主要零件和材質 Main parts and materials

產(chǎn)品結構特點 Construction features

1、符合GB標準的要求，結構合理、密封可靠、性能良好、造型美觀。

2、材料品種齊全、填料、墊片可根據(jù)用戶不同要求合理選配，能適用于各種壓力、溫度及介質工況，高溫閥門耐壓部件選用優(yōu)質耐熱合金鋼制造，密封面采用司太立（stellite）鈷基硬質合金，安全可靠，性能穩(wěn)定，使用壽命長。

3、閥體閥蓋結構設計合理，壁厚經(jīng)嚴格控制及檢測符合國家標準GB12234及美國標準ANSI B16.34要求，強度高、剛性好、流阻小。

4、采用楔式彈性閘板結構，經(jīng)整體精鑄制成，造型精美，密封性能好。

5、閥桿采用耐熱合金鋼，經(jīng)鍛粗和調質及表面氮化處理，有良好的綜合力學性能和抗腐蝕性，抗擦傷性。

6、閘閥全部采用倒密封結構，可在不停機工況下進行維修或增改填料。

7、閥桿螺母采用內函式結構，與支架連接部位設置滾珠軸承，轉動力矩小、啟閉輕松。

8、根據(jù)用戶或工程要求合理選擇連接形式，多種操作方式可滿足不同的使用要求。

1. Accord with GB standard, reasonable structure, reliable sealing, good performance and beautiful appearance.

2. Variety complete, packing and gasket materials reasonable matching, can according to customer's request to apply to all kinds of pressure, temperature and medium conditions, high pressure valve selects high quality alloy steel manufacturing,sealing surface using department too vertical (stellite) cobalt-based hard alloy,safe and reliable, stable performance and long service life.

3. The valve bonnet structure is reasonable,  the wall thickness is strictly controlled and the test conforms to the national standard GB12234 and the American standard ANSI B16.34, the strength is high, the rigidity is good, the flow resistance is small.

4. Using wedge-type elastic gate structure, it is made of whole cast, with fine design and good sealing performance.

5. The stem is made of heat-resistant alloy steel with good mechanical properties and corrosion resistance and abrasion resistance.

6. Gate valves shall be fully resealed, which may be repaired or modified in unstopped working conditions.

7. The stem nut adopts the internal function structure, the ball bearing is set up with the connecting part of the bracket, the torque is small and the lifting is easy.

8. According to the requirements of users or engineering, the connection form should be reasonably selected, and various operation modes can meet different usage requirements.

產(chǎn)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：-196~540℃

驅動方式：手動、氣動、電動等

公稱壓力：20.0~32.0MPa

公稱通徑：2"~20"

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

Applicable temperature: -196~540℃

Driver: manual, pneumatic, electric, etc

Nominal pressure: 20.0~32.0MPa

Nominal size: 2"~20"

技術規(guī)范 Technical specification

試驗壓力 Test prssure

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