止回閥—上海祝成閥門系列產品：高壓止回閥。高溫止回閥。高壓高溫止回閥。進口止回閥、燃氣限流閥H145。旋啟式止回閥H44H。升降式止回閥H41H。立式止回閥H42H/N。角式止回閥H63Y/H83Y。高壓止回閥H42/H62H。高溫止回閥H42/62Y。Y型止回閥H65Y。對夾式止回閥H71/72/74/76/78/79。對夾超薄型止回閥H74X/H。消聲止回閥HC41X。靜音止回閥HC42T/X/H(DRVZ)。橡膠瓣止回閥HH44X(SFCV)。蝶式止回閥。微阻緩閉止回閥HH44X/HH46H/W,HH48H/X,HH49H/X。球形止回閥HQ41/HQ44/HQ45X。天燃氣止回閥H41/42N。法蘭止回閥。內螺紋止回閥H11W。保溫止回閥BH44H、BH41H。自密封止回閥H42Y/H62Y。截止止回多功能閥H48H。襯膠止回閥H44J/H41J/H40J、襯氟止回閥H41F/H44F/H42F/H40F。塑料止回閥H41F/H44F/H61F-6S。日標止回閥、德標止回閥、美標止回閥H44W。支耳式止回閥。鑄鐵止回閥、鑄鋼止回閥、鍛鋼止回閥、鉻鉬鋼止回閥、不銹鋼止回閥。底閥H42H、水上底閥。拍門。閥體的材質有: 鑄鐵、鑄鋼、不銹鋼、鍛鋼、鉻鉬鋼、鉻鉬釩鋼。最高工作壓力1.6-32MPA(美標從150LB-2500LB，日標從10K-64K)。工作溫度-20°C- 550°C，閥門口徑從DN15-DN600。連接方式:法蘭、絲口或焊接。適用介質:水、油品、氣、蒸汽等。上海祝成閥門源自日本技術