GPA型低噪音內嚙合齒輪泵是采用國外先進設計制造技術生產的。產品分單泵、雙聯泵兩種，單泵排量為1.76-63.6mL/r，有九種規格根據不同排量可組成多種規格的雙聯泵。該泵額定壓力為6.3MPa、10MPa二種可供用戶選擇，轉速為600-3000r/min，并可根據需要配置可調節的溢流閥。產品結構簡單，運轉平穩、壓力脈動小、噪音低、工作可靠。該泵用于機床、船舶、注塑、起重、壓鑄等機械的液壓系統。

單聯齒輪泵
GPA1-1-E-20R6.3
GPA1-2-E-20R6.3
GPA1-4-E-20R6.3
GPA2-6-E-20R6.3
GPA2-10-E-20R6.3
GPA2-16-E-20R6.3
GPA3-25-E-20R6.3
GPA3-40-E-20R6.3
GPA3-63-E-20R6.3

雙聯齒輪泵
GPA1-1-1-E-20R6.3
GPA1-2-2-E-20R6.3
GPA1-4-4-E-20R6.3
GPA2-6-6-E-20R6.3
GPA2-10-10-E-20R6.3
GPA2-16-16-E-20R6.3
GPA3-25-25-E-20R6.3
GPA3-40-40-E-20R6.3
GPA3-63-63-E-20R6.3

單聯帶溢流閥齒輪泵
GPA1-1-EK1-20R
GPA1-2-EK1-20R
GPA1-4-EK1-20R
GPA2-6-EK1-20R
GPA2-10-EK1-20R
GPA2-16-EK1-20R
GPA3-25-EK1-20R
GPA3-40-EK1-20R
GPA3-63-EK1-20R

單聯帶溢流閥齒輪泵
GPA1-1-EK2-20R
GPA1-2-EK2-20R
GPA1-4-EK2-20R
GPA2-6-EK2-20R
GPA2-10-EK2-20R
GPA2-16-EK2-20R
GPA3-25-EK2-20R
GPA3-40-EK2-20R
GPA3-63-EK2-20R