

一、國標截止閥介紹
國標截止閥屬于強制密封式閥門,所以在閥門關(guān)閉時,必須向閥瓣施加壓力,以強制密封面不泄漏。當介質(zhì)由閥瓣下方進入閥門時,操作力所需要克服的阻力,是閥桿和填料的摩擦力與由介質(zhì)的壓力所產(chǎn)生的推力,關(guān)閥門的力比開閥門的力大,所以閥桿的直徑要大,否則會發(fā)生閥桿頂彎的故障。近年來,從自密封的閥門出現(xiàn)后,法蘭截止閥的介質(zhì)流向就改由閥瓣上方進入閥腔,這時在介質(zhì)壓力作用下,關(guān)閥門的力小,而開閥門的力大,閥桿的直徑可以相應(yīng)地減少。同時,在介質(zhì)作用下,這種形式的不銹鋼氣動閥門也較嚴密。
	
壓力試驗 
| 公稱壓力 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | 
| 強度試驗 | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 | 
| 水密封試驗 | 1.8 | 2.8 | 4.4 | 7.4 | 11.0 | 18.0 | 
| 上密封試驗 | 1.8 | 2.8 | 4.4 | 7.04 | 11.0 | 18.0 | 
| 氣密封試驗 | 0.4-0.7 | |||||
	
 二、手動截止閥主要零件材料及性能
| 體蓋扳 | 閥桿 | 密封面 | 墊片(環(huán)) | 填料 | 工作溫度℃ | 適用介質(zhì) | 
| WCB | 2Cr13 | 
				13Cr STL 本體材料 尼龍  | 
			
				增強柔性石墨 1Crl3/柔性石墨 08軟鋼 0Cr18Ni9Ti OCr18Ni12Mo2Ti  | 
			
				柔性石墨 增強柔性石墨 SFB-260 SFP-260  | 
			≤425 | 
				  水、蒸汽、油品  | 
		
| WC1 | 
				38CrMoAI 25Cr2MoV  | 
			≤450 | ||||
| WC6 | ≤540 | |||||
| WC9 | ≤570 | |||||
| ZGCr5Mo | ≤540 | |||||
| ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | ≤200 | 硝酸類 | |||
| ZGCr18Ni12Mo2Ti | 1C18Ni12Mo2Ti | ≤200 | 醋酸類 | 
	
三、主要外形和連接尺寸 
| 
				 公稱通徑  | 
			
				 主要外型尺寸和連接尺寸  | 
		||||||||
| 
				 L  | 
			
				 D  | 
			
				 D1  | 
			
				 D2  | 
			
				 b  | 
			
				 f  | 
			
				 Z-d  | 
			
				 H  | 
			
				 D0  | 
		|
| 
				 J41H/Y-16C J41W-16P J41W-16R J41Y-16I  | 
		|||||||||
| 
				 10  | 
			
				 130  | 
			
				 90  | 
			
				 60  | 
			
				 40  | 
			
				 14  | 
			
				 2  | 
			
				 4-14  | 
			
				 198  | 
			
				 120  | 
		
| 
				 15  | 
			
				 130  | 
			
				 95  | 
			
				 65  | 
			
				 45  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 218  | 
			
				 120  | 
		
| 
				 20  | 
			
				 150  | 
			
				 105  | 
			
				 75  | 
			
				 55  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 258  | 
			
				 140  | 
		
| 
				 25  | 
			
				 160  | 
			
				 115  | 
			
				 85  | 
			
				 65  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 275  | 
			
				 160  | 
		
| 
				 32  | 
			
				 180  | 
			
				 135  | 
			
				 100  | 
			
				 78  | 
			
				 18  | 
			
				 2  | 
			
				 4-18  | 
			
				 280  | 
			
				 180  | 
		
| 
				 40  | 
			
				 200  | 
			
				 145  | 
			
				 110  | 
			
				 85  | 
			
				 18  | 
			
				 3  | 
			
				 4-18  | 
			
				 330  | 
			
				 200  | 
		
| 
				 50  | 
			
				 230  | 
			
				 160  | 
			
				 125  | 
			
				 100  | 
			
				 18  | 
			
				 3  | 
			
				 4-18  | 
			
				 350  | 
			
				 240  | 
		
| 
				 65  | 
			
				 290  | 
			
				 180  | 
			
				 145  | 
			
				 120  | 
			
				 18  | 
			
				 3  | 
			
				 4-18  | 
			
				 355  | 
			
				 280  | 
		
| 
				 80  | 
			
				 310  | 
			
				 195  | 
			
				 160  | 
			
				 135  | 
			
				 20  | 
			
				 3  | 
			
				 8-18  | 
			
				 400  | 
			
				 280  | 
		
| 
				 100  | 
			
				 350  | 
			
				 215  | 
			
				 180  | 
			
				 155  | 
			
				 22  | 
			
				 3  | 
			
				 8-18  | 
			
				 415  | 
			
				 320  | 
		
| 
				 125  | 
			
				 400  | 
			
				 245  | 
			
				 210  | 
			
				 185  | 
			
				 24  | 
			
				 3  | 
			
				 8-23  | 
			
				 460  | 
			
				 360  | 
		
| 
				 150  | 
			
				 480  | 
			
				 280  | 
			
				 240  | 
			
				 210  | 
			
				 24  | 
			
				 3  | 
			
				 12-23  | 
			
				 510  | 
			
				 400  | 
		
| 
				 200  | 
			
				 600  | 
			
				 335  | 
			
				 295  | 
			
				 265  | 
			
				 26  | 
			
				 3  | 
			
				 12-23  | 
			
				 710  | 
			
				 400  | 
		
| 
				 250  | 
			
				 650  | 
			
				 405  | 
			
				 355  | 
			
				 320  | 
			
				 30  | 
			
				 3  | 
			
				 12-23  | 
			
				 786  | 
			
				 450  | 
		
| 
				 300  | 
			
				 750  | 
			
				 460  | 
			
				 410  | 
			
				 375  | 
			
				 30  | 
			
				 3  | 
			
				 12-23  | 
			
				 925  | 
			
				 500  | 
		
| 
				 公稱通徑  | 
			
				 主要外型尺寸和連接尺寸  | 
		||||||||||
| 
				 L  | 
			
				 D  | 
			
				 D1  | 
			
				 D2  | 
			
				 b  | 
			
				 f  | 
			
				 Z-d  | 
			
				 H手  | 
			
				 H電  | 
			
				 D  | 
			
				 電動裝置  | 
		|
| 
				 J41H/Y-25 J41W-25P J41W-25R J41Y-25I J941H/Y-25 J941W-25P J941W-25R J941W-25I  | 
		|||||||||||
| 
				 10  | 
			
				 130  | 
			
				 90  | 
			
				 60  | 
			
				 40  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 198  | 
			
				 -  | 
			
				 120  | 
			
				 -  | 
		
| 
				 15  | 
			
				 130  | 
			
				 95  | 
			
				 65  | 
			
				 45  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 218  | 
			
				 -  | 
			
				 120  | 
			
				 -  | 
		
| 
				 20  | 
			
				 150  | 
			
				 105  | 
			
				 75  | 
			
				 55  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 258  | 
			
				 -  | 
			
				 140  | 
			
				 -  | 
		
| 
				 25  | 
			
				 160  | 
			
				 115  | 
			
				 85  | 
			
				 65  | 
			
				 16  | 
			
				 2  | 
			
				 4-14  | 
			
				 275  | 
			
				 -  | 
			
				 160  | 
			
				 -  | 
		
| 
				 32  | 
			
				 180  | 
			
				 135  | 
			
				 100  | 
			
				 78  | 
			
				 18  | 
			
				 2  | 
			
				 4-18  | 
			
				 280  | 
			
				 -  | 
			
				 180  | 
			
				 -  | 
		
| 
				 40  | 
			
				 200  | 
			
				 145  | 
			
				 110  | 
			
				 85  | 
			
				 18  | 
			
				 3  | 
			
				 4-18  | 
			
				 330  | 
			
				 -  | 
			
				 200  | 
			
				 -  | 
		
| 
				 50  | 
			
				 230  | 
			
				 160  | 
			
				 125  | 
			
				 100  | 
			
				 20  | 
			
				 3  | 
			
				 4-18  | 
			
				 350  | 
			
				 645  | 
			
				 240  | 
			
				 DZW10  | 
		
| 
				 65  | 
			
				 290  | 
			
				 180  | 
			
				 145  | 
			
				 120  | 
			
				 22  | 
			
				 3  | 
			
				 8-18  | 
			
				 400  | 
			
				 690  | 
			
				 280  | 
			
				 DZW10  | 
		
| 
				 80  | 
			
				 310  | 
			
				 195  | 
			
				 160  | 
			
				 135  | 
			
				 22  | 
			
				 3  | 
			
				 8-18  | 
			
				 355  | 
			
				 715  | 
			
				 280  | 
			
				 DZW15  | 
		
| 
				 100  | 
			
				 350  | 
			
				 230  | 
			
				 190  | 
			
				 160  | 
			
				 24  | 
			
				 3  | 
			
				 8-23  | 
			
				 415  | 
			
				 770  | 
			
				 320  | 
			
				 DZW20  | 
		
| 
				 125  | 
			
				 400  | 
			
				 270  | 
			
				 220  | 
			
				 188  | 
			
				 28  | 
			
				 3  | 
			
				 8-25  | 
			
				 460  | 
			
				 780  | 
			
				 360  | 
			
				 DZW30  | 
		
| 
				 150  | 
			
				 480  | 
			
				 300  | 
			
				 250  | 
			
				 218  | 
			
				 30  | 
			
				 3  | 
			
				 8-25  | 
			
				 510  | 
			
				 875  | 
			
				 400  | 
			
				 DZW45  | 
		
| 
				 200  | 
			
				 600  | 
			
				 360  | 
			
				 310  | 
			
				 278  | 
			
				 34  | 
			
				 3  | 
			
				 12-25  | 
			
				 710  | 
			
				 967  | 
			
				 400  | 
			
				 DZW60  | 
		
| 
				 250  | 
			
				 650  | 
			
				 425  | 
			
				 370  | 
			
				 332  | 
			
				 36  | 
			
				 3  | 
			
				 12-30  | 
			
				 786  | 
			
				 -  | 
			
				 450  | 
			
				 -  | 
		
| 
				 300  | 
			
				 750  | 
			
				 485  | 
			
				 430  | 
			
				 390  | 
			
				 40  | 
			
				 4  | 
			
				 12-30  | 
			
				 925  | 
			
				 -  | 
			
				 500  | 
			
				 -  | 
		
| 
				 公稱通徑  | 
			
				 主要外型尺寸和連接尺寸  | 
		||||||||||||
| 
				 L  | 
			
				 D  | 
			
				 D1  | 
			
				 D2  | 
			
				 D6  | 
			
				 b  | 
			
				 f  | 
			
				 f2  | 
			
				 Z-d  | 
			
				 H手  | 
			
				 H電  | 
			
				 D  | 
			
				 電動裝置  | 
		|
| 
				 J41H/Y-40 J41W-40P J41W-40R J41Y-40I J941H/Y-40 J941W-40P J941W-40R J941W-40I  | 
		|||||||||||||
| 
				 10  | 
			
				 130  | 
			
				 90  | 
			
				 60  | 
			
				 40  | 
			
				 35  | 
			
				 16  | 
			
				 2  | 
			
				 2  | 
			
				 4-14  | 
			
				 198  | 
			
				 -  | 
			
				 120  | 
			
				 -  | 
		
| 
				 15  | 
			
				 130  | 
			
				 95  | 
			
				 65  | 
			
				 45  | 
			
				 40  | 
			
				 16  | 
			
				 2  | 
			
				 4  | 
			
				 4-14  | 
			
				 233  | 
			
				 -  | 
			
				 120  | 
			
				 -  | 
		
| 
				 20  | 
			
				 150  | 
			
				 105  | 
			
				 75  | 
			
				 55  | 
			
				 51  | 
			
				 16  | 
			
				 2  | 
			
				 4  | 
			
				 4-14  | 
			
				 275  | 
			
				 -  | 
			
				 140  | 
			
				 -  | 
		
| 
				 25  | 
			
				 160  | 
			
				 115  | 
			
				 85  | 
			
				 65  | 
			
				 58  | 
			
				 16  | 
			
				 2  | 
			
				 4  | 
			
				 4-14  | 
			
				 285  | 
			
				 -  | 
			
				 160  | 
			
				 -  | 
		
| 
				 32  | 
			
				 180  | 
			
				 135  | 
			
				 100  | 
			
				 78  | 
			
				 66  | 
			
				 18  | 
			
				 2  | 
			
				 4  | 
			
				 4-18  | 
			
				 302  | 
			
				 -  | 
			
				 180  | 
			
				 -  | 
		
| 
				 40  | 
			
				 200  | 
			
				 145  | 
			
				 110  | 
			
				 85  | 
			
				 76  | 
			
				 18  | 
			
				 3  | 
			
				 4  | 
			
				 4-18  | 
			
				 355  | 
			
				 -  | 
			
				 200  | 
			
				 -  | 
		
| 
				 50  | 
			
				 230  | 
			
				 160  | 
			
				 125  | 
			
				 100  | 
			
				 88  | 
			
				 20  | 
			
				 3  | 
			
				 4  | 
			
				 4-18  | 
			
				 373  | 
			
				 645  | 
			
				 240  | 
			
				 DZW10  | 
		
| 
				 65  | 
			
				 290  | 
			
				 180  | 
			
				 145  | 
			
				 120  | 
			
				 110  | 
			
				 22  | 
			
				 3  | 
			
				 4  | 
			
				 4-18  | 
			
				 408  | 
			
				 690  | 
			
				 280  | 
			
				 DZW10  | 
		
| 
				 80  | 
			
				 310  | 
			
				 195  | 
			
				 160  | 
			
				 135  | 
			
				 121  | 
			
				 22  | 
			
				 3  | 
			
				 4  | 
			
				 8-18  | 
			
				 436  | 
			
				 715  | 
			
				 320  | 
			
				 DZW20  | 
		
| 
				 100  | 
			
				 350  | 
			
				 230  | 
			
				 190  | 
			
				 160  | 
			
				 150  | 
			
				 24  | 
			
				 3  | 
			
				 4.5  | 
			
				 8-18  | 
			
				 480  | 
			
				 770  | 
			
				 360  | 
			
				 DZW30  | 
		
| 
				 125  | 
			
				 400  | 
			
				 270  | 
			
				 220  | 
			
				 188  | 
			
				 176  | 
			
				 28  | 
			
				 3  | 
			
				 4.5  | 
			
				 8-23  | 
			
				 558  | 
			
				 782  | 
			
				 400  | 
			
				 DZW45  | 
		
| 
				 150  | 
			
				 480  | 
			
				 300  | 
			
				 250  | 
			
				 218  | 
			
				 204  | 
			
				 30  | 
			
				 3  | 
			
				 4.5  | 
			
				 8-25  | 
			
				 611  | 
			
				 875  | 
			
				 400  | 
			
				 DZW60  | 
		
| 
				 200  | 
			
				 600  | 
			
				 375  | 
			
				 320  | 
			
				 282  | 
			
				 260  | 
			
				 38  | 
			
				 3  | 
			
				 4.5  | 
			
				 12-30  | 
			
				 720  | 
			
				 1160  | 
			
				 400  | 
			
				 DZW90  | 
		
| 
				 公稱通徑  | 
			
				 主要外形尺寸和連接尺寸  | 
		|||||||||
| 
				 L  | 
			
				 D  | 
			
				 D1  | 
			
				 D2  | 
			
				 D6  | 
			
				 b  | 
			
				 Z-d  | 
			
				 H  | 
			
				 H1  | 
			
				 D0  | 
		|
| 
				 J41H/Y-64 J941H/Y-64 J41Y-64I J941Y-64I  | 
		||||||||||
| 
				 15  | 
			
				 170  | 
			
				 105  | 
			
				 75  | 
			
				 55  | 
			
				 41  | 
			
				 18  | 
			
				 414  | 
			
				 195  | 
			
				 210  | 
			
				 140  | 
		
| 
				 20  | 
			
				 190  | 
			
				 125  | 
			
				 90  | 
			
				 68  | 
			
				 51  | 
			
				 20  | 
			
				 418  | 
			
				 228  | 
			
				 248  | 
			
				 160  | 
		
| 
				 25  | 
			
				 210  | 
			
				 135  | 
			
				 100  | 
			
				 78  | 
			
				 58  | 
			
				 22  | 
			
				 418  | 
			
				 250  | 
			
				 275  | 
			
				 180  | 
		
| 
				 32  | 
			
				 230  | 
			
				 150  | 
			
				 110  | 
			
				 82  | 
			
				 66  | 
			
				 24  | 
			
				 423  | 
			
				 325  | 
			
				 355  | 
			
				 200  | 
		
| 
				 40  | 
			
				 260  | 
			
				 165  | 
			
				 125  | 
			
				 95  | 
			
				 76  | 
			
				 24  | 
			
				 423  | 
			
				 360  | 
			
				 395  | 
			
				 240  | 
		
| 
				 50  | 
			
				 300  | 
			
				 175  | 
			
				 135  | 
			
				 105  | 
			
				 88  | 
			
				 26  | 
			
				 423  | 
			
				 410  | 
			
				 450  | 
			
				 280  | 
		
| 
				 65  | 
			
				 340  | 
			
				 200  | 
			
				 160  | 
			
				 130  | 
			
				 110  | 
			
				 28  | 
			
				 823  | 
			
				 450  | 
			
				 494  | 
			
				 320  | 
		
| 
				 80  | 
			
				 380  | 
			
				 210  | 
			
				 170  | 
			
				 140  | 
			
				 121  | 
			
				 30  | 
			
				 823  | 
			
				 485  | 
			
				 485  | 
			
				 360  | 
		
| 
				 100  | 
			
				 430  | 
			
				 250  | 
			
				 200  | 
			
				 168  | 
			
				 150  | 
			
				 32  | 
			
				 825  | 
			
				 537  | 
			
				 537  | 
			
				 400  | 
		
| 
				 150  | 
			
				 550  | 
			
				 340  | 
			
				 280  | 
			
				 240  | 
			
				 204  | 
			
				 38  | 
			
				 834  | 
			
				 646  | 
			
				 646  | 
			
				 450  | 
		
| 
				 200  | 
			
				 650  | 
			
				 405  | 
			
				 345  | 
			
				 300  | 
			
				 --  | 
			
				 44  | 
			
				 1234  | 
			
				 813  | 
			
				 813  | 
			
				 500  | 
		
| 
				 J41H/Y-100 J941H/Y-100 J41Y-100I J941Y-100I  | 
		||||||||||
| 
				 15  | 
			
				 170  | 
			
				 105  | 
			
				 75  | 
			
				 55  | 
			
				 40  | 
			
				 20  | 
			
				 414  | 
			
				 195  | 
			
				 210  | 
			
				 100  | 
		
| 
				 20  | 
			
				 190  | 
			
				 125  | 
			
				 90  | 
			
				 68  | 
			
				 51  | 
			
				 22  | 
			
				 418  | 
			
				 228  | 
			
				 248  | 
			
				 120  | 
		
| 
				 25  | 
			
				 210  | 
			
				 135  | 
			
				 100  | 
			
				 78  | 
			
				 58  | 
			
				 24  | 
			
				 418  | 
			
				 250  | 
			
				 275  | 
			
				 160  | 
		
| 
				 32  | 
			
				 230  | 
			
				 150  | 
			
				 110  | 
			
				 82  | 
			
				 66  | 
			
				 24  | 
			
				 423  | 
			
				 326  | 
			
				 348  | 
			
				 200  | 
		
| 
				 40  | 
			
				 260  | 
			
				 165  | 
			
				 125  | 
			
				 95  | 
			
				 76  | 
			
				 26  | 
			
				 423  | 
			
				 359  | 
			
				 388  | 
			
				 240  | 
		
| 
				 50  | 
			
				 300  | 
			
				 195  | 
			
				 145  | 
			
				 112  | 
			
				 88  | 
			
				 28  | 
			
				 425  | 
			
				 414  | 
			
				 448  | 
			
				 280  | 
		
| 
				 65  | 
			
				 340  | 
			
				 220  | 
			
				 170  | 
			
				 138  | 
			
				 110  | 
			
				 32  | 
			
				 825  | 
			
				 434  | 
			
				 477  | 
			
				 320  | 
		
| 
				 80  | 
			
				 380  | 
			
				 230  | 
			
				 180  | 
			
				 148  | 
			
				 121  | 
			
				 34  | 
			
				 825  | 
			
				 547  | 
			
				 598  | 
			
				 400  | 
		
| 
				 100  | 
			
				 430  | 
			
				 265  | 
			
				 210  | 
			
				 172  | 
			
				 150  | 
			
				 38  | 
			
				 830  | 
			
				 621  | 
			
				 685  | 
			
				 450  | 
		
| 
				 125  | 
			
				 500  | 
			
				 310  | 
			
				 250  | 
			
				 210  | 
			
				 176  | 
			
				 42  | 
			
				 834  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		
| 
				 150  | 
			
				 550  | 
			
				 350,  | 
			
				 290  | 
			
				 250  | 
			
				 204  | 
			
				 46  | 
			
				 1234  | 
			
				 840  | 
			
				 -  | 
			
				 -  | 
		
| 
				 200  | 
			
				 650  | 
			
				 430  | 
			
				 360  | 
			
				 312  | 
			
				 260  | 
			
				 54  | 
			
				 1241  | 
			
				 925  | 
			
				 -  | 
			
				 -  |