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截止閥

18R2E系列3/4NPT高壓截止閥

這種高流量主閥由鍛造黃銅閥體制成,旨在滿足一般壓縮氣體歧管的要求。該閥門在70°F時的額定壓力為5000PSI。閥座塞由鋁硅青銅制成,可選擇Kel-F或Vespel閥座插入件。該閥門提供低扭矩操作功能,包括乙烯丙烯棒T形密封、聚四氟乙烯涂層不銹鋼密封圈和Delrin止推墊圈。這種設計為冷熱溫度提供了出色的密封能力。

Constructed from a forged brass body,this high flow master valve was designed to meet general compressed gas manifold requirements. This valve has a pressure rating of 5000 PSI at 70° F.The seat plug is manufactured from aluminum silicon bronze, and available with a choice of Kel-F or Vespel seat insert. This valve offers low torque operational features that include a Ethylene Propylene Rod T-Seal, a Teflon coated stainless steel seal ring, and a Delrin thrust washer. This design offers excellent seal capabilities for hot and cold temperatures.

▊主要技術參數:

1、最大工作壓力:5000 pisg

2、進口接口:1/2”NPT ~ 1”NPT

3、出口接口:1/2”NPT ~ 1”NPT

4、閥座材料:聚三氟氯乙烯或聚酰亞胺

▊規格SPECIFICATIONS:

閥體Valve Body:黃銅Brass

座椅插頭Seat Plug:鋁合金Silicon青銅,帶Kel-F或Vespel座椅Aluminum Sillicon Bronze w/ Kel-F or Vespel seat

閥蓋Bonnet:黃銅Brass

閥桿Stem:黃銅Brass

T形密封桿Rod T-Seal:乙烯丙烯,帶聚四氟乙烯支承環Ethylene Propylene w/ Teflon back-up rings

推力W墊圈Delrin Thrust W asher-Delrin

密封圈Seal Ring:聚四氟乙烯涂層不銹鋼Teflon coated stainless steel

70°F時,閥體的最大工作壓力為-5000 PSI

Maximum valve body operating pressure- -5000 PSI @ 70°F

Cv值Cv factor:3.1

▊裝配說明ASSEMBLY INSTRUCTIONS:

1、在180-55K或V)閥座塞螺紋上涂抹Braycote 803潤滑脂,并將其放入閥體中。

2、使用18R2-2閥桿,順時針將閥座塞擰到固定位置。

3、將18R2-6密封墊圈放置在閥體頂部密封面上。

4、將18R2-14止推墊圈放入18R2-3A閥蓋的凹槽中。

5、將18R2-3A閥蓋總成順時針擰到閥體上,直至固定位置。

6、將18R2-3A閥蓋扭轉至190英尺/磅。

7、安裝180-5手柄、306-11彈簧和306-17螺母。

注:閥蓋組件采用Bracote 803預潤滑。如果需要額外潤滑使用Braycote 803。鹵代碳不是一種可接受的T形密封桿潤滑劑。

1. Apply Braycote 803 grease to the 180-55K or V) seat plug thread and place in body.

2. Using the 18R2-2 stem, screw the seat plug clockwise to seated position.

3. Place 18R2-6 seal washer on top valve body sealing surface.

4. Place the 18R2-14 thrust washer into groove of 18R2-3A bonnet.

5. Screw 18R2-3A bonnet assembly over valve body clockwise to seated position.

6. Torque 18R2-3A bonnet to 190 Ft/lbs.

7. Install 180-5 handle, 306-11 spring, and 306-17 nut.

NOTE: The bonnet assembly is pre- lubed with Bracote 803. If additional lubrication is required

use Braycote 803. Halocarbon is not an acceptable lubricant for the Rod T-Seal.

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