日韩国产高清视频在线_aa国产成人_紧缚捆绑精品一区二区_五月婷婷综合色_阿v视频在线_国产精品欧美日韩_污视频网站在线_欧美激情极品视频_欧美18一12sex性处hd_欧美v国产在线一区二区三区

主要零件和材質 Main parts and materials

產品結構特點 Construction features

       1、產品按國家標準GB/T 12236設計制造，結構合理，密封可靠，性能優良。

       2、閥瓣和閥座的密封面用鐵基合金或司太立（stellite）鈷基硬質合金堆焊而成，耐磨、耐高溫、耐腐蝕，抗擦傷性能好，使用壽命長。

       3、可采用各種配管法蘭標準及法密封面型式，滿足各種工程需要及用戶要求。

       4、閥體材料品種齊全，墊片可根據實際工況或用戶要求合理選配，能適用于各種壓力、溫度及介質工況。

       5、閥瓣圍繞閥座外的銷軸旋轉，減少關閉時發生猛烈沖擊。

       6、銷軸與閥瓣連接采用內裝式結構，不存在外泄漏點，使用更可靠。

1. The products are manufactured according to national standard GB/T 12236, with reasonable structure, reliable sealing and excellent performance.

2. The sealing surface of disc and seat is made of ferrous alloy or stellite (stellite) cobalt carbide, which is durable, high temperature resistant, corrosion resistant, good abrasion resistance and long service life.

3. All kinds of piping flange standard and sealing cover type can be used to meet various engineering needs and user requirements.

4. The valve body material is complete, the gasket can be selected according to the actual working conditions or users, and can be applied to various pressure,temperature and medium conditions.

5. The disc revolves around the pin shaft outside the seat and reduces the impact when it is closed.

6. The pin shaft and disc connection are built in an internal structure, and there is no leakage leakage point, and the use is more reliable.

產品特征 Spericfications

適用介質：水、氣、油品、天然氣和酸堿腐蝕性介質

適用溫度：-196~450℃

驅動方式：手動、氣動、電動等

公稱壓力：1.0~6.4MPa

公稱通徑：DN50~600mm

Applicable media: water, gas, oil, gas and acid and alkali corrosive medium

Applicable temperature: -196~450℃

Driver: manual, pneumatic, electric, etc

Nominal pressure: 1.0~6.4MPa

Nominal size: DN50~600mm

技術規范 Technical specification

試驗壓力 Test prssure

止回閥結構長度和外接尺寸 Main connection dimensions