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YN-2000A土肥儀|土壤養(yǎng)分測定儀特點|土壤養(yǎng)分快速測定儀作用

土壤養(yǎng)分測定儀,土壤溫濕度記錄儀,土壤緊實度儀

YN-2000A型土肥儀技術(shù)指標(biāo):

分辨率:0.001-9999

重復(fù)性誤差:≤0.5(重鉻酸鉀溶液

儀器穩(wěn)定性:≤0.5(透光度測量

功率:≤5W

線形誤差:≤3%(硫酸銅檢測

測試速度:測個土樣(NP、K)1小時

 

YN-2000A型土肥儀產(chǎn)品特點:

功能:可測土壤、肥料、植株中的氮、磷、鉀;土壤(肥料)有機質(zhì);土壤水分(用燃燒法)、中微量元素(硼、錳、鐵、銅、鈣、鎂、硫、氯、硅、鋅、等)、氮;煙草中的還原塘、總糖等。(各類藥劑均可選購)

配套齊:該儀器集藥、器、儀為體,攜帶方便,相當(dāng)于個小型實驗室。適于農(nóng)業(yè)服務(wù)部門測土施肥和鑒別真假化肥。

操作簡便、速度快捷,獨研制的聯(lián)合浸提劑(發(fā)明專利)5分鐘即可完成氮、磷、鉀的浸提,成品藥劑開瓶即用,無須配置。

性能:工作穩(wěn)定性優(yōu)于國標(biāo)準(zhǔn)JJG179-90指標(biāo)的6倍,重復(fù)性達(dá)到光柵型分光光度計指標(biāo)水平。

上海旦鼎國際貿(mào)易有限公司(www.dookings.com)位于中國上海浦東新區(qū),專業(yè)從事MRO工業(yè)品的生產(chǎn)、和直銷。上海旦鼎擁有國內(nèi)外眾多知名工業(yè)領(lǐng)域產(chǎn)品的中國區(qū)權(quán)限和支國際采購團隊,為國內(nèi)企業(yè)客戶提供高性能的國產(chǎn)及進口工業(yè)和實驗儀器設(shè)備。上海旦鼎國際貿(mào)易有限公司實力雄厚,重信用、守合同、產(chǎn)品質(zhì)量,以多品種經(jīng)營特色和薄利多銷的原則,贏得了廣大客戶的信任。

 

更多信息可以參考http://www.89-china.com/

 

該公司產(chǎn)品分類: 旋轉(zhuǎn)蒸發(fā)儀 恒溫金屬浴 酶標(biāo)儀 色差儀|色譜儀 水分測定儀 sbp產(chǎn)品 高壓氣體基因槍 基因槍 紫外交聯(lián)儀 細(xì)胞融合儀 洗地機 硬度計 潔凈工作臺 輻射檢測儀 分子雜交儀 酶標(biāo)儀|洗板機 黃曲霉毒素檢測儀 電導(dǎo)率儀 水質(zhì)檢測儀|水質(zhì)測定儀 重金屬檢測儀

MOBIL STERN TUBE LUBRICANT/美孚

24小時在線聯(lián)系人 電話:13380324305江小姐微信同號

 

Mobil Stern Tube Lubricant  

ExxonMobil Marine, United States

 

View  Mobil Stern Tube Lubricant
 
Product Description

Mobil Stern Tube Lubricant is a high performance, high viscosity lubricant developed especially for the lubrication of Cedervall-type stern tube bearings used in ships and for certain bearings of ships' fin stabilizers. Mobil Stern Tube Lubricant is formulated from relatively high Viscosity Index (VI) base oils combined with emulsifiers, structure modifiers, surface active agents and corrosion preventives. It emulsifies readily with seawater to form a stable water-in-oil emulsion that is adhesive and an excellent lubricant. It provides effective rust protection in the presence of seawater and the lubricating film is resistant to water washing so that corrosion protection is maintained for extended periods under severe operating conditions.

Where the propeller shaft passes through the hull of a ship, it is supported by a bearing that is housed in the stern tube. Three distinct types of bearings are employed in this application: 1) The lignum vitae bearing, which has a stuffing box on the inboard side and no seal on the outboard side, is lubricated by seawater. The stuffing box may be lubricated with grease or oil, if this is deemed necessary. 2) Bronze or white metal bearings having oil-tight rubber seals on the inboard and outboard ends normally are filled with a lubricating oil that readily separates from water. Turbine oils, engine oils or hydraulic oils of the required viscosity generally are recommended. 3) The Cedervall type, which is a bronze or white metal bearing having an oil-tight inboard seal or stuffing box and metallic outboard seal that is not fully oil-tight, requires a lubricant that readily emulsifies with water. Mobil Stern Tube Lubricant has been formulated to meet this need. With the Cedervall type bearing a high viscosity lubricant generally is supplied to the bearing from a gravity tank located above the waterline so that the lubricant is under sufficient pressure to help exclude water from the bearing.

A recent development in ship stabilizers is the Denny-Brown-AEG stabilizer developed jointly by Brown Brothers and Co. Ltd, William Denny and Brothers Ltd., AEG, and Deutsche Weft. In these newer designs, the fins are mounted on trunnion bearings which permit them to be folded forward into storage boxes in the hull of the ship when not in use. A fixed shaft extends from the crux trunnion and the fin is mounted on this shaft on two bearings, which permit the fin to be tilted by a hydraulic mechanism to provide the righting movement to reduce roll of the ship. The interior of the fin and the fin bearings are lubricated by gravity from a header tank located above the waterline and the crux trunnion bearings are lubricated by pressure feed from a lubricator pump.

 Features and Benefits

The requirements for lubrication of these three sets of bearings in the stabilizers and stern tubes are sufficiently similar so that a single, carefully formulated lubricant can be used for all of them. To perform satisfactorily, however, the lubricant must have the correct viscosity to flow properly under gravity head without excessive rapid flow that would result in high consumption; must minimize wear under the heavy loads encountered in the bearings; must protect the bearings and other components from corrosion and must emulsify with any seawater that passes the seals in order to maintain lubricating characteristics and minimize corrosion.

In stern tube applications, consumption of the lubricant is a major concern, both from the standpoint of the cost of the lubricant and the cost of labor required to fill the tanks. In two ship trials conducted over an extended period, Mobil Stern tube Lubricant gave significantly reduced consumption compared to the previous formulation, and at least as low as the best competitive product. Throughout the tests, lubrication was entirely satisfactory. These results indicate that Mobil Stern Tube Lubricant provides effective and low cost lubrication of stern tube bearings.

Key features and potential benefits include:

Features Advantages and Potential Benefits
Selected viscometrics Effective lubrication of critical stabilizer and stern tube components
Good emulsification properties Emulsifies readily to maintain lubrication in the presence of seawater
Excellent rust and corrosion properties Protects critical bearing surfaces exposed to seawater
Multi-use capability Reduces the number of lubricants required on-board
Good viscosity retention in severe applications Effective leakage control and reduced oil consumption

 

Applications

Mobil Stern Tube Lubricant is recommended for the lubrication of Cedervall-type stern tube bearings on ships where a high viscosity, readily-emulsifying lubricant is recommended by the manufacturer. It is also recommended for the lubrication of fin tilting bearings, as well as the crux trunnion bearings of Denny-Brown-AEG ship stabilizers and is approved by the manufacturer for use in these applications.

 Specifications and Approvals

 

Mobil Stern Tube Lubricant has the following builder approvals  
Brown Brothers and Company, Ltd.  
William Denny and Brothers Ltd.  
AEG  
Deutsche Weft  

 

 

Typical Properties

 

Viscosity  
cSt @ 40ºC 385
cSt @ 100ºC 24
Viscosity Index, ASTM D 2270 82
Pour Point, ºC, max, ASTM D 97 10
Flash Point, ºC, min, ASTM D 92 246
Density @15ºC kg/l, ASMT D 4052 0.915
API Gravity 23.1
Rust Test-Seawater, ASTM D 1401 Pass
Timken Salt Water Corrosion Test Pass
Emulsion Test, ASTM D 1401  
Emulsion @ 60 min, ml 60
Emulsion characteristics Thick and Stable

 

 

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, following the recommendations provided in the Material Safety Data Sheet (MSDS). MSDSs are available upon request through your sales contract office, or via the Internet on http://www.exxonmobil.com. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

The ExxonMobil logotype, and Mobil are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

該公司產(chǎn)品分類: 美孚600xp150 220 320 68 460 VG 680超齒輪油 卡特潤滑油 福斯?jié)櫥?/a> 道達(dá)爾潤滑油 加德士導(dǎo)軌油 美孚齒輪油 殼牌潤滑油 雪佛龍潤滑油 嘉實多潤滑油 克魯勃潤滑油 美孚潤滑油

PT1200E手持式均質(zhì)器、手持式乳化機、手持式分散機-瑞士KINEMATICA

 手持式均質(zhì)器|手持式乳化機|實驗室均質(zhì)乳化機|實驗室乳化機|實驗室分散機|實驗室均質(zhì)器|高剪切均質(zhì)機|高剪切分散機

 

POLYTRON ® PT 1200 E手持式均質(zhì)器(處理量:0.05-250ml)

   瑞士KINEMATCA PT 1200E 該手持式的乳化均質(zhì)器適合于小量的樣品的處理,PT 1200E 符合人體工程學(xué)和輕量化的設(shè)計,易于操作人員的使用。如果需要的話,可以配上支架。PT 1200E 可以配上多種不同形式的工作頭,直徑從3mm 到12mm, 處理量從0.05ml到250ml。為了避免不同物料處理而引起的交叉污染,我們提供直徑7mm-12mm 的一次性合成材料分散頭。我們近期又在產(chǎn)品系列中添加了新的分散頭 PT-DA 20/2 X EC,專門用于均質(zhì)藥片。

 

PT 1200 E手持式均質(zhì)器的特點:

+ 24V, 100W 低壓電機馬達(dá),配有安全變壓器

+ 可控轉(zhuǎn)速,最大速度可以達(dá)到25,000rpm

+ 分散頭轉(zhuǎn)子的線速度可達(dá)到12m/s, 超細(xì)粒徑

+ 軟啟動以防止被均質(zhì)的物料從樣品容器中濺出

+ 符合人體工程學(xué)的設(shè)計,易于操作。

+ 專利的快接分散頭安裝設(shè)計, 可以單手完成安裝或者拆卸

+ 分散頭的定子-轉(zhuǎn)子易于拆卸清洗(Easy Clean 技術(shù)),操作者可以簡單快速完成定子-轉(zhuǎn)子的拆卸,提供不同的分散頭以滿足具體的需要。

 

手持式均質(zhì)器|手持式乳化機|實驗室均質(zhì)乳化機|實驗室乳化機|實驗室分散機|實驗室均質(zhì)器|高剪切均質(zhì)機|高剪切分散機

 

PT 1200 E手持式均質(zhì)器備件

   包括:固定整個設(shè)備的支架

 

PT 1200 E 手持式均質(zhì)器技術(shù)參數(shù):

 型號/系列

 處理量

 最大轉(zhuǎn)速

 功率

 分散頭直徑

 標(biāo)準(zhǔn)軸長

 PT 1200 E

 0.05-250ml

 28000rpm

 100w

 3-12mm

 50-123mm

 

該公司產(chǎn)品分類: 分散頭系列 實驗室反應(yīng)釜 實驗室乳化機 高剪切乳化機 在線式乳化機

154N型壓力傳感器

產(chǎn)品說明:   154N超穩(wěn)壓力傳感器:154N型壓力傳感器是一種經(jīng)過補償,且與介質(zhì)兼容的硅壓阻式傳感器,其外殼采用316不銹鋼封裝結(jié)構(gòu)。外界壓力通過316不銹鋼膜片及內(nèi)部灌充硅油傳遞傳感器件敏感元件上。 154N型壓力傳感器可應(yīng)用于低壓場合。通過對陶瓷基座上的厚膜電阻進行激光修阻,可以實現(xiàn)對傳感器的溫度補償及零點偏差調(diào)整。陶瓷基底上還提供了一個經(jīng)激光修正的增益調(diào)節(jié)電阻使傳感器在經(jīng)過外部差分電路放大后達(dá)到統(tǒng)一的輸出值,并可控制在+/-1%互換范圍內(nèi)。所屬品牌: MEAS輸出: 0~100mA 量程: 0-5,15,30,50,100,300,500(Psi) 封裝:小結(jié)構(gòu),o型圈密封工作溫度范圍:-40℃~125℃(補償溫度精確度:±0.1%非線性 供電電源: 1.5mA 特點: O形圈密封結(jié)構(gòu),激光修正補償技術(shù),外徑19mm 類型: 1.5mA 電氣連接:導(dǎo)線、焊盤、導(dǎo)線帶、導(dǎo)柱 典型應(yīng)用: 壓力變送器,生化儀器,過程控制,液位計 資料下載:http://www.sensorway.cn/sensors/22.html 

該公司產(chǎn)品分類: 水質(zhì)分析儀/多參數(shù)水質(zhì)分析儀 濕度傳感器 振動/加速度傳感器 位移傳感器 力傳感器 壓力傳感器

國標(biāo)法蘭球閥PN 1.6MPa ~6.4MPa

國標(biāo)法蘭球閥PN 1.6MPa ~6.4MPa

ZDNP-6 ZDNP-6 電子式紙板耐破度測定儀

 

儀器名稱: 紙張平滑度測定儀,電子無汞式平滑度測定儀,平滑度測定儀,紙張平滑度測試儀,電子式平滑度測定儀,電子無汞式平滑度儀, 無汞式平滑度儀, 無汞平滑度測定儀
符合標(biāo)準(zhǔn): QB/T 1665、ISO 5627
產(chǎn)品用途:本平滑儀用于高平滑紙與紙板的測試工作,不應(yīng)用于測試厚度在0.5㎜以上的材料或透氣度大的紙或紙板,因為透過試樣的空氣量可造成不真實的結(jié)果。是各種高平滑紙檢測所必備的儀器。
技術(shù)指標(biāo):
1.計時器計時范圍:1~9999.99s,10~99999.9s
2.真空系統(tǒng)容積:×1,380±1mL ×10,38±1mL    
3.測試面積:10±0.05cm²
4.試樣所受壓力:100±2kPa
5.試驗工作區(qū)域:50.66 kPa -48.00 kPa
6.密封性能:真空壓力在50.66 kPa的情況下,大容積在60min或小容積在6min內(nèi),真空度的減少量應(yīng)小于3kPa
7.膠墊:厚度:4±0.2㎜   平行度:0.05㎜   直徑:不少于45㎜
復(fù)原彈性:至少62%    硬度:45±IRHD(國際橡膠硬度)
如需產(chǎn)品詳細(xì)技術(shù)資料及價格,請咨詢:0531-67810188 網(wǎng)址:http://www.sumspring.com 馬 小姐
 
該公司產(chǎn)品分類: 膠黏劑檢測儀器 紙張包裝檢測儀器 塑料包材檢測儀器 藥包材檢測儀器

AKRON耐磨試驗機專用砂輪

AKRON耐磨用砂輪 AKRON耐磨用砂輪 說明:鞋底、橡膠、輪胎耐磨試驗用砂輪(阿克隆耐磨試驗機上用)      型號  AKRON耐磨用砂輪   

Thermal Printers(熱敏打印機芯)

上海昱眾電子有限公司是二○○二年三月成立的國際貿(mào)易企業(yè),是代理國際知名品牌電子元件、電器產(chǎn)品銷售及從事各類產(chǎn)品進出口報關(guān)業(yè)務(wù)的專業(yè)公司。代理的產(chǎn)品有臺灣DIP撥動開關(guān)、輕觸開關(guān)、編碼開關(guān),臺灣DAILYELL撥動開關(guān)、觸動開關(guān)、船形開關(guān),美國Bourns精密電位器、自恢復(fù)保險絲,臺灣町洋DINKLE接線端子臺,日本富士通高見澤FUJITSU  TAKAMISAWA繼電器,微型熱敏打印頭,瑞士Burgess瞬時微動開

9120APWPKNIpHE pH 電極

J10 美國奧立龍 KNIpHE pH 電極

9120APWP

 

外國品牌,質(zhì)量更優(yōu),
歡迎來電、來郵洽談,
廣州市博勒泰貿(mào)易有限公司
儀器部實驗室、工藝在線,
光,
該公司產(chǎn)品分類: 水純化設(shè)備 水質(zhì)檢測儀器 藥品檢驗儀器 培養(yǎng)箱干燥箱試驗箱 實驗室常用儀器 實驗室基礎(chǔ)儀器 生化反應(yīng)儀器 光譜色譜質(zhì)譜儀 物理光學(xué)儀器 電化學(xué)儀器 天平、水分儀
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