204B type mechanical sealDetailed product description：

204B type mechanical seal

Structure: Single end face, small spring, balanced type
Medium: acid, alkali, oil polymer suspension. Pressure: 0-0.8Mpa
Temperature: -40~180 ℃ Speed: ≤ 500 r/min Specification: φ 25~φ 180

204B assembly size (mm)

Specification	d1 (h8)	d3	d7	D1 (H11)	D2	d	H	n-Φc
204B-30	thirty	sixty-seven	fifty	one hundred and sixteen	one hundred and fifty	one hundred and eighty-five	sixteen	4-Φ18
204B-40	forty	seventy-seven	sixty-four	one hundred and thirty-five	one hundred and seventy	two hundred and five	sixteen	4-Φ18
204B-50	fifty	eighty-seven	seventy-four	one hundred and sixty-four	two hundred	two hundred and thirty-five	sixteen	8-Φ18
204B-60	sixty	ninety-eight	eighty-five	one hundred and sixty-four	two hundred	two hundred and thirty-five	sixteen	8-Φ18
204B-65	sixty-five	one hundred and three	ninety-one	one hundred and sixty-four	two hundred	two hundred and thirty-five	sixteen	8-Φ18
204B-80	eighty	one hundred and eighteen	one hundred and ten	one hundred and eighty-eight	two hundred and twenty-five	two hundred and sixty	sixteen	12-Φ18
204B-95	ninety-five	one hundred and twenty-eight	one hundred and nineteen	two hundred and twenty	two hundred and twenty-five	two hundred and ninety	sixteen	12-Φ18
204B-100	one hundred	one hundred and thirty-eight	one hundred and thirty-two	two hundred and forty-five	two hundred and eighty	three hundred and fifteen	sixteen	12-Φ18
204B-110	one hundred and ten	one hundred and forty-eight	one hundred and forty	two hundred and forty-five	two hundred and eighty	three hundred and fifteen	sixteen	12-Φ18
204B-120	one hundred and twenty	one hundred and fifty-eight	one hundred and fifty-eight	two hundred and forty-five	two hundred and eighty	three hundred and fifteen	twenty-two	12-Φ18
204B-130	one hundred and thirty	one hundred and sixty-eight	one hundred and sixty-eight	two hundred and forty-five	two hundred and eighty	three hundred and fifteen	twenty-two	12-Φ18
204B-140	one hundred and forty	one hundred and seventy-eight	one hundred and eighty	two hundred and forty-five	two hundred and eighty	three hundred and fifteen	twenty-two	12-Φ18
204B-150	one hundred and fifty	one hundred and eighty-eight	one hundred and ninety	two hundred and eighty-five	three hundred and twenty	three hundred and sixty	twenty-five	12-Φ18
204B-160	one hundred and sixty	one hundred and ninety-eight	two hundred	two hundred and eighty-five	three hundred and twenty	three hundred and sixty	twenty-five	12-Φ18
204B-180	one hundred and eighty	two hundred and eighteen	two hundred and twenty	two hundred and eighty-five	three hundred and twenty	three hundred and sixty	twenty-five	12-Φ18