SIGRAFLEX HOCHDRUCK

Sealing Sheet Made from Natural Graphite

with High-Integrity Stainless Steel Foil Reinforcement

for Extreme Conditions

SIGRAFLEX HOCHDRUCK

Our Contribution to Environmental Protection

SIGRAFLEX HOCHDRUCK

is a multilayer high-strength graphite sealing sheet

comprising 0.5 mm thick layers of high-purity graph -

ite foil and 0.05 mm thick stainless steel foils.

Depending on the sheet thickness required, several

layers of graphite and stainless steel foil are joined

together in a patented adhesive-free process. As a

result, the sheets have outstanding mechanical prop -

erties. The sealing sheet is impregnated to reduce

leakage and improve handling.

SIGRAFLEX HOCHDRUCK allows end users in the

process industry to cover almost their entire gasket

application range with a reliable and safe product.

Applications

For difficult and mechanically highly stressed

sealed joints (in tongue-and-groove and

special-dimension flanges, process equipment,

heat exchangers); also suitable for all common

pipework and vessel flange designs

Recommended for one-piece gaskets up to

1500 mm outside diameter; for diameters over

1500 mm as two-layer structures with segment ed sections and staggered joints, for instance

For high internal pressures of up to 250 bar

For corrosive media

Suitable for a broad range of temperatures

from -250°C to approx. 550°C; for appli cations at more than 450°C, users should

request our advice

Gaskets for the chemical, petrochemical

and refinery industries

Steam pipework and boilers in power stations

Heat transfer oil and heating facilities

Inspection glasses, pumps, fittings

Existing plants

Properties

Reduction in fugitive emissions due to very high

leak-tightness

Very high maximum permissible gasket stress

High operational reliability and excellent

oxidation resistance

High blow-out resistance and very high

mechanical strength

Very high fault tolerance during assembly

and operation

Good chemical resistance

Long-term stability of compressibility and

recovery, even under fluctuating temperatures

Good scratch resistance; antistick finish

due to special impregnation

No measurable cold or warm flow characteristics

up to the maximum permissible gasket stress

No aging or embrittlement, owing to the

absence of adhesives or binders

Ease of processing

Asbestos-free, no associated health risks

Approvals

TA Luft (VDI 2440/VDI 2200) with inner

eyelets in various designs; for tongue and-groove flanges without eyelets

Fire safety according to BS 6755-2

and API 607

Blow-out resistance (TüV at 2.5 times

the nominal pressure)

BAM oxygen

BAM ethylene oxide/propylene oxide

Germanischer Lloyd

US Coastguard

DVGW (DIN 3535-6)

TRD 401

Assembly instructions

For assembly, use dry and undamaged gaskets only.

Wet graphite gaskets must not be fitted unless first

dried completely. The sealing faces must be clean,

dry and free from grease. Do not use release agents!

Position the gasket centrically and avoid mechan -

ical stresses during assembly. An assembly aid

can be used if necessary. To facilitate assembly in

difficult posi tions, the gasket may be fixed by using

a commer cially available adhesive. However, the

adhesive should be applied sparingly at a few

points only.

Align the flanges as plane-parallel as possible. First

hand-tighten the bolts and then tighten the bolts in

a crosswise order to about 50% of the maximum

torque value, in the second stage to about 80% and

to the full value in the third stage. All bolts must be

tightened to the specified bolt load, so the torque

must be checked repeatedly. Our detailed assembly

instructions are available on request.

SIGRAFLEX HOCHDRUCK

用天然石墨和高完整性不銹鋼箔制成的適用于極端條件的sigraflex hochdruck密封板

Sigraflex hochdruck我們對(duì)環(huán)境保護(hù)的貢獻(xiàn)

Sigraflex hochdruckis是一種多層高強(qiáng)度石墨密封片，由0.5毫米厚的高純度石墨薄片和0.05毫米厚的不銹鋼薄片組成。根據(jù)薄片厚度的要求，幾層石墨薄片和不銹鋼薄片通過專利的無粘合劑工藝連接在一起。 因此，這些床單具有出色的機(jī)械性能。 這種密封片經(jīng)過浸漬以減少漏電和提高處理能力。sigraflex hochdruck使加工工業(yè)的最終用戶能夠用一種可靠和安全的產(chǎn)品覆蓋幾乎他們的整個(gè)氣體應(yīng)用范圍。

適用于高難度和機(jī)械高應(yīng)力密封接頭(舌槽和特殊尺寸法蘭、工藝設(shè)備、熱交換器) ;也適用于所有推薦的普通管道和容器法蘭設(shè)計(jì)，適用于外徑達(dá)1500毫米的單片墊片;適用于直徑超過1500毫米的分段雙層結(jié)構(gòu)和錯(cuò)列接頭，例如適用于大范圍溫度約為-250°c至x的腐蝕性介質(zhì)的高內(nèi)壓達(dá)250巴。 對(duì)于超過450°c的應(yīng)用，用戶應(yīng)要求我們的建議密封墊，用于化工、石化和煉油工業(yè)的蒸汽管道和發(fā)電站鍋爐的熱傳導(dǎo)油和加熱設(shè)施的檢查眼鏡，水泵，配件現(xiàn)有的工廠

由于非常高的密封性、非常高的允許密封墊壓力、非常高的允許密封墊壓力、非常高的運(yùn)行可靠性和卓越的抗氧化性、非常高的機(jī)械強(qiáng)度、非常高的故障容忍性在組裝和運(yùn)行期間良好的耐化學(xué)性、長(zhǎng)期的可壓縮性和恢復(fù)性的穩(wěn)定性，即使在溫度波動(dòng)的情況下良好的抗劃傷性;由于特殊浸漬而沒有可測(cè)量的冷流或溫流特性，因?yàn)樵试S應(yīng)力沒有老化或變脆，因?yàn)闆]有石棉或粘合劑易于加工，沒有相關(guān)的健康風(fēng)險(xiǎn)

批準(zhǔn)輕便(vdi 2440 / vdi 2200)，內(nèi)置小孔，各種設(shè)計(jì);對(duì)于沒有小孔的舌槽法蘭，按照bs 6755-2和api 607防爆電阻(t v為名義壓力的2.5倍) bam氧化巴姆環(huán)氧乙烷/環(huán)氧丙烷鍺化物勞埃德美國(guó)海岸警衛(wèi)隊(duì)dvgw (din 3535-6) trd 401

裝配指南，只使用干的和未損壞的墊圈。濕的石墨墊圈必須首先完全干燥。密封面必須清潔，干燥，無油脂。不要使用脫模劑!將墊圈固定在中心位置，避免在組裝過程中產(chǎn)生機(jī)械應(yīng)力。 如果有必要，可以使用集合助手。 為了便于在困難的位置組裝，墊圈可以使用一種通用的粘合劑來固定。 但是，粘合劑只能在少數(shù)幾個(gè)點(diǎn)上使用，要盡可能使法蘭平行排列。 第一手資料-緊固螺栓，然后橫向緊固螺栓約50%的扭矩值，在第二階段約80%和充分值在第三階段。 所有螺栓必須按規(guī)定的螺栓負(fù)荷緊固，因此必須反復(fù)檢查扭矩。 我們?cè)敿?xì)的裝配說明可以根據(jù)要求提供。