公称外径 公称偏差 0.4 MPa 0.6 MPa 0.8 MPa 1 MPa S+偏差 S+偏差 S+偏差 S+偏差 25 +0.3 — — 2.0+0.4 2.1+0.4 32 +0.3 — — 2.2+0.4 2.7+0.5 40 +0.4 — — 2.8+0.5 3.4+0.5 50 +0.5 2.0+0.4 2.6+0.5 3.4+0.6 4.2+0.6 63 +0.5 2.3+0.5 3.3+0.6 4.3+0.7 5.2+0.7 75 +0.7 2.7+0.5 3.9+0.6 5.1+0.8 6.2+0.9 90 +0.9 3.2+0.6 4.7+0.7 6.1+0.9 7.5+1.0 110 +1.0 3.9+0.6 5.7+0.8 7.5+1.0 9.1+1.2 125 +1.2 4.4+0.7 6.5+0.9 8.5+1.1 10.4+1.3 140 +1.3 5.0+0.7 7.2+1.0 9.5+1.2 11.6+1.4 160 +1.5 5.7+0.8 8.3+1.1 10.8+1.3 13.3+1.6 180 +1.7 6.4+0.9 9.3+1.2 12.2+1.4 14.9+1.7 200 +1.8 7.1+1.0, , 10.3+1.3 13.6+1.6 16.6+1.9 225 +2.1 7.9+1.0 11.6+1.4 15.2+1.7 18.7+2.1 250 +2.3 8.8+1.1 12.9+1.5 17.0+1.9 20.7+2.3 280 +2.6 9.9+1.2 14.4+1.7 18.9+2.1 23.2+2.6 315 +2.9 11.1+1.3 16.2+1.9 21.2+2.4 26.1+2.9 355 +3.2 12.5+1.5 18.3+2.1 23.9+2.7 29.4+3.2 400 +3.6 14.1+1.7 20.6+2.3 26.9+3.0 33.2+3.6 450 +4.1 15.8+2.6 23.2+3.7 30.5+4.8 — 500 +4.5 17.6+2.9 25.7+4.1 33.9+5.3 — 560 +5.0 21.6+3.0 31.7+4.3 — — 630 +5.0 24.3+3.2 35.7+4.5 — —