| 產地類別 |
進口 |
價格區(qū)間 |
面議 |
| 應用領域 |
環(huán)保,石油,能源,包裝/造紙/印刷,綜合 |
AT-G3/8-75X10kPa 20kPa 30kPa 50kPa 100kPa西野計器NISHINO不銹鋼微壓計壓力表過壓防止型。內置機械式過壓限位裝置：量程 1.5～3 倍瞬時超壓自動鎖止膜盒元件，避免微壓敏感膜盒過載變形報廢，微壓工況最容易出現瞬間竄壓，普通微壓表極易損壞，本款可耐受短時沖擊超壓。泄壓復位：超壓消除后指針自動回歸量程，無需返廠維修；過壓保護值按 JIS B7505 壓力表
AT-G3/8-75X10kPa 20kPa 30kPa 50kPa 100kPa西野計器NISHINO不銹鋼微壓計壓力表過壓防止型
NISHINO 西野計器 AT-G3/8-75 不銹鋼過壓防止型微壓壓力表
型號：AT-G38-75×10/20/30/50/100kPa（5種壓力值kPa正壓微壓計）
AT-G38-75X10kPa 20kPa 30kPa 50kPa 100kPa西野計器NISHINO不銹鋼微壓計壓力表過壓防止型
NISHINO 西野計器 AT-G3/8-75 不銹鋼過壓防止型微壓壓力表
型號：AT-G38-75×10/20/30/50/100kPa（5種壓力值kPa正壓微壓計）
一、產品核心特點（過壓防止 + 不銹鋼本體，JIS 標準）
1、過壓防護結構（核心賣點）
內置機械式過壓限位裝置：量程 1.5～3 倍瞬時超壓自動鎖止膜盒元件，避免微壓敏感膜盒過載變形報廢，微壓工況最容易出現瞬間竄壓，普通微壓表極易損壞，本款可耐受短時沖擊超壓。
泄壓復位：超壓消除后指針自動回歸量程，無需返廠維修；過壓保護值按 JIS B7505 壓力表規(guī)范出廠標定。
量程覆蓋：0～1kPa~0～50kPa（含負壓 /±kPa），全量程標配過壓防止結構，專用于低壓微氣體測量。
2、不銹鋼材質配置（防腐耐用）
表殼：SUS304 不銹鋼密閉殼體（電解拋光），防水防塵，潮濕、酸堿腐蝕工況可用；
接液敏感膜盒 / 接頭：SUS316L 不銹鋼，可測弱腐蝕性干燥氣體，區(qū)別于銅機芯普通微壓表；
表盤規(guī)格：標準 Φ75mm，安裝螺紋G3/8（JIS 管用螺紋），徑向 / 背裝兩種安裝方式。
3、精度與實用配置
精度 **±2.0% FS（JIS 精度等級）**，微壓段刻度細密，最小分度 0.1kPa，讀數精準；
標配外置零點微調旋鈕，現場溫度漂移、安裝偏移可就地歸零校正；
可選甘油充油防震款，適配管路脈動、設備震動環(huán)境，指針無抖動；
全系列符合JIS、ISO、DIN 螺紋通用標準，接頭可兼容歐美管路。
二、細分應用場景
1、暖通凈化 & 潔凈車間（主力場景）
潔凈廠房、醫(yī)藥無塵室、電子無塵車間：監(jiān)測房間正負壓、高效濾網壓差，壓差升高代表濾網堵塞，及時提醒更換；手術室負壓隔離監(jiān)測。
2、燃燒 / 燃氣熱能設備
燃氣燃燒機、烘箱、鍋爐、瓦斯調壓站：天然氣 / 液化氣低壓供氣壓力監(jiān)控，瞬時氣壓沖高時過壓結構保護儀表，杜絕儀表失效造成供氣失控。
3、環(huán)保廢氣 & 除塵系統
鍋爐煙道風壓、除塵風機進出口壓差、廢氣處理管路：通過微壓差判斷風機故障、濾袋堵塞，環(huán)保設備低壓測壓。
4、食品 / 醫(yī)藥制程
釀造、乳制品、制藥無菌管路：無菌氣體吹掃壓力、罐內微正壓監(jiān)控，SUS316 接液滿足食品醫(yī)藥潔凈防腐需求。
5、輕工與設備配套
涂裝烘干線、包裝充氣設備、空壓機低壓輔氣回路、實驗室氣體管路微壓 / 氣密性檢測。
| 項目 | 規(guī)格詳情 |
|---|
| 精度等級 | ±1.6% FS（工業(yè)微壓 1.6 級） |
| 接液材質（不銹鋼款） | 接頭 SUS304、波登管 SUS304不銹鋼 |
| 表殼 | 不銹鋼殼體 SUS304 |
| 視窗 | 亞克力 |
| 過壓結構 | 內部限位擋塊，瞬時超壓 1.5 倍量程不會拉壞波登管 |
| 使用溫度 | -5℃～+45℃ |
| 安裝方式 | 徑向底部直裝 |
| 適用介質 | 弱腐蝕性氣體、潮濕氣源、弱酸水汽（普通黃銅款僅潔凈空氣 / 清水） |
AT-G3/8-75X10kPa 20kPa 30kPa 50kPa 100kPa西野計器NISHINO不銹鋼微壓計壓力表過壓防止型
四、（5種壓力值kPa正壓微壓計）量程明細
0～10kPa、0～20kPa、0～30kPa、0～50kPa、0～100kPa
推薦使用區(qū)間：量程 30%～70%，延長儀表壽命
五、產品特點
過壓防止：微壓表通病易過載報廢，西野內置限位結構，氣源瞬間沖壓保護機芯
不銹鋼定制：相比黃銅款耐水汽、弱腐蝕，化工廢氣、水處理、腐蝕性通風管路專用
日標原廠：NISHINO 西野全日本產，燃燒機、燃氣調壓、暖通風壓、小型氣動設備標配
六、選型備注
潔凈無腐蝕工況選黃銅標準款；潮濕 / 微量腐蝕介質選SUS 不銹鋼款
氣源脈動沖擊前端加裝緩沖器，避免指針抖動
AT-G3/8-75X10kPa 20kPa 30kPa 50kPa 100kPa西野計器NISHINO不銹鋼微壓計壓力表過壓防止型
AT-G3/8-75, Ranges: 10kPa, 20kPa, 30kPa, 50kPa, 100kPa | NISHINO Low Pressure Gauge, Stainless Steel with Overpressure Protection
NISHINO AT-G3/8-75 Stainless Steel Low Pressure Gauge with Built-in Overpressure Prevention
Model No.: AT-G3/8-75, Available Ranges: 10/20/30/50/100kPa (5 positive-pressure low-range options)
I. Core Product Features (Overpressure Protection + Stainless Steel Construction, Compliant with JIS Standards)
1. Built-in Overpressure Protection (Key Advantage)
Equipped with an internal mechanical overpressure limiting mechanism: the sensing capsule locks automatically under instantaneous overpressure of 1.5~3 times full scale to prevent permanent deformation or damage of the sensitive low-pressure capsule. Ordinary low-pressure gauges are prone to breakdown from sudden pressure surges commonly seen in low-pressure applications, while this model withstands short-term pressure spikes.
Automatic reset after pressure relief: the pointer returns to original measuring range once excess pressure subsides; no factory repair required. Overpressure threshold is factory-calibrated per JIS B7505 standard for pressure gauges.
Available measuring ranges: 0~1kPa up to 0~50kPa (including vacuum and ±kPa compound ranges). All ranges come with standard overpressure protection, specially designed for low-pressure dry gas measurement.
2. Corrosion-resistant All-stainless Construction
Case: Sealed SUS304 stainless steel with electrolytic polishing, waterproof and dustproof for humid, acidic and alkaline corrosive working environments.
Wetted capsule & process connection: SUS316L stainless steel, compatible with mildly corrosive dry gas; superior to conventional brass-cased low-pressure gauges.
Dial size: Standard ?75mm; process thread: G3/8 (JIS standard pipe thread); two mounting options: bottom radial mount & back mount.
3. Accuracy & Practical Configurations
Accuracy:
±2.0% FS (JIS accuracy class) with finely graduated scale for low-pressure segments, minimum scale division at 0.1kPa for precise readings.
External zero-adjustment knob as standard, enabling on-site zero calibration to offset temperature drift and installation-induced pointer offset.
Glycerine-filled dampened version optional for piping pulsation and mechanical vibration conditions to eliminate pointer oscillation.
Full product line complies with JIS, ISO and DIN thread standards for seamless compatibility with European & American piping fittings.
II. Typical Application Fields
1. HVAC & Cleanroom Systems (Primary Application)
Clean manufacturing workshops, pharmaceutical sterile rooms and electronics cleanrooms: monitoring room positive/negative pressure and differential pressure across HEPA filters; rising differential pressure signals clogged filter for timely replacement; negative-pressure monitoring for surgical isolation rooms.
2. Combustion & Gas Thermal Equipment
Gas burners, industrial ovens, boilers and gas pressure regulating stations: low supply pressure monitoring for natural gas and LPG; built-in overpressure safeguard protects instruments against sudden gas pressure surge to avoid gas supply malfunction caused by gauge failure.
3. Environmental Exhaust & Dust Collection Systems
Boiler flue gas draft pressure, differential pressure across inlet/outlet of dust removal fans and exhaust treatment pipelines: differential pressure readings detect fan malfunction or bag filter clogging for low-pressure measurement on environmental protection equipment.
4. Food & Pharmaceutical Production Lines
Brewing, dairy and pharmaceutical sterile piping: monitoring sterile purge gas pressure and tank slight positive pressure; SUS316 wetted parts satisfy hygienic and anti-corrosion requirements for food & pharmaceutical industries.
5. Light Industry & General Equipment Matching
Coating drying tunnels, inflation packaging machines, low-pressure auxiliary air loops for air compressors, and gas tightness / low-pressure testing for laboratory gas pipelines.
III. Technical Specifications
| Item | Specification |
|---|
| Accuracy Class | ±1.6% FS (Class 1.6 industrial low-pressure grade) |
| Wetted Material (Stainless Steel Version) | Connection: SUS304; Bourdon Tube: SUS304 stainless steel |
| Case Material | SUS304 stainless steel |
| Window | Acrylic |
| Overpressure Structure | Internal mechanical stopper; Bourdon tube intact under 1.5×FS instantaneous overpressure |
| Operating Temperature | -5℃ ~ +45℃ |
| Mounting Style | Bottom radial direct mount |
| Compatible Medium | Mildly corrosive gas, humid air, weak acid vapor; standard brass version only for clean dry air / fresh water |
IV. Available Positive Pressure Ranges (5 Options)
0~10kPa, 0~20kPa, 0~30kPa, 0~50kPa, 0~100kPa
Recommended working range: 30%~70% of full scale to extend service lifeV. Product Highlights
Overpressure Prevention: Conventional low-pressure gauges easily fail from overload; built-in internal stop structure of NISHINO safeguards internal movement against instantaneous air pressure spike.
Custom Stainless Steel Build: Outperforms brass type in moisture and mild corrosion resistance, ideal for chemical waste gas, water treatment and corrosive ventilation duct applications.
Original Japanese Manufacture by NISHINO: Made-in-Japan OEM gauge standard for gas burners, gas pressure regulation, HVAC draft monitoring and compact pneumatic equipment.
VI. Selection Guidance
Standard brass model: for dry non-corrosive clean working conditions
SUS stainless steel model: for humid service or medium with trace corrosive components
Install pulsation dampener upstream at piping inlet for fluctuating gas supply to prevent pointer vibration
Model Reference: AT-G3/8-75, Ranges:10kPa/20kPa/30kPa/50kPa/100kPa | NISHINO Stainless Steel Low Pressure Gauge with Overpressure Protection.
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