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意大利Guarniflon(GF)进口活塞密封圈GPQ独到之处是其特殊的密封截面设计。它具有结实的密封边缘并使用了2个O形圈做为施力元件，因而优化了压力分布。同时也减小了气体对密封件的破坏力。用两个弹性体O型圈取代1个O形圈，增强了耐压能力和密封性能。在动态密封面安装了有限接触点的星形圈弹性体。这种优化设计大大降低了摩擦力，并且使泄漏得以最小化。在需要将两种介质分离(例如：流体/流体或流体/气体)的场合，密封效果好。
| D H9 | d h9 | L+0.2 | r | G | O-ring线径 | X-ring线径 | ||
| GPQ | 100 Bar | 200 Bar | 300 Bar | |||||
| 40--79.9 | D-10.0 | 6.3 | 0.6 | 0.3 | 0.2 | 0.15 | 2.62 | 1.78 |
| 80--132.9 | D-13.0 | 8.3 | 1 | 0.4 | 0.3 | 0.15 | 3.53 | 2.62 |
| 133--462.9 | D-18.0 | 12.3 | 1.3 | 0.4 | 0.3 | 0.2 | 5.33 | 3.53 |
| 463--700 | D-31.0 | 16.3 | 1.8 | 0.5 | 0.4 | 0.3 | 7 | 5.33 |
| 订货号 | D H9*d h9*L+0.2 | O型圈规格 | X型圈规格 |
| GPQ 40×30 T46N | 40*30*6.3 | 29.82*2.62 | 34.65*1.78 |
| GPQ 42×32 T46N | 42*32*6.3 | 31.42*2.62 | 37.82*1.78 |
| GPQ 45×35 T46N | 45*35*6.3 | 34.59*2.62 | 37.82*1.78 |
| GPQ 48×38 T46N | 48*38*6.3 | 37.77*2.62 | 41*1.78 |
| GPQ 50×40 T46N | 50*40*6.3 | 39.34*2.62 | 44.17*1.78 |
| GPQ 52×42 T46N | 52*42*6.3 | 40.94*2.62 | 47.35*1.78 |
| GPQ 55×45 T46N | 55*45*6.3 | 44.12*2.62 | 50.52*1.78 |
| GPQ 60×50 T46N | 60*50*6.3 | 48.9*2.62 | 53.7*1.78 |
| GPQ 63×53 T46N | 63*53*6.3 | 52.07*2.62 | 56.87*1.78 |
| GPQ 65×55 T46N | 65*55*6.3 | 53.64*2.62 | 60.05*1.78 |
| GPQ 70×60 T46N | 70*60*6.3 | 58.42*2.62 | 63.22*1.78 |
| GPQ 75×65 T46N | 75*65*6.3 | 63.17*2.62 | 69.57*1.78 |
| GPQ 80×67 T46N | 80*67*8.3 | 66.27*3.53 | 71.12*2.62 |
| GPQ 85×72 T46N | 85*72*8.3 | 69.44*3.53 | 75.87*2.62 |
| GPQ 90×77 T46N | 90*77*8.3 | 75.79*3.53 | 82.22*2.62 |
| GPQ 95×82 T46N | 95*82*8.3 | 78.97*3.53 | 82.22*2.62 |
| GPQ 100×87 T46N | 100*87*8.3 | 85.32*3.53 | 88.57*2.62 |
| GPQ 105×92 T46N | 105*92*8.3 | 91.67*3.53 | 94.92*2.62 |
| GPQ 110×97 T46N | 110*97*8.3 | 94.84*3.53 | 101.27*2.62 |
| GPQ 115×102 T46N | 115*102*8.3 | 101.19*3.53 | 107.62*2.62 |
| GPQ 120×107 T46N | 120*107*8.3 | 104.37*3.53 | 107.62*2.62 |
| GPQ 125×112 T46N | 125*112*8.3 | 110.72*3.53 | 113.97*2.62 |
| GPQ 130×117 T46N | 130*117*8.3 | 113.89*3.53 | 120.32*2.62 |
| GPQ 135×117 T46N | 135*117*12.3 | 113.67*5.33 | 123.42*3.53 |
| GPQ 140×122 T46N | 140*122*12.3 | 120.02*5.33 | 126.6*3.53 |
| GPQ 150×132 T46N | 150*132*12.3 | 129.54*5.33 | 136.12*3.53 |
| GPQ 160×142 T46N | 160*142*12.3 | 139.07*5.33 | 145.65*3.53 |
| GPQ 170×152 T46N | 170*152*12.3 | 148.49*5.33 | 158.35*3.53 |
| GPQ 180×162 T46N | 180*162*12.3 | 158.12*5.33 | 164.7*3.53 |
| GPQ 190×172 T46N | 190*172*12.3 | 170.82*5.33 | 177.4*3.53 |
| GPQ 200×182 T46N | 200*182*12.3 | 177.17*5.33 | 183.75*3.53 |
| GPQ 210×192 T46N | 210*192*12.3 | 189.87*5.33 | 196.45*3.53 |
| GPQ 220×202 T46N | 220*202*12.3 | 196.22*5.33 | 202.8*3.53 |
| GPQ 230×212 T46N | 230*212*12.3 | 208.92*5.33 | 215.5*3.53 |
| GPQ 240×222 T46N | 240*222*12.3 | 221.62*5.33 | 221.85*3.53 |
| GPQ 250×232 T46N | 250*232*12.3 | 227.97*5.33 | 234.55*3.53 |
| GPQ 280×262 T46N | 280*262*12.3 | 253.37*5.33 | 266.29*3.53 |
| GPQ 300×282 T46N | 300*282*12.3 | 278.77*5.33 | 278.99*3.53 |
| GPQ 320×302 T46N | 320*302*12.3 | 291.47*5.33 | 304.39*3.53 |
| GPQ 350×332 T46N | 350*332*12.3 | 329.57*5.33 | 329.79*3.53 |
| GPQ 400×382 T46N | 400*382*12.3 | 380.37*5.33 | 380.59*3.53 |
| GPQ 420×402 T46N | 420*402*12.3 | 405.26*5.33 | 380.59*3.53 |
| GPQ 450×432 T46N | 450*432*12.3 | 430.66*5.33 | 430.66*3.53 |
| GPQ 480×449 T46N | 480*449*16.3 | 443.36*7 | 456.06*5.33 |
| GPQ 500×469 T46N | 500*469*16.3 | 468.76*7 | 456.06*5.33 |
| GPQ 600×569 T46N | 600*569*16.3 | 557.66*7 | 557.58*5.33 |
| GPQ 700×669 T46N | 700*669*16.3 | 658.88*7 | 658.88*5.33 |