日本 NISSHIN 日新计器 50 DAM-N02NV R1/4 0～1.6MPa 轴向耐震压力表

一、完整型号

二、核心技术参数

1. 执行标准：JIS B7505 波登管式压力表（日本工业标准）

2. 精度等级：±1.6% F.S.

3. 测量量程：0～1.6MPa（0～16bar）

4. 最小刻度：0.05MPa

5. 安装形式：轴向背出（无外边缘）

6. 连接螺纹：R1/4 (JIS 锥外螺纹，不可与 G1/4 直配)

7. 耐震结构：壳体内耐震波登管，耐震阻尼螺栓，可抑制指针抖动，适配压力脉动、振动频繁的设备

8. 材质明细

• 表壳：SPCC 电镀铬（金属外壳）

• 窗口：压克力

• 波登管 / 接头：黄铜 BsBM

• 内部机芯：铜合金

9. 使用温度：介质 / 环境 -15℃～+60℃

10. 最大安全压力：125% FS；破坏压力：≥180% FS

11. 防护等级：IP54（普通防溅，不可长期浸水）

12. 50 DAM-N02NV R1/4 1.6MPA日新计器NISSHIN小型耐震轴向压力表50DAM-N02NVR1/41.6MPa
    

三、介质兼容性 ⚠重要警示

1. 氧气、高纯氧系统（黄铜材质禁氧，无禁油处理）

2. 海水、酸碱腐蚀流体（无不锈钢接液）

3. 水乙二醇难燃液压液（会腐蚀黄铜波登管，选型需更换 N01H 不锈钢版本）

四、结构特点与优势

1. φ50 小型紧凑尺寸，适合机床、液压站、气动模组狭小安装空间

2. 轴向背接布局，面板内侧安装，盘面外露，设备柜体美观整洁

3. 耐震工艺：空压机、油泵、冲击负载下指针不晃动，延长机芯寿命

4. 日本原装 NISSHIN GAUGE，日系液压 / 气动设备原厂常用替换型号（大金、丰兴、昭和配套常用）

五、典型适用场景

• 通用机床液压系统、小型液压单元

• 空压机、气动增压回路

• 注塑机辅助油路、自动化设备油压监测

• 工程机械附属液压控制模块

六、采购 & 安装注意事项

1. 螺纹 R1/4 为锥螺纹，密封建议使用 PTFE 生料带，勿用力过度防止螺纹崩裂

2. 存在剧烈压力冲击场合，前端建议加装压力表缓冲器 / 阻尼接头

3. 介质温度＞60℃，必须加装冷凝圈，避免充油变质、机芯失效

4. 如需禁油、耐腐蚀，同壳体规格升级型号：50DAM-N01HV R1/4 1.6MPa（SUS316 不锈钢充油款）

5. 运输要求：充油压力表直立装箱，缓冲泡沫固定，避免横向长期放置导致油液渗漏

50 DAM-N02NV R1/4 1.6MPA日新计器NISSHIN小型耐震轴向压力表50DAM-N02NVR1/41.6MPa

NISSHIN KEIKI 50 DAM‑N02NV R1/4 1.6 MPa Miniature Vibration‑proof Axial Pressure Gauge

I. Basic Product Information

II. Key Performance Advantages

Japanese NISSHIN KEIKI 50 DAM‑N02NV R1/4 1.6 MPa Miniature Vibration‑proof Axial Pressure Gauge

NISSHIN KEIKI 50 DAM‑N02NV R1/4 0‑1.6 MPa Axial Vibration‑proof Pressure Gauge

III. Complete Model Designation

IV. Core Technical Specifications

• Applicable Standard: JIS B7505 Bourdon‑tube pressure gauge (Japanese Industrial Standard)

• Accuracy Class: ±1.6 % F.S. (Full Scale)

• Measuring Range: 0～1.6 MPa (0～16 bar)

• Minimum Scale Division: 0.05 MPa

• Mounting Form: Axial back‑connection (no front bezel)

• Connection Thread: R1/4 (JIS external tapered male thread; NOT directly interchangeable with G1/4 parallel thread)

• Vibration‑resistant Construction: Vibration‑damped bourdon tube plus internal damping screw suppresses pointer flutter for systems with pressure pulsation and frequent mechanical vibration.

Material Breakdown

• Case: SPCC steel with chrome‑plated finish (metal housing)
• Window: Acrylic
• Bourdon tube / Process connection: Brass BsBM
• Internal movement: Copper alloy
• Operating Temperature (Medium & Ambient): ‑15 ℃ ~ +60 ℃
• Maximum Safe Working Pressure: 125 % FS; Burst Pressure: ≥180 % FS
• Ingress Protection: IP54 (splash‑proof only; NOT for permanent submersion)

V. Media Compatibility ⚠IMPORTANT WARNING

1. Oxygen / high‑purity oxygen systems (brass wetted parts, no oil‑free cleaning treatment).

2. Seawater, acidic / alkaline corrosive fluids (no stainless‑steel wetted components).

3. Water‑glycol fire‑resistant hydraulic fluids (causes corrosion to brass bourdon tube. Select upgraded stainless‑steel variant N01H for such service).

VI. Construction Features & Benefits

• Compact Φ50 mm footprint, fits confined mounting spaces on machine tools, hydraulic power units and pneumatic modules.

• Axial back‑connection for panel‑recessed installation with exposed dial face; maintains clean cabinet aesthetics.

• Vibration‑damped performance: Stable pointer reading under air‑compressor, pump and shock‑load conditions; extends service life of internal movement.

• Original Japanese NISSHIN GAUGE; widely used OEM replacement part for Japanese‑brand hydraulic / pneumatic equipment (including Daikin, Toyooki, Showa systems).

VII. Typical Application Scenarios

• Hydraulic circuits of general‑purpose machine tools, compact hydraulic power units

• Air compressors, pneumatic booster circuits

• Auxiliary oil circuits for injection‑molding machines, oil‑pressure monitoring for automated equipment

• Auxiliary hydraulic control modules for construction machinery

VIII. Sourcing & Installation Guidelines

1. R1/4 is a tapered pipe thread. Use PTFE sealing tape for joint sealing. Do NOT over‑torque to prevent thread cracking.

2. Where severe pressure shock occurs, install a pressure gauge snubber / damping fitting upstream.

3. If process medium temperature exceeds 60 ℃, a syphon loop must be fitted to prevent fill‑liquid degradation and premature movement failure.

4. For oil‑free service or corrosive media, use the upgraded same‑form‑factor model: 50DAM‑N01HV R1/4 1.6 MPa (SUS316 stainless‑steel liquid‑filled version).

5. Shipping Requirement: Liquid‑filled pressure gauges shall be packed upright and secured with foam cushioning. Avoid prolonged horizontal storage which may cause liquid leakage.

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