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(mǎn)足一般壓縮氣體歧管的要求。該閥門(mén)在70°F時(shí)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(mén)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(shù)參數：
1、最大工作壓力：5000 pisg
2、進(jìn)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(huán)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(shí)，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(shuō)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(shí)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(shí)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.