(焊接，法蘭，對夾)進口三偏心金屬硬密封蝶閥性能描述 Performance description

(焊接，法蘭，對夾)三偏心金屬硬密封蝶閥采用了徑向動平衡密封系統(tǒng)，通過優(yōu)化設計，蝶板的進出口兩側受力近似平衡，閥門達到進出口雙向可靠的密封性能的同時，有效降低了閥門的開啟力矩 RETZ The tri eccentric metal hard seal butterfly valve adopts the "radial dynamic balance sealing system" with the national patent technology. Through optimization design, the force on both sides of the inlet and outlet of the butterfly plate is approximately balanced. The valve achieves the two-way reliable sealing performance at the inlet and outlet, and effectively reduces the opening torque of the valve

三維立體圖與零件名稱3D DIAGRAM & PART NAMES OF THE BUTTERFLY VALVE

技術要求Applicable Standards

Design Code 設計標準:API 609 Catalog B & ASME B16.34

Face to face 結構長度:API 609 Category B, ANSI B16.10

ISO 5752 & BS EN 558 Series 3 / 13 / 14 / 19

DIN 3202 F4 / BS 515

Connection Standard 連接標準:NPS 2"~24" ASME B16.5

Above 24" ASME B16.47 A / B

Testing / Inspection 試驗與檢驗:API 598

規(guī)格尺寸 Size : 2～40"

公稱壓力 Nominal pressure：PN10～160, CL150～900LB

適應溫度 Applicable temperature ：-40～425℃

(焊接，法蘭，對夾)進口三偏心金屬硬密封蝶閥偏心結構說明Triple eccentric structure

第一個偏心: 閥桿偏離閥座中心線, 從而在整個閥座上擁有一個完整的密封接觸 The shaft is offset behind the seat axis to allow complete sealing contact around theentire seat

第二個偏心: 閥桿偏離管路及閥門中心線. 可以減少閥門在開關過程中, 對閥座與密封面之間的摩擦 The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve

第三個偏心: 閥座的圓錐度設計消除了在閥門開啟和關閉過程中的磨擦,使密封圈的密封力均勻的分布在閥座上 The seat cone axis is offset from the shaft centerline to eliminate frictionduring closing and opening and to achieve uniform compressive sealing around the entire seat.

多種密封圈結構

1. 金屬碰金屬 Metal x Metal

適用于: 高溫和低溫工礦, 高壓差, 高流速, 帶顆粒的流質 Application: High & Low Temperature, High Pressure Difference, High Flow Speed, Particle Medium

特點: 嚴格的制造工藝控制, 成本較高. 密封圈和閥座噴涂司太力合金或滲氮, 鍍鉻等特殊硬化處理, 經過精密的研磨, 保證了密封副的硬度和使用壽命 retz品牌 Feature: Strict manufacturing process control with a high cost. Seal Ring and Seat Ring both overlay 

with Stellite alloy, Nitriding, Chrome plated with precision grinding to ensure the seal system’s hardness and cycle life

2. 多層次密封圈(含纏繞網) Multi-Layer Laminated Seal (with Spiral Wound Gasket)

適用于: 中高溫和低溫工礦, 中等壓差, 中等流速, 較純凈的流質 Application: Medium High & Low Temperature, Middle Pressure Difference, Middle Flow Speed, 

Pure Medium

特點: 成熟的制造工藝, 成本較低; 多層次密封圈由不銹鋼和石墨夾層制成, 石墨是石墨顆粒壓制而成, 在石墨層的內部增加不銹鋼鋼網, 通過網狀的鋼絲緊緊鎖住; 石墨不易被沖刷, 提高了使用壽命 Feature: Mature manufacturing technology process control with a low cost. Seal Ring made of 

Stainless Steel with Graphite layer laminated. Graphite layer inner with spiral wound stainless gasket ensure a higher cycle life

3. 軟密封 Soft

適用于: 常溫/低溫工礦, 中等壓差, 中等流速, 耐酸耐堿的流質 Application: Normally & Low Temperature, Middle Pressure Difference, Middle Flow Speed, 

Acid and Alkali.

特點: 成熟的制造工藝, 成本較低;在母體材料耐酸耐堿的狀況下, 采用特富龍密封圈較大的降低了密封副的成本 Feature: Mature manufacturing technology process control with a low cost. Teflon seal with lower 

cost when basic material suitable for acid or Alkaili

可選擇的獨立閥座材料                           

17-4PH

A182 F304 / F304L

A182 F316L / 310

A182 F51 / F53 / F55

Monel 400, Incoloy, Hastelloy C-276 ,

Al-Bronze 等其它材料

流向結構 THE VALVE FLOW DIRECTIONAL

單向密封結構 UNI-DIRECTIONAL

● 采用整體鑄造工藝的本體閥座, 節(jié)約了制造成本 Integral Casting Body Seat, save the production cost

● 閥座采用斜錐面設計, 通過磨削精加工工藝 表面粗糙度可達Ra 0.4 Body Seat with oblique cone design, with high quality machining to Roughness Ra 0.4

● 閥座表面堆焊 13%以Cr / 不銹鋼/司太力等不同要求的合金材料, 提高了閥座的硬度和耐磨性, 延長了閥座的使用壽命 Body Seat overlay with 13%Cr / Stainless Steel / Stellite and so on alloy material provide a higher hardness and hard-wearing surface

● 由于閥座不可更換, 所以我公司在生產階段嚴格控制閥座的質量, 采用著色滲透法檢查閥座堆焊后的品質 Body Seat cant be renewable, CZV provide a penetration testing on the seat after 

 overlay

● 單向密封設計, 在上游流質壓力下,保證氣泡級零泄漏 Provide a bubble tight leak from upstream service, named: uni-directional

雙向密封結構 BI-DIRECTIONAL

● 采用獨立的整體鍛造閥座圈, 材料最低不銹鋼SS304, 保證了密封圈的抗腐蝕性能和強度 Renewable Body Seat Ring made of integral forged, minimum stainless steel 304 to guarantee the resistance to corrosion and strength

● 閥座采用斜錐面設計, 通過磨削精加工工藝 表面粗糙度可達Ra 0.4 Seat Ring with oblique cone design, with high quality machining to Roughness Ra 0.4

● 閥座還可選用堆焊/噴涂司太力工藝和滲氮、鍍鉻等工藝處理, 拓寬了不同工礦的應用要求 Seat Ring option with overlay / spay Stellite / Nitride / Chrome plated and so on different treatment process used for different application

● 閥座獨立安裝入閥體, 可實現維修和更換的目的  Seat Ring independent install into the body, Ensure a replacement and renewable service

● 雙向密封設計, 在上游或下游流質壓力下,均能保證100%的氣泡級零泄漏 The renewable Body Seat provide a bi-directional bubble tight on upstream and down stream service

獨特的雙向密封結構 THE DESIGN OF BI-DIRECTIONAL 

RETZ獨特的獨立閥座的設計打破了傳統(tǒng)觀念上對蝶閥的理解, 實現了蝶閥的雙向密封性能. 為業(yè)主提供更可靠的應用范圍更廣的蝶閥產品。此獨立閥座, 通過三開環(huán)及內六角螺絲可靠的固定在閥體內側 The unique design of independent valve seat breaks the traditional understanding of butterfly valve and realizes the two-way sealing performance of butterfly valve Provide the Owner with more reliable butterfly valve products with wider application range. The independent valve seat is reliably fixed on the inner side of the valve body through three open rings and hexagonal socket screws

依據壓力源之方向, 自動調整閥座位置, 使閥門在全關閉位置擁有最優(yōu)的密封比壓, 從而達到閥座兩側均不泄漏的效果, 形成了一個完整的閥座系統(tǒng)。閥座和三開環(huán)的強度通過有限元分析計算, 并且符合 API 609 / API 598 以及 ASME B16.34相關的使用規(guī)定 According to the direction of the pressure source, the valve seat position is automatically adjusted, so that the valve has the optimal sealing specific pressure at the fully closed position, so as to achieve the effect of no leakage on both sides of the valve seat, forming a complete valve seat system. The strength of the valve seat and three open rings is calculated by finite element analysis, and it conforms to API 609/API 598 and ASME B16.34

在上游介質壓力 UPSTREAM SERVICE

蝶板在關閉的過程中, 由于外部輸入扭矩和上游流質壓力的雙重作用下, 確保了密封圈的密封力完美地均勻分布在加工成相同斜錐面的閥座上從而實現了可靠的密封性能

Cause the external input torque and upstream fluid pressure force on disc way to closing.The sealing force of sealing ring isperfectly uniform and distributed on the seat ring surface which processed into the same oblique cone to achieve a reliable sealing system

在下游介質壓力下 DOWNSTREAM SERVICE

獨立閥座可以根據下游壓力源的變化, 自動調整閥座位置. 蝶板在關閉的過程中, 在外部輸入扭矩的驅動下, 密封圈與閥座在關閉的瞬間達到了理想的密封比壓, 確保了密封圈的密封力完美地均勻分布在加工成相同斜錐面的閥座上從而實現了可靠的密封性能

Due to the renewable seat ring automatically adjusted according to downstream fluid pressure. On the external input torque, the disc seal ring provide a optimal sealing specific pressure with seat ring in the full closed position. The sealing force of sealing ring is perfectly uniform and distributed on the seat ring surface which processed into the same oblique cone to achieve a reliable downstream sealing system.

特點與優(yōu)點 FEATURE AND BENEFITS.

1.三偏心設計:消除了密封面間的磨損, 以及保持了密封面的完整性和較長的使用壽命 Triple Eccentric Design:Eliminates wear associated with sealing surface contact and maintains sealing integrity and high cycle life.

2.大角度的閥座設計:消除了閥座與密封圈在契入和結合時的束縛 Wide Angle Seat Design Eliminates wedging and binding of the seat / disc engagement

3.較寬的使用范圍:可使用在-196~+620℃的應用現場  Superior Application Can be used on -196~+620℃ different applications

4.可選擇的密封圈材料:在確保氣泡級零泄漏的基礎上拓寬了閥門的使用領域,金屬碰金屬,多層次密封,特富龍 Option Seal Ring Material:Due to bubble tight provide a widely application,Metal x Metal,Laminated Seal,Teflon

5.可選擇的閥桿與蝶板連接方式: 銷釘, 鍵槽,在確保足夠扭矩力的作用下, 根據不同的客戶要求.Option connect between stem and disc: Dowel Pin and Keyway Ensure the stronger input torque base on client request

6.可選擇的密封結構: 單向密封, 雙向密封均提供氣泡級密封 i-directional & Bi-Directional

7.可靠的密封性能: 氣泡級保證了流體效率, 以及縮小了業(yè)主的維護成本 Bubble – Tight Closure Provide process efficiency with reduced cost of maintenance

8.單條結實的閥桿使閥桿的扭曲減小到最小, 提供更結識的無泄漏雙向密封支撐 Robust Single-Piece Stem:Minimizes stem deflection and permits bi-directional sealing.

9.可靠的防火性能:均按照美標API 607 / API 6FA / ISO 10497 防火要求設計&制造 Fire Safe Function:All metallic seal provide API 607 / API 6FA / ISO 10497 request design.

10.可選擇的逸散性指標:可根據客戶要求配置 ISO 15848 / TA-LUFT 低密封逸散性設計要求 Option Low Emission Provide Low Emission request base on ISO 15848 / TA LUFT

11.閥桿防止吹出:根據 API 609 4.5系列下的要求閥桿均滿足防吹出設計 Blowout-proof Stem Complies with API 609 4.5 to improve safety for operation personnel.

主要零部件材料 Main parts and materials