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.</p><p>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 ≤ 3MPa
线转速 Speed ≤ 20m/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