- NPT – ISO标准外螺纹锥形视镜
- 大多数系统没有排气或污染*
- 工作寿命长
- 无需维护
- 经过高安全系数测试，确保安全可靠
- 超过所有行业和MIL标准
- 在Rayotek美国工厂设计，制造和测试
- 超高压(UHP)测试可达20,000PSI或更高
NPT视窗符合ISO 7- 1:20 94标准，是一种低成本的解决方案，用于流体，火焰和气体观察，指示器和传感器的观察和观察端口。Rayotek NPT视镜窗采用玻璃，蓝宝石和其他透明材料密封在耐腐蚀的金属外壳中，形成密封的一体视镜。
Rayotek NPT视窗在极端热、化学、机械和压力环境下都非常坚固。它们在超高真空，高纯度，洁净室额定系统中也表现出色。
应用:
- 高压油箱
- 液位视图
- 液压液位指示器
- 用于炉膛、加热器和危险系统的火焰和爆炸观察口
- 超临界和石油研究系统
- 所有类型的制冷剂系统，包括基于二氧化碳的R744
- 用于制药和食品加工的卫生和FDA应用
- 用于深海，超高压和真空系统的简单照明窗
Rayotek Sight Windows可以可靠地满足并超越从工业到研究的许多应用的要求。窗户、外壳材料和密封方法的选择将有助于优化您应用的最佳视窗配置。
所有NPT都是按尺寸和配置分类的，以下列出部分尺寸
| Nominal Size | Pressure Rating* (psi/bar) | Window Material | Housing Material | Seal Type | Clear Aperture In. (mm) | Min. Operating Temperature ˚C (˚F) | Max. Operating Temperature ˚C (˚F) | Internal (IP), External (EP) or Vacuum (VAC) | Part Number | |
| 1/4 | 4000 (276) | Soda Lime | 316 Stainless | Fused | 0.34 (8.6) | -60 (-51) | 300 (572) | EP, IP, VAC | 101012 | |
| 1/4 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 0.34 (8.6) | -70 (-94) | 200 (392) | EP, VAC | 101045 | |
| 1/4 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 0.26 (6.6) | -70 (-94) | 200 (392) | IP | 101056 |
| Nominal Size | Pressure Rating* (psi/bar) | Window Material | Housing Material | Seal Type | Clear Aperture In. (mm) | Min. Operating Temperature ˚C (˚F) | Max. Operating Temperature ˚C (˚F) | Internal (IP), External (EP) or Vacuum (VAC) | Part Number | |
| 3/8 | 4000 (276) | Soda Lime | 316 Stainless | Fused | 0.43 (10.9) | -60 (-51) | 300 (572) | EP, IP, VAC | 101013 | |
| 3/8 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 0.43 (10.9) | -70 (-94) | 200 (392) | EP, VAC | 101046 | |
| 3/8 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 0.33 (8.3) | -70 (-94) | 200 (392) | IP | 101057 |
| Nominal Size | Pressure Rating* (psi/bar) | Window Material | Housing Material | Seal Type | Clear Aperture In. (mm) | Min. Operating Temperature ˚C (˚F) | Max. Operating Temperature ˚C (˚F) | Internal (IP), External (EP) or Vacuum (VAC) | Part Number | |
| 1-1/2 | 4000 (276) | Soda Lime | 316 Stainless | Fused | 1.10 (28.0) | -60 (-51) | 300 (572) | EP, IP, VAC | 101018 | |
| 1-1/2 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 1.10 (28.0) | -70 (-94) | 200 (392) | EP, VAC | 101051 | |
| 1-1/2 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 0.93 (23.6) | -70 (-94) | 200 (392) | IP | 101062 | |
| 1-1/2 | 150 (10.3) | Fused Quartz | 316 Stainless | Gasketed | 1.22 (31.0) | -200 (-328) | 900 (1652) | EP, IP, VAC | 101084 |
| Nominal Size | Pressure Rating* (psi/bar) | Window Material | Housing Material | Seal Type | Clear Aperture In. (mm) | Min. Operating Temperature ˚C (˚F) | Max. Operating Temperature ˚C (˚F) | Internal (IP), External (EP) or Vacuum (VAC) | Part Number | |
| 3 | 4000 (276) | Soda Lime | 316 Stainless | Fused | 2.13 (54.1) | -60 (-51) | 300 (572) | EP, IP, VAC | 101021 |
| 3 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 2.13 (54.1) | -70 (-94) | 200 (392) | EP, VAC | 101054 | |
| 3 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 1.89 (48.0) | -70 (-94) | 200 (392) | IP | 101065 | |
| 3 | 150 (10.3) | Fused Quartz | 316 Stainless | Gasketed | 2.00 (50.8) | -200 (-328) | 900 (1652) | EP, IP, VAC | 101087 |
| Nominal Size | Pressure Rating* (psi/bar) | Window Material | Housing Material | Seal Type | Clear Aperture In. (mm) | Min. Operating Temperature ˚C (˚F) | Max. Operating Temperature ˚C (˚F) | Internal (IP), External (EP) or Vacuum (VAC) | Part Number | |
| 4 | 4000 (276) | Soda Lime | 316 Stainless | Fused | 2.89 (73.4) | -60 (-51) | 300 (572) | EP, IP, VAC | 101022 | |
| 4 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 2.89 (73.4) | -70 (-94) | 200 (392) | EP, VAC | 101055 | |
| 4 | 4000 (276) | Sapphire | 316 Stainless | Bonded | 2.60 (66.0) | -70 (-94) | 200 (392) | IP | 101066 | |
| 4 | 150 (10.3) | Fused Quartz | 316 Stainless | Gasketed | 2.59 (65.8) | -200 (-328) | 900 (1652) | EP, IP, VAC | 101088 |
