G Series General Pneumatic Pressure Gauge

Brand: SOLH by Richge Technology

Product Positioning

     SOLH G series is standard pressure gauge dedicated to pneumatic systems for compressed air pressure measurement, divided into standard basic type and limit indicator type with color warning ring. Dial outer diameter ranges φ15 ~ φ63, pressure span covers 0.2~1.5MPa with standard accuracy ±3% F.S. Two mounting structures available: rear thread G model for panel mounting and side thread GA model for direct pipeline installation.

Series Size & Dimension Specification (Outer Diameter × Connection Thread)

     -- G15: φ15, M5 internal thread / R1/8; ultra-miniature, matched with micro pneumatic valves

     -- G27: φ26, R1/16 / R1/8; compact slim body for confined narrow installation space

     -- G36 / GA36: φ37.5, R1/8; mainstream standard general-purpose model

     -- G46 / GA46: φ42.5, R1/8 / R1/4; most widely used, optional limit indicator ring

     -- G53-L: φ51, R1/8 / R1/4; medium large dial with red-green limit warning ring

     -- G63-L: φ63.4, R1/8 / R1/4; super large dial, clear reading from long distance

Model Naming Rule & Examples

  1. Naming Format

     -- G / GA + Size Code + Optional Suffix L + Pressure Range Code + Thread Code

     -- Suffix L = Equipped with red-green limit indicator ring

  2. Model Examples

     -- G46-10-02:

         G46 = φ42.5 rear thread model | 10 = 1.0MPa range | 02 = R1/4 thread

     -- GA36-10-01:

        GA36 = φ37.5 side thread model | 10 = 1.0MPa range | 01 = R1/8 thread

     -- G36-L-10-01

        With red-green limit warning ring L, φ37.5 rear thread, 1.0MPa, R1/8

  3. Code Definition

     -- Pressure Range Code:

         2 = 0~0.2MPa

         4 = 0~0.4MPa

        10 = 0~1.0MPa

        15 = 0~1.5MPa

    -- Thread Code

        01 = R1/8

        02 = R1/4

        R1 = R1/16

        M5 = M5×0.8 metric internal thread3. 

Universal Core Technical Parameters

  1. Measurable Medium: Compressed air; oil-free & copper-free wetted part versions optional for clean process

  2. Standard Pressure Ranges: 0~0.2 / 0~0.4 / 0~1.0 / 0~1.5MPa

  3. Accuracy Grade: Standard ±3% F.S.; mini G15 & G27 ±5% F.S.

  4. Material Configuration:

     -- Housing: Zinc alloy / nickel plated die-cast aluminum

     -- Window Cover: Impact resistant polycarbonate

     -- Connection fitting: Brass; copper-free alternative available

  5. Operating Temperature: -5 ~ +60℃ (medium without icing)

  6. Mounting Classification

     -- G type: Rear thread, designed for embedded panel installation

     -- GA type: Side thread, direct inline pipeline mounting

L Model with Limit Indicator Ring

     -- Red ring: Upper limit / high pressure alarm threshold

     -- Green ring: Normal safe working pressure interval

     -- White pointer: Real-time dynamic air pressure value

     -- Core Advantage: Intuitive visual state judgment without careful scale reading, ideal for assembly lines and centralized multi-point monitoring cabinets

Step-by-Step Selection Guide

  1. Miniature & narrow limited space: Select G15 / G27 (φ15 / φ26)

  2. Ordinary standard pneumatic circuits: G36 / G46 (φ37.5 / φ42.5)

  3. Visual pressure warning required: G36-L / G46-L with color limit ring

  4. Long-distance remote reading demand: Large dial G53-L / G63-L (φ51 / φ63)

  5. Installation mode distinction

     -- Direct pipeline mounting → GA side thread series

     -- Equipment control panel embedded mounting → G rear thread series

Popular Standard Model Quick Reference

     -- G27-10-R1: φ26 dial, 1.0MPa range, R1/16 thread

     -- G36-10-01: φ37.5 rear thread, 1.0MPa, R1/8

     -- G46-10-02: φ42.5 rear thread, 1.0MPa, R1/4

     -- G46-L-10-02: φ42.5 rear thread, red-green limit ring, 1.0MPa, R1/4

One Sentence Summary

     SOLH G series pneumatic pressure gauge covers φ15~φ63 full dial sizes with rear/side thread two mounting styles, optional L type color limit warning ring, 0.2~1.5MPa complete pressure ranges and copper-free clean versions, the standard air pressure monitoring accessory for all industrial automation pneumatic circuits.