■主要性能规范　chief property and specification
■试验压力 test pressure

公称通径 dn/mm nominal diameter	试验压力/mpa seal test
	壳体强度试验 sheli strength	上密封试验 back seal	密封试验 seal test
2.5	3 8	2 8	2 8
4 o	6 0	4 4	4 4
6 4	9.6	7.0	7.0
10.0	15.0	11.0	110

■试验压力 test pressure

产品类型 product type	适用介质 applicable medium	适用温度/℃ applicable temperature
nkz61h nkz64h nkz964h nkz961h h-c型	水、蒸汽、空气 water,stram.air	≤425
nkz61h nkz64h nkz964h nkz961h y-i型	水、蒸汽、空气 water,stram.air	≤550

■主要零件材料 materials main parts

零件名称 part name	阀体、阀盖 body bonnet	阀杆 valve stem	阀板 wedge gate	密封面 sealing face	阀杆螺母 yoke nut	填料 packing	紧固件 fastener
nkz61h nkz64h nkz964h nkz961h h-c型	wcb	2gr13	25	h：合金钢 h：alloy steel	铝青铜 al bronze	膨胀复合石墨 expanding compound graphite	优质碳钢 high-grade carbon steel
nkz61h nkz64h nkz964h nkz961h y-i型	铬钼钢 cr.mo steel	20cr1mo1va	铬钼钢 cr．mo steel	y：硬质合金 y：carbide alloy			铬钼钢 cr．mo steel

■主要尺寸及重量 main dimensions and weight

公称通径 dn/mm nominal diameter	公称压力 dn/mm nominal pressure	主要外形尺寸和连接尺寸/mm main external and connecting dimensions						电动装置 electric dowice
		l	h	d	do	∝	w
50	2.5	250	618	64	49	37°30’	562	dzw10
65		270	670	82	66	37°30’	562	dzw10
80		280	700	95	78	37°30’	562	dzw10
100		300	785	117	100	37°30’	607	dzw15
125		325	845	144	125	37°30’	607	dzw20i
150		350	990	172	151	37°30’	607	dzw20i
200		400	1080	223	201	37°30’	607	dzw30
250		450	1150	278	253	37°30’	607	dzw30
300		500	1415	330	303	37°30’	755	dzw45
350		550	1665	380	351	37°30’	755	dzw60
400		600	1815	432	398	37°30’	825	dzw90
450		650	1920	484	450	37°30’	825	dzw120
500		700	2080	535	498	37°30’	825	dzw120
600		800	2380	638	600	37°30’	925	dzw180
50	4 o	250	618	64	49	37°30’	562	dzw15
65		270	670	82	66	37°30’	562	dzw15
80		280	700	95	78	37°30’	607	dzw15
100		300	785	117	100	37°30’	607	dzw20i
125		325	845	144	125	37°30’	607	dzw20i
150		350	990	172	151	37°30’	607	dzw30
200		400	1080	223	199	37°30’	607	dzw30
250		450	1150	278	251	37°30’	755	dzw45
300		500	1415	330	301	37°30’	755	dzw60
350		550	1685	382	349	37°30’	825	dzw90i
400		600	1815	432	396	37°30’	825	dzwl20
50	6.4	250	625	64	49	37°30’	562	dzwlo
65		280	693	82	66	37°30’	562	dzwl5
80		310	712	95	76	37°30’	607	dzw20i
100		350	790	117	98	37°30’	607	dzw20i
125		400	855	150	128	37°30’	607	dzw30
150		450	1000	172	149	37°30’	607	dzw30
200		550	1185	223	197	37°30’	755	dzw45
250		650	1255	278	245	37°30’	755	dzw60
300		750	1445	330	293	37°30’	825	dzw90i
350		850	1715	382	341	37°30’	825	dzw120i
400		950	1985	432	386	37°30’	925	dzw180
50	10．o	250	625	64	49	37°30’	562	dzw1o
65		280	693	82	66	37°30’	562	dzw15
80		310	712	95	74	37°30’	607	dzw20i
100		350	790	117	97	37°30’	607	dzw30i
125		400	855	150	124	37°30’	607	dzw30
150		450	1000	172	144	37°30’	755	dzw45
200		550	1185	223	189	37°30’	755	dzw60
250		650	1255	278	235	37°30’	825	dzw90i
300		750	1445	330	281	37°30’	825	dzw120i
350		850	1715	382	333	37°30’	925	dzw180
400		950	1985	432	376	37°30’	925	dzw250