Valve Stem Seals
Stem fugitive emissions.
Enviroflex 500 is a low-emission valve stem sealing system. Supplied as a five ring set, consisting of three molded graphite rings and two braided header rings specially formulated from high-performance carbon yarn. Enviroflex 500 has been developed for use in Linear and Rotary valves and has exceeded the most stringent requirements for fugitive emissions, resulting in less product loss and reduced emission penalties. Where PTFE is of concern as a potential source of corrosion, select Enviroflex 506.
Enviroflex 500
Typical Applications: high integrity valve stem sealing to reduce fugitive emissions in the petrochemical and chemical industry
Typical uses: valve stem seals
- Temperature: 550°C (1022°F)
- Max Pressure: 86 MPa (12470 psi)
- Max Shaft Speed: NA
- pH Limits: 0-14
GR160
Typical Applications: high temperature, high pressure valve applications
Typical uses: valve stem seals / pump packing
- Temperature: 200°C / 550°C (-328°F / 1022°F)
- Max Pressure: 30 MPa (4350 psi)
- Max Shaft Speed: 10 m/s (1970 fpm)
- pH Limits: 0-14
GR163
Typical Applications: high temperature, high pressure valve applications
Typical uses: valve stem seals / pump packing
- Temperature: 200°C / 300°C (-328°F / 572°F)
- Max Pressure: 30 MPa (4350 psi)
- Max Shaft Speed: 15 m/s (2950 fpm)
- pH Limits: 0-14
SS6AR
Typical Applications: for all types of equipment including pumps, agitators and valves handling steam, water, mild chemicals, oils and distillates
Typical uses: valve stem seals / pump packing
- Temperature: 400°C (752°F)
- Max Pressure: 7 MPa (1015 psi)
- Max Shaft Speed: 15 m/s (2950 fpm)
- pH Limits: 4-10
304
Typical Applications: power generation, chemical and petrochemical industries
Typical uses: valve stem seals / pump packing
- Temperature: -85°C / 430°C (-120°F / 806°F)
- Max Pressure: 21 MPa (3045 psi)
- Max Shaft Speed: 20 m/s (3940 fpm)
- pH Limits: 0-14
26D
Typical Applications: chemical, food, pharmaceutical, oxygen, paint, petrochemical and brewing industries; recommended for aggressive chemicals, powerful oxidants or vacuum/gas sealing
Typical uses: valve stem seals / pump packing
- Temperature: -85°C / 260°C (-120°F / 500°F)
- Max Pressure: 14 MPa (2030 psi)
- Max Shaft Speed: 3 m/s (590 fpm)
- pH Limits: 0-14