SIGRAFLEX APX2 HOCHDRUCK

Multilayer high-strength sealing sheet made from natural graphite with

stainless steel foil reinforcement for high-temperature applications

SIGRAFLEX APX2 HOCHDRUCK is a multilayer high-strength

graphite sealing sheet–designed for high-temperature

applications.

The sheet is comprised of 0.5 mm thick layers of highly

oxidation resistant SIGRAFLEX APX2 flexible graphite and

0.05 mm thick layers of stainless steel foil, manufactured

with SIGRAFLEX HOCHDRUCK technology.

SIGRAFLEX APX2 HOCHDRUCK was developed for end users

in the process industry to cover a broad range of demanding

gasket requirements with a reliable and safe product.

SIGRAFLEX APX2 HOCHDRUCK is specifically designed for

high temperature flat gasket applications.

Applications

●Operating temperatures range from–250°C up to 580°C

 depending on chemical resistance. Life time might be limited

 at high temperatures. Consult the manufacturer when

 application temperatures exceed 480°C. Please refer to our

 technical guideline regarding thermal stability.

●All common pipework and vessel flange designs as well as

 difficult and highly stressed sealed joints.

●For one-piece gasket designs up to an outside diameter of

 1500 mm; for diameters above 1500 mm, for example

 two-layer structures with segmented sections and staggered

 joints are recommended.

●For operating pressures from vacuum up to 250 bar

●For corrosive media

●Steam pipework and boilers in power generation plants

●Heat transfer oils and heating equipment

●Inspection glasses, pumps, fittings and valves

●Nuclear power generation plants

●Pulp and paper mills

●Existing plants

Properties

SIGRAFLEX APX2 HOCHDRUCK combines the outstanding

characteristics of both SIGRAFLEX APX2 graphite foil and

reinforced sheets manufactured with SIGRAFLEX HOCHDRUCK

technology:

●Increased gasket life and improved operational safety due

 to very high oxidation resistance

●Reliable product characteristics for high plant security and

 availability

●Outstanding maximum permissible gasket stress

●Very high blow-out resistance and mechanical strength

●Very adaptable sealing material during gasket assembly

●Good chemical resistance

●Long-term stability of assembly load and gasket stress

●No measurable cold or warm flow characteristics up to the

 maximum permissible gasket stress

●No aging or embrittlement (no adhesives or binders)

●Very easy to cut into required sealing shapes, even with

 conventional cutting equipment/tools

●Asbestos-free (no associated health risks)

SIGRAFLEX  APX2  HOCHDRUCK

多層高強(qiáng)度密封板由天然石墨與不銹鋼箔增強(qiáng)高溫應(yīng)用

Sigraflex apx2 hochdruck是一種多層高強(qiáng)度石墨密封片，專為高溫應(yīng)用而設(shè)計(jì)。 該板材由0.5 mm厚的高抗氧化性sigraflex apx2柔性石墨和0.05 mm厚的不銹鋼箔組成，采用sigraflex hochdruck技術(shù)生產(chǎn)。sigraflex apx2 hochdruck是為終端用戶開(kāi)發(fā)的，覆蓋了加工工業(yè)對(duì)墊片的各種要求，產(chǎn)品安全可靠。

應(yīng)用

●根據(jù)耐化學(xué)性能，操作溫度范圍從 -250 °c 到580 °c 不等。 在高溫下，生命的時(shí)間可能是有限的。 當(dāng)使用溫度超過(guò)480 °c 時(shí)請(qǐng)咨詢制造商，請(qǐng)參閱我們關(guān)于熱穩(wěn)定性的技術(shù)指南。 * 所有常見(jiàn)的管道和容器法蘭設(shè)計(jì)以及困難和高應(yīng)力的密封接頭。 * 對(duì)于外徑達(dá)1500毫米的單件墊片設(shè)計(jì); 對(duì)于直徑超過(guò)1500毫米的墊片，例如建議采用分段和交錯(cuò)連接的雙層結(jié)構(gòu)。 * 用于腐蝕性介質(zhì)的操作壓力從真空至250巴

●用于發(fā)電廠的蒸汽管道和鍋爐

●傳熱油和加熱設(shè)備

●檢查玻璃、泵、配件和閥門

●核能發(fā)電廠

●紙漿和造紙廠現(xiàn)有設(shè)備

Apx2 hochdruck結(jié)合了sigraflex apx2石墨箔和sigraflex hochdrucktechnology制造的增強(qiáng)片的突出特性:

*由于非常高的抗氧化性，提高了墊片壽命和操作安全性;

●可靠的產(chǎn)品特性，具有高工廠安全性和可用性;

●優(yōu)異的允許墊片應(yīng)力

*非常高的抗爆性和機(jī)械強(qiáng)度

●墊片組裝過(guò)程中非常適合的密封材料

●良好的化學(xué)抗性

●組裝負(fù)荷和墊片應(yīng)力的長(zhǎng)期穩(wěn)定性

●在允許的墊片應(yīng)力范圍內(nèi)沒(méi)有可測(cè)量的冷或暖流特性

●不老化或脆化(沒(méi)有粘合劑或粘合劑)

●非常容易切割成所需的密封形狀，即使使用傳統(tǒng)的切割設(shè)備/工具也不含石棉(沒(méi)有相關(guān)的健康風(fēng)險(xiǎn))