進口法蘭閘閥性能穩(wěn)定-德國洛克

 

進口法蘭閘閥結構特點:

1.結構緊湊、造型美觀、全通徑流道、流阻系數(shù)小。

2.密封副材料配對合理，使用壽命長。

3.閘板結構形式為：彈性鍥形單閘板或剛性鍥形單閘板。閥桿表面經(jīng)氮化處理，具有良好的抗腐蝕性、抗摩擦性。填料采用四氟材料，密封可靠，操作靈活，啟閉力矩小。

4.可選用各種配管法蘭標準及法蘭密封面型式，還可選用手動、蝸輪傳動、電動、氣動、液動等各種驅動方式，滿足用戶不同需求 結構緊湊、造型美觀、全通徑流道、流阻系數(shù)小。

5.符合國內外先進標準的要求，密封可靠，性能優(yōu)良，造型美觀。

6.300LB口徑以上閘閥閘板與閥座密封面用鐵基合金堆焊或司太立（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。

7.閥桿經(jīng)調質和表面氮化處理，有良好的搞腐蝕性和抗擦傷性。

8.采用楔式彈性閘板結構，中大口徑設置滾動軸承，摩擦力小、啟閉輕松。

9.可采用各種配管法蘭標準及法蘭密封面型式，滿足各種工程需要及用戶要求。

                                                                                 

進口法蘭閘閥規(guī)格參數(shù)：

閥體材料：WCB、304、316

閥門口徑：DN15-600

閥門壓力：PN16-PN250

連接標準：ASME B16.10、DIN2501

控制方式：手動、電動、氣動

密封材料：304

工作溫度：-20℃至+150℃(特殊定做+450°)

 

進口法蘭閘閥產(chǎn)品簡介：

德國洛克《DE LOCKE》進口電動閘閥簡單地說就是用電動執(zhí)行器控制閥門,從而實現(xiàn)閥門的開和關。其可分為上下兩部分，上部分為電動執(zhí)行器，下半部分為閥門。

電動閘閥分兩種，一種為角行程電動閘閥：由角行程的電動執(zhí)行器配合角行程的閥使用，實現(xiàn)閥門90度以內旋控制管道流體通斷；另一種為直行程電動閘閥：由直行程的電動執(zhí)行器配合直行程的閥使用，實現(xiàn)閥板上下動作控制管道流體通斷。通常在自動化程度較高的設備上配套使用,本閥水平安裝調節(jié)精度佳。

Introduction of imported flange gate valve products:
German Locke "de Locke" imported electric gate valve is simply to use electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided into two parts, the upper part is the electric actuator, the lower part is the valve.
There are two kinds of electric gate valves, one is angular stroke electric gate valve: the angular stroke electric actuator is used with the angular stroke valve to realize 90 degree internal rotation of the valve to control the pipeline fluid on-off; the other is straight stroke electric gate valve: the straight stroke electric actuator is used with the straight stroke valve to realize the valve plate up and down action to control the pipeline fluid on-off. It is usually used on the equipment with high degree of automation, and the valve has good horizontal installation and adjustment accuracy.
                                                                                    

進口法蘭閘閥設計說明:

1，閥蓋墊片形式

Class150閘閥采用不銹鋼石墨復合墊片；Class300閘閥采用不銹鋼石墨纏繞墊片；Class600閘閥可用不銹鋼石墨纏繞墊片也可采用金屬環(huán)墊片；Class900閘閥采用金屬環(huán)墊片；Class1500/Class2500閘閥采用閘閥采用自壓密封金屬環(huán)。

2，閥體和閥蓋連接形式

栓接閥蓋BB，體蓋焊接BW，自壓密封式閥蓋PS

3,彈簧加載填料沖擊系統(tǒng)

可根據(jù)客戶要求，采用彈簧加載填料沖擊系統(tǒng)提高填料密封的持久性和可靠性。

4，閘板設計形式

NPS≤2in（DN50）可采用剛性閘板；NPS≥2in（DN50）可采用彈性性閘板

5，倒密封設計

閘閥采用倒密封設計，通常情況下，碳鋼閘閥的閥座設計采用分離式倒密封結構，不銹鋼閘閥的倒密封式直接加工或者是焊后加工。當閥門全開時，倒密封的密封面非?？煽俊?

6，閥桿設計

閘閥閥桿采用整體鍛造工藝制成，閥桿經(jīng)調質及表面氮化處理，有良好的抗腐蝕性、抗擦傷性和耐磨性 ,按照標準要求確定最小直徑，閥桿和閘板采用T型結構連接。

7，閥座設計

碳鋼閘閥閥座通常采用鍛鋼材料，閥座密封材料可根據(jù)用戶要求噴焊硬質合金?？筛鶕?jù)客戶要求采用分離式螺紋旋入式閥座、焊接閥座及本體直接加工閥座。

8,旁通閥設計結構

帶有旁通閥的閘閥在開啟前應先打開旁通閥（以平衡進出口的壓差及減小開啟力 )。

Design description of inlet flange gate valve:
1. Valve cover gasket type
Class150 gate valve adopts stainless steel graphite composite gasket; class300 gate valve adopts stainless steel graphite spiral wound gasket; CLASS600 gate valve adopts stainless steel graphite spiral wound gasket or metal ring gasket; class900 gate valve adopts metal ring gasket; class1500 / class2500 gate valve adopts self sealing metal ring.
2. Connection form of valve body and valve cover
Bolted bonnet BB, body bonnet welded BW, self pressure sealing bonnet PS
3. Spring loaded packing impact system
According to customer requirements, spring loaded packing impact system can be used to improve the durability and reliability of packing seal.
4. Design form of RAM
For NPS ≤ 2in (DN50), rigid RAM can be used; for NPS ≥ 2in (DN50), elastic RAM can be used
5. Inverted seal design
The gate valve adopts the inverted seal design. Generally, the valve seat of carbon steel gate valve adopts the separated inverted seal structure, and the inverted seal type of stainless steel gate valve is processed directly or after welding. When the valve is fully open, the sealing surface of the inverted seal is very reliable.
6. Valve stem design
The valve stem of gate valve is made by integral forging process. The valve stem has good corrosion resistance, scratch resistance and wear resistance after quenching and tempering and surface nitriding treatment. The minimum diameter is determined according to the standard requirements. The valve stem and gate are connected by T-shaped structure.
7. Valve seat design
The valve seat of carbon steel gate valve is usually made of forged steel, and the sealing material of valve seat can be spray welded with cemented carbide according to the requirements of users. According to the customer's requirements, we can use separate screw in valve seat, welded valve seat and body direct processing valve seat.
8. Design structure of bypass valve
The gate valve with bypass valve should be opened before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).
                                                                               

進口法蘭閘閥典型應用：

進口不銹鋼閘閥廣泛用于造紙、石油、化工、冶金、電力、制藥、化肥、環(huán)保、廢氣凈化裝置、蒸汽設備、導熱油、造船業(yè)、輕工等工業(yè)部門的自動化控制系統(tǒng)中

Typical application of imported flange gate valve:
The imported stainless steel gate valve is widely used in the automation control system of papermaking, petroleum, chemical industry, metallurgy, electric power, pharmaceutical, chemical fertilizer, environmental protection, waste gas purification device, steam equipment, heat transfer oil, shipbuilding, light industry and other industrial departments
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