58B-35 35 40 50 44 56 60 57 50 38 30 3
58B-38 38 43 56 49 59 63 59.5 52.5 39.5 29.5 4
58B-40 40 45 58 51 61 65 59.5 52.5 39.5 29.5 4
58B-43 43 48 61 54 64 68 59.5 52.5 39.5 29.5 4
58B-45 45 50 63 56 66 70 59.5 52.5 39.5 29.5 4
58B-48 48 53 66 59 69 73 59.5 52.5 39.5 29.5 4
58B-50 50 55 70 62 71 75 64.5 57.5 44 32.5 4
58B-53 53 58 73 65 78 83 64.5 57.5 44 32.5 4
58B-55 55 50 75 67 80 85 64.5 57.5 44 32.5 4
58B-58 58 63 78 70 83 88 69.5 62.5 49 37.5 4
58B-60 60 65 80 72 85 90 69.5 62.5 49 37.5 4
58B-63 63 68 83 75 88 93 69.5 62.5 49 37.5 4
58B-65 65 70 85 77 90 95 69.5 62.5 49 37.5 4
58B-70 70 75 92 83 99 104 77 70 55.5 42 4
58B-75 75 80 97 88 104 109 77 70 55.5 42 4
58B-80 80 85 105 95 109 114 77 70 55 42 4
58B-85 85 90 110 100 114 119 82 75 60 47 4
58B-90 90 95 115 105 119 124 82 75 60 47 4
58B-95 95 100 120 110 124 129 82 75 60 47 4
58B-100 100 105 125 115 129 134 82 75 60 47 4

注：58B与59B为相同系列的不同称呼，结构尺寸完全一致。58B-14型号与其他型号的结构略有不同，请注意区分。 / Note: 58B and 59B refer to the same series with identical structural dimensions. The 58B-14 model has slight structural differences from other models; please pay attention when distinguishing.

产品特性 / Features

  • 平衡型设计 Balanced design
  • 多弹簧结构 Multiple spring structure
  • 耐高温性能优异 Excellent high temperature resistance
  • 规格齐全，适用性强 Wide range of specifications, strong applicability