長期以來在機器、機器機表及汽車交通等領域存在的，由於使用O型密封圈、皮碗密封、金屬波紋管和其他傳統的密封形式產生的磨擦和泄漏問題，在上個世紀50年代年變得越來越明顯。為瞭解決這一問題，Bellofram制定瞭一個五年開發計劃，該計劃的目的是開發出一種可以在非常高的溫度、壓力和運動行程范圍內使用，同時又具有極小的磨擦和泄漏的滾動密封產品（Rolling Seal）。經過五年不懈的努力，Bellofram建立起瞭一個完整的滾動密封膜片產品線，完全滿足瞭各種制造業客戶的需求。
這種采用新型密封方式的產品立刻得到瞭廣泛的認可，公司同時也隨著進一步發展壯大起來。1957年公司在馬薩諸塞州伯靈頓建立瞭工廠。Bellofram的創始人John Taplin設計出瞭各種各樣的薄膜產品，廣泛的應用在氣缸、空氣調壓閥、機表保護裝置以及其他各種氣壓、水壓裝置上。八十年代早期Rexnord購買瞭Bellofram,然後在1986年出售給美國俄亥俄州哥倫佈斯市戴斯科公司（Desco Corporation of Columbus,Ohio）。戴斯科公司把Bellofram在新罕佈什爾州（New Hampshire）佩勒姆（Pelham）和馬薩諸塞州伯靈頓的工廠搬遷到位於西弗吉尼亞州（West Virginia）紐厄爾（Newell）的一個全新的現代化工廠。專業從事大批量、高精度彈性產品的設計、生產和整合。
1995年1月戴斯科公司（Desco Corportation）的姊妹公司Marsh和Bellofram合並成為Marsh Bellofram公司。Marsh Bellofram公司的總部位於美國的東北部地區，距賓夕法尼亞州匹茲堡市25英裡的西弗吉尼亞州的紐厄爾。2002年有著20年歷史的戴斯科熱電偶生產廠也從伊利諾伊州遷到紐厄爾這個大型的現代化工廠。
| 詳細信息： | marsh bellofram精密調壓閥960-009-000 昆山恩歐凱自動化設備有限公司
marsh bellofram精密調壓閥 marsh bellofram 精密調壓閥
| Type 10 Pressure Regulator | - Highly Accurate Pressure Regulation
- Start-up Stability
- Automatic High Downstream Relief Capacity
- Locking Capability
- Temperature Stability
- Ideal for Medical Applications
| | | | Product Detail: | There is no other self-contained pressure regulator in the entire world, which can match the regulation accuracy and the repeatability of the Bellofram Type 10 pressure regulator. It is for use wher the utmost precision is required. The regulator is actually a pressure controller using a servo-balanced system in which the main valve is operated by a pilot valve and is dependant on a stainless steel measuring capsule for its incredible accuracy. Originally developed for sensitive aircraft altimeters, this precision sensing element provides the energy to activate the servo-control mechanism. It provides greater regulation accuracy and eliminates the problems usually encountered with range springs and conventional diaphragms. The entire measuring element, including the pilot valve, is fabricated from stainless steel which has been carefully heat treated to eliminate hysteresis or permanent deformation under all working conditions.
The Bellofram Type 10 regulators output pressure with an accuracy of 0.1%, and has very low sensitivity to changes in supply pressure and flow. Designed to eliminate the need for any readjustment of the regulated pressure after long "down time." At start-up, the regulated pressure will return to its output setting. The regulated pressure is held constant over substantial changes in flow due to the high-gain pneumatic servo amplifier and is particularly good from dead end to 12 SCFM. An integral relief valve provides for exhaust flow whenever the regulated pressure is reset to a lower value. The exceptionally large capacity of this relief valve assures immediate response when the downstream regulated pressure must be reduced under dead-end conditions. Pressure stability is achieved by a high performance servo-operated control mechanism utilized in the regulator and the pressure supplied to the pneumatic servo amplifier is reduced and held constant. | | Part Numbers: | | | | Port Size | Control Range | | Type | Part Number | NPT | BAR | psig | | 10 | 960-001-000 | 1/8" | 0.1–1.7 | 2-25 | | 960-003-000 | 1/4" | 0.1–1.7 | 2-25 | | 960-005-000 | 3/8" | 0.1–1.7 | 2-25 | | 960-007-000 | 1/8" | 0.1–4.1 | 3-60 | | 960-009-000 | 1/4" | 0.1–4.1 | 2-60 | | 960-011-000 | 3/8" | 0.1–4.1 | 2-60 | | 960-013-000 | 1/8" | 0.1–8.3 | 2-120 | | 960-015-000 | 1/4" | 0.1–8.3 | 2-120 | | 960-017-000 | 3/8" | 0.1–8.3 | 2-120 | | 10BM | 960-126-000 | N/A | 0.1–1.7 | 2-25 | | 960-127-000 | 0.1–4.1 | 2-60 | | 960-128-000 | 0.1–8.3 | 2-120 | | 10HR | 960-028-000 | 1/8" | 0.1–8.3 | 2-120 | | 960-029-000 | 1/4" | 0.1–8.3 | 2-120 | | 960-030-000 | 3/8" | 0.1–8.3 | 2-120 | | 10EXHR | 960-072-000 | 1/8" | 0.1–8.3 | 2-120 | | 960-073-000 | 1/4" | 0.1–8.3 | 2-120 | | 960-074-000 | 3/8" | 0.1–8.3 | 2-120 | | 10PL | 960-019-000 | 1/8" | 0.1–1.7 | 2-25 | | 960-020-000 | 1/4" | 0.1–1.7 | 2-25 | | 960-021-000 | 3/8" | 0.1–1.7 | 2-25 | | 960-022-000 | 1/8" | 0.1–4.1 | 2-60 | | 960-023-000 | 1/4" | 0.1–4.1 | 2-60 | | 960-024-000 | 3/8" | 0.1–4.1 | 2-60 | | 960-025-000 | 1/8" | 0.1–8.3 | 2-120 | | 960-026-000 | 1/4" | 0.1–8.3 | 2-120 | | 960-027-000 | 3/8" | 0.1–8.3 | 2-120 | | 10LR | 960-053-000 | 1/4" | 0.03–1.7 | 0.5-25 | | 10HF | 960-703-000 | 3/8" | 0.1–1.7 | 2-25 |
| | Options: | Available with a tamper resistant cover. The cover is threaded over the adjusting screw to prevent inadvertent or unwarranted adjustment of output pressure. The Type 10 Regulator is also available with bottom ports, (Type 10BM) Consult Factory. Type 10 Motorized Regulator |
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