API 6D High Performance Three-Eccentric Butterfly Valve Ce

1. Compact structure: low volume, light weight and easy maintenance
2. Smooth flow channel: low flow resistance, low pressure drop and high flow
3. Three-eccentric multi-level compound seal butterfly valve: It uses the unique cam effect, so that during the valve's 90 ˇtravel the seat is totally disengaged from the disc seal ring without any friction.
Three-eccentric soft seal butterfly valve: The sealing pair is made of integral PTFE materials, which are suitable for applications with high medium cleanliness, frequent valve on-off and high requirements for sealing pair corrosion resistance. Especially it can ensure that its service life is basically the same as that of the pipe in the thermal system.
Three-eccentric metal seal butterfly valve: The sealing pair adopts a full metal seal structure. The sealing pair adopts a "hard-contact-hard" structure as shown in figure 1 pneumatic three-eccentric butterfly valve. The seal has a long service life. It is suitable for service conditions where the medium working temperature is extreme, the erosion is severe and there is the occurrence of "crystallization".
4. Strong anti-wear performance: The disc adopts a three-eccentric structure and the sealing face is subject to hard alloy overlaying welding with good anti-wear performance.
5. Valve flow characteristics: Approximate equal percentage. Control and shut-off can be realized.
The main technical parameters
Type: Straight-through flat offset casting body
Nominal diameter: DN50 ~ 1600 (NPS2 ~ 64)
Nominal pressure: PN 16 ~ 40 (Clsaa150 ~ 600)
Connection type: flange type, wafer type
Body material: A216-WCB, A351-CF8, A351-CF8M, A351-CF3,
A351-CF3M, A217-WC6, A217-WC9
Bonnet: Standard: -29 ~ 250 ˇ
High temperature (cooling fin) Type: 250 ~ 600 ˇ
low temperature (extension) type: -46~-29ˇ
See table 1 for working temperature and pressure ranges of various
materials.
Packing: PTFE, flexible graphite, nickel-based wire reinforced flexible
Graphite
Valve components
Disc type: three-eccentric rotarytype
Seat type: multi-level compound seal, soft seal, metal hard seal
See table 3 for material combination and surface treatment of body,
plug, seat and stem.
Flow characteristics: approximate equal percentage
Adjustable ratio: 30:1
Rated Cv value: See table 3 for details.
Rated travel: 0~60°or0~90°
Seat shut-off class: hard seal: ANSI Class IV, V
soft seal, multi-level compound seal: ANSI Class VI
Outline dimensions: See table 8 for details.
Nominal
PressureNominal diameterFace-to-face
dimensionsFlange connection dimensionsRF Sealing surfaceOpening
height(kg)
Reference
weightNPSDNLDKn-LCdf1HClass
15011/24016512598.44-1615.973.0263042250178150120.74-1817.592.126404521/265190180139.74-1820.7104.8269055380203190152.44-1822.3127.02750684100229230190.58-1822.3157.22780805125254255215.98-2222.3185.728501106150267280241.38-2223.9215.929401308200292345298.58-2227.0269.92112022010250330405362.012-2628.6323.82133027012300356485431.812-2630.2381.02153037014350381535476.312-3033.4412.82171051016400406595539.816-3035.0469.92188065018450432635577.916-3338.1533.422160115020500457700635.020-3341.3584.222360138024600508815749.320-3646.1692.222660152028700610835795.340-2243.076223350239032800660940900.148-2244.68642386028903690071110551009.644-2650.9972242803620
Note: For valves with PN1.6, 2.5 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-13~1-14.
Valves with PN1.6, 2.5 (MPa) have the same opening height as that of 150LB valves, as shown in the table. Reference weight is
given otherwise
Nominal
PressureNominal diameterFace-to-face
dimensionsFlange connection dimensionsRF Sealing surfaceOpening
height(kg)
Reference
weightNPSDNLDKn-LCdf1HClass
30011/240190155114.34-2219.173.0264045250216165127.08-1820.792.126505021/265241190149.28-2223.9104.8269070380283210168.38-2227.0127.02750804100305255200.08-2230.2157.228001005125381280235.08-2233.4185.729101806150403320269.912-2235.0215.9210002108200419380330.212-2639.7269.92116025010250457445387.416-3046.1323.82135042012300502520450.816-3349.3381.02162059014350762585514.420-3352.4412.82182087016400838650571.520-3655.6469.921930118018450914710628.624-3658.8533.422150138020500991775685.824-3662.0584.2223501980246001143915812.824-4268.3692.2230602380287001346920857.236-3687.47872340033003280015241055977.932-42101.69022440064003690017271170108932-45101.610102----
Note: For valves with 10.0 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-17.
Valves with PN10.0 (MPa) have the same opening height as that of 600LB valves, as shown in the table. Reference weight is
given otherwise.
ote: For valves with PN4.0,6.3 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-16~1-16.
Valves with PN4.0,6.3 (MPa) have the same opening height as that of 300LB valves, as shown in the table. Reference weight is
given otherwise.Pressure rating is 600LB flange dimensions is according to ASME B16.5 standards;
Length of the structure are adopted to ASME B16.10, API6D standards, as shown in Table 1-20.
ominal
PressureNominal diameterFace-to-face
dimensionsFlange connection dimensionsRF Sealing surfaceOpening
height(kg)
Reference
weightNPSDNLDKn-LCRFRJHRFRJdf1PEClass
60011/240241241155114.34-2222.373.0790.56.3565060250292295165127.08-1825.492.171087.926507021/265330333190149.28-2228.6104.871277.9271095380356359210168.38-2231.8127.071467.927651104100432435275215.98-2638.1157.271757.928201805125508511330266.78-3044.5185.772107.929602706150559562355292.112-3047.7215.972417.9210503308200660664420349.212-3355.6269.973027.92125062010250787791510431.816-3663.5323.873567.92145098012300838841560489.020-3666.7381.074137.921720136014350889892605527.020-3969.9412.874577.922040172016400991994685603.220-4276.2469.975087.92215021501845010921095745654.020-4582.6533.475757.92232029802050011941200815723.924-4588.9584.276359.52265034002460013971407940838.224-51101.6692.2774911.1331504700