品牌
生产厂家厂商性质
温州市所在地
NKJ61H真空截止阀
真空截止阀主要结构特点及用途
1、本系列阀门主体采用铸锻结构，具有平行双密封副半强制双向密封，密封面到位运动和楔形块楔紧运动分步作用实现零泄漏。
2、密封面运动磨擦力小、启闭轻便，而且密封面磨损有自动补偿功能。
3、结构简单、紧凑、检修方便，使用寿命长。
4、阀盖填料室设有真空密封结构，具有自胀压紧作用，并且密封采用高强膨胀材料密封，使系统与大气*隔离，具有很好的系统气密性。
5、本系列阀门连接形式分法兰、焊接两种，驱动方式有手动、电动两种。
该阀门适用于工作温度≤425℃和≤550℃，工作介质为水、蒸汽或空气的管路上，作为启闭装置；尤其适用于火电厂汽机冷凝和真空负压系统，起真空隔离密封作用
结构型式 Valve ctrucure type
NKJ61型真空隔离截止阀；
NKJ61型阀门主要性能规范
| 产品类型 Product type | 壳体强度试验/MPa Sheli strangth test | 上密封试验/MPa Back seal test | 密封试验/MPa Seal test | 适用介质 Applicable medium | 适用温度/℃ Applicable temperature |
| NKJ61H-40 | 6.O | 4.4 | 4.4 | 水、蒸汽、空气 Water、Steam、Air | ≤425 |
| NKJ61H-64 | 96 | 7.O | 7.O | ||
| NKJ61H-100 | 15.O | 11.0 | 11.O | ||
| NKJ61Y-40l | 6.O | 4.4 | 4.4 | 水、蒸汽、空气 Water、Steam、Air | ≤550 |
| NKJ61Y-64l | 9.6 | 7.0 | 7.O | ||
| NKJ61Y-1OOI | 15.O | 11.O | 11.O |
主要零件材料 Material for Main Parts
| 零件名称 Part name | 阀体、阀盖 Body Bonnet | 阀杆 Valve Stem |
阀瓣 Disc | 密封面 Sealing face | 阀杆螺母 Yokenut | 填料 Packing | 紧固件 Fasteher |
| NKJ61H-C型 | 25或WCB | 铬不锈钢 Crstain mless teel | 铬不锈钢 Crstain mless steel |
H：合金钢 |
铝青铜 |
膨胀复合石墨 | 优质碳钢 High-grade carbon steel |
| NKJ61Y-l型 | 铬钼钢 Cr.Mo steel | 20CrlM01vA 或38CrMoAlA | 12CrlMo 1VA | Y：硬质合金 Y:oarbide alloy |
铬钼钢 |
主要尺寸及重量 Main dimensions and weight
| 公称通径 DN/mm Nominal diameter | 公称压力 PN/MPa Nominal pressure |
主要外形尺寸和连接尺寸/mm | |||||||
| L | H | D | D0 | D1 | L1 | α | W | ||
| 1O | 4.0 | 130 | 245 | 36 | 11 | 18.4 | 1O | - | 120 |
| 15 | 130 | 245 | 36 | 16 | 22.5 | 1O | - | 120 | |
| 20 | 150 | 265 | 44 | 21 | 28.5 | 11 | - | 160 | |
| 25 | 160 | 270 | 48 | 26 | 34.5 | 12 | - | 200 | |
| 32 | 180 | 285 | 48 | 34 | - | - | 37o30' | 200 | |
| 40 | 200 | 320 | 55 | 40 | - | - | 37o30' | 240 | |
| 50 | 230 | 365 | 64 | 48 | - | - | 37o30' | 320 | |
| 65 | 290 | 41O | 82 | 66 | - | - | 37o30' | 300 | |
| 80 | 31O | 430 | 95 | 78 | - | - | 37o30' | 300 | |
| 100 | 350 | 470 | 117 | 1OO | - | - | 37o30' | 350 | |
| 125 | 400 | 500 | 143 | 126 | - | - | 37o30' | 350 | |
| 150 | 480 | 533 | 167 | 150 | - | - | 37o30' | 400 | |
| 1O | 6.4 | 130 | 245 | 36 | 1O | 18.4 | 1O | - | 120 |
| 15 | 130 | 245 | 36 | 15 | 22.5 | 1O | - | 120 | |
| 20 | 150 | 265 | 44 | 20 | 28.5 | 11 | - | 160 | |
| 25 | 160 | 270 | 48 | 25 | 34.5 | 12 | - | 200 | |
| 32 | 180 | 280 | 48 | 33 | - | - | 37o30' | 200 | |
| 40 | 200 | 320 | 55 | 39 | - | - | 37o30' | 240 | |
| 50 | 230 | 365 | 64 | 48 | - | - | 37o30' | 320 | |
| 65 | 290 | 41O | 82 | 65 | - | - | 37o30' | 320 | |
| 80 | 31O | 430 | 95 | 76 | - | - | 37o30' | 360 | |
| 100 | 350 | 470 | 117 | 98 | - | - | 37o30' | 400 | |
| 125 | 480 | 500 | 143 | 123 | - | - | 37o30' | 400 | |
| 150 | 480 | 533 | 167 | 148 | - | - | 37o30' | 500 | |
| 1O | 10.O | 130 | 245 | 36 | 1O | 18.4 | 1O | - | 120 |
| 15 | 130 | 245 | 36 | 14 | 22.5 | 1O | - | 120 | |
| 20 | 150 | 265 | 44 | 20 | 28.5 | 11 | - | 160 | |
| 25 | 160 | 270 | 48 | 25 | 34.5 | 12 | - | 200 | |
| 32 | 180 | 285 | 48 | 32 | - | - | 37o30' | 200 | |
| 40 | 200 | 320 | 55 | 38 | - | - | 37o30' | 240 | |
| 50 | 230 | 355 | 64 | 48 | - | - | 37o30' | 320 | |
| 65 | 290 | 41O | 82 | 63 | - | - | 37o30' | 320 | |
| 80 | 31O | 430 | 95 | 74 | - | - | 37o30' | 360 | |
| 1OO | 350 | 470 | 117 | 97 | - | - | 37o30' | 400 | |
| 125 | 400 | 500 | 143 | 123 | - | - | 37o30' | 400 | |
| 150 | 480 | 533 | 167 | 148 | - | - | 37o30' | 500 | |
注：PN4.0（40）阀门允许作为PN1.0（10）、PN1.6（16）、PN2.5（25）压力级选用
尼威截止阀相关产品:
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| J41F4衬氟截止阀 | J41F46衬氟截止阀 | YJ41W黄铜氧气截止阀 |
| BJ41H保温截止阀 | BJ45W直流式保温截止阀 | J61Y锻钢截止阀 |
