PTFE Lined Safety Valve

PTFE Lined Safety Valve is a safety valve successfully developed by our company in the field of chemical industry based on advanced technology at home and abroad. The valve is an automatic pressure re

PTFE Lined Safety Valve is a safety valve successfully developed by our company in the field of chemical industry based on advanced technology at home and abroad. The valve is an automatic pressure relief device for pressure equipment, pressure vessels and pipelines with high-risk corrosive media such as chlor alkali chemical industry and hydrochloric acid. The key parts are made of fully lined tetrafluoroethylene (PFA, F46), which is resistant to hydrochloric acid, strong corrosion and other media. The valve body is chemically treated by ion pulse nitriding or lined with polytetrafluoroethylene (PFA, F46) to increase the corrosion resistance. The anti external leakage of the valve adopts the double sealing of corrosion-resistant bellows or fluororubber O-ring to effectively prevent the external leakage of media, which fully meets the national sealing performance standard. It is an updated product in the field of corrosion-resistant chemical valves such as hydrochloric acid and sulfuric acid.

Standards compliance
Design and Manufacture: GB/T 12243-1989, ASME PTC 25.3, API RP 520, 521, API 526, API 527, EN ISO 4126
Face to face(end to end): GB/T14087-1993, JB/T6441-1992, JB/T2203-1999, JB/T9624-1999, JB/T53170-1999  
Flanged connection: ASME B16.5, DIN 2543~2545, EN 12627
Test and inspection: A ISO 5208, API 598, DIN 3230, MSS SP-117
Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex or Other Specials 
Ends Connections: Flanged(FF, RF, RTJ) to international standards 
Sizes Range : 1/2”~12” (DN15~DN300)
Pressure Class: ANSI CL150, PN10, PN16

Materials for main parts
Body: ASTM A216 WCB 
Nozzle: 2Cr13
Adjusting ring: 2Cr13 
Guide sleeve: 2Cr13
Bonnet: ASTM A216 WCB 
Spring: 50CrVA
Stem: 2Cr13 
Lever: ZG200-400
Adjusting bolt: AISI 1045 
Cap: ZG200-400

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