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manufactured in the usa

PureFlex® Fluoropolymer Lined Butterfly Valve, 860 Series

The 860 Series valve body is manufactured from Durcor®, PureFlex's proprietary advanced fiber-reinforced composite. Durcor® has tensile and compressive strengths that rival steel along with outstanding impact resistance that is unmatched in the industry. Its reinforcing fibers are long and interlocked; this interlocked reinforcement system transfers loads throughout the fiber matrix, making the 860 Series valve body virtually indestructible. The strength of Durcor® enables the 860 Series valve to maintain ANSI face-to-face dimensions, be direct threaded for lug design, and allows it to be installed in any type of piping system without the need for special considerations. Durcor® excels in temperatures from -60ºF to +250ºF and has only .001" of thermal expansion across its full temperature range.

The 860 Series is used for shut-off, throttling and transfer of many corrosive and erosive fluids, and has the purity required for ultra-pure and food applications.

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Product Features & Benefits

  • STRENGTH OF STEEL: It has tensile and compressive strengths that rival steel, it is only ½ the weight, and has outstanding impact resistance that is unmatched in the industry.
  • ADVANCED FIBER REINFORCED COMPOSITE BODY: The strength of Durcor®enables the 860 Series valve to maintain ANSI face-to-face dimensions, be direct threaded for lug design, and allows it to be installed in any type of piping system without the need for special considerations.
  • WITHSTANDS AGGRESSIVE CHEMICALS: The Durcor® vinyl ester backbone provides excellent protection when exposed to aggressive chemicals and hostile atmospheres such as acid sprays, bleach, salt water and high chlorides.
  • LIGHTWEIGHT ADVANTAGE: The lightweight advantage of the 860 series butterfly valve reduces the need for extra equipment and personnel for valve installation and reduces pipe strain once installed.
  • RESILIENT SEATED BUTTERFLY VALVE TECHNOLOGY: The valve is bubble tight at full rated pressure of 150psi, has triple stem seals for unmatched leak free dependability, and it can operate at temperatures between -60°F to +250°F (consult factory for higher temperature applications).
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Technical Details

    Materials

    860 Series Valve Parts List

    Item Description Standard Material Qty.
      * = Raw material compliant with requirements set forth in FDA reg. 21 CFR 177.2600
    Viton® = Registered trademark of Dupont Dow Elastomers
    1a & 1b Body Durcor® 1
    2 omitted    
    3 Nut Gr. 2H ASTM A194-PTFE Coated 2
    4 Stem Extension (4" & 6" Sizes Only) CF8M Stainless Steel 1
    5 Disc EPDM \ Nickel Plated DCI 1
    6 Seat *Food Grade EPDM (ASTM D2000 #MICA714Z) 1
    7 Taper Ring 304 Stainless Steel 2
    8 Bearing PTFE-Composite 2
    9 Atmospheric Seal Viton® (FKM) 1
    10 Socket Head Cap Screw Gr. B7 ASTM A193 Zinc Plated 4
    11 ISO Mounting Flange Durcor® 1
    12 Hex Head Cap Screw Gr. B7 ASTM A193 Zinc Plated 2

    Valve Options

    Item Optional Material
      Hastelloy® is a registered trademark of Haynes International, Inc.
    Hypalon® is a registered trademark of Dupont Dow Elastomers.
    10 Gr. B840 ASTM A193 Stainless Steel
    Hastelloy® C276 ASTM B574
    6 Viton® (FKM)
    Hypalon® (CSM)
    5 UHMWPE \ Stainless Steel
    CF8M Stainless Steel
    CW6M (Hastelloy® C276) ASTM A494
    Titanium Gr. C-2 ASTM B367
    12 Gr. B840 ASTM A193 Stainless Steel
    Hastelloy® C276 ASTM B574
    4 CW6M (Hastelloy® C276) ASTM A494
    Titanium Gr. C-2 ASTM B367

    Dimensions & Weights

    Series 860 Butterfly Valves

    Size
    in.
    (mm)    		 A
    in.
    (mm)    		 B
    in.
    (mm)    		 C
    in.
    (mm)    		 D
    in.
    (mm)    		 E
    in.
    (mm)    		 F*
    in.
    (mm)    		 Shaft ISO Flange Wafer Lug O
    in.
    (mm)    		 P
    in.
    (mm)    		 Weight
    lb.
    (mm)
    G
    in.
    (mm)    		 H
    in.
    (mm)    		 J
    in.
    (mm)    		 K
    in.
    (mm)    		 L
    in.
    (mm)    		 M
    in.
    (mm)    		 N
    in.
    (mm)    		 N
    in.
    (mm)
      NOTE:*Lined piping which exceeds the liner thickness specification of ASTM 1545 may require ring spacers to avoid disc swing.
    **12" valve size only, the operator mounting holes are offset 15° on ISO 5211 F12 bolt circle.
    2
    (50.8)    		 8 25/32
    (223)    		 8 1/4
    (209.6)    		 5 17/32
    (140.5)    		 3 39/64
    (91.7)    		 15/32
    (11.9)    		 2 1/16
    (52.4)    		 1 5/16
    (33.3)    		 5/8
    (15.9)    		 0.439
    (11.2)    		 7/16
    (11.1)    		 4.021
    (102.1)    		 1/2
    (12.7)    		 3/4
    (19.1)    		 5/8-11 4 3/4
    (120.7)    		 1 5/8
    (41.3)    		 6
    (2.7)
    3
    (76.2)    		 10 1/16
    (255.6)    		 9
    (228.6)    		 6 5/16
    (160.3)    		 5
    (127)    		 11/16
    (17.5)    		 2 19/32
    (65.9)    		 1 5/16
    (33.3)    		 5/8
    (15.9)    		 0.439
    (11.2)    		 7/16
    (11.1)    		 4.021
    (102.1)    		 7/8
    (22.2)    		 3/4
    (19.1)    		 5/8-11 6
    (152.4)    		 1 3/4
    (44.5)    		 9
    (4.1)
    4
    (101.6)    		 11 5/16
    (287.3)    		 10 1/4
    (260.4)    		 6 13/16
    (173)    		 6
    (152.4)    		 1
    (25.4)    		 3 15/32
    (88.1)    		 1 5/16
    (33.3)    		 5/8
    (15.9)    		 0.439
    (11.2)    		 7/16
    (11.1)    		 4.021
    (102.1)    		 7/8
    (22.2)    		 3/4
    (19.1)    		 5/8-11 7 1/2
    (190.5)    		 2
    (50.8)    		 14
    (6.3)
    6
    (152.4)    		 14 3/32
    (358)    		 12 7/32
    (310.4)    		 8 1/16
    (204.8)    		 8 1/4
    (209.6)    		 1 7/8
    (47.6)    		 5 1/2
    (139.7)    		 1 5/16
    (33.3)    		 1
    (25.4)    		 0.836
    (21.2)    		 7/16
    (11.1)    		 4.021
    (102.1)    		 1 1/2
    (38.1)    		 7/8
    (22.2)    		 3/4-10 9 1/2
    (241.3)    		 2 1/8
    (54.0)    		 25
    (11.3)
    8
    (203.2)    		 17 3/16
    (436.6)    		 15 3/8
    (390.5)    		 8 7/16
    (214.3)    		 10 1/4
    (260.4)    		 2 11/16
    (68.3)    		 7 3/8
    (187.3)    		 1 5/16
    (33.3)    		 1
    (25.4)    		 0.836
    (21.2)    		 7/16
    (11.1)    		 4.021
    (102.1)    		 1 1/2
    (38.1)    		 7/8
    (22.2)    		 3/4-10 11 3/4
    (298.5)    		 2 1/2
    (63.5)    		 34
    (15.3)
    10
    (254)    		 21 3/32
    (535.8)    		 18 13/16
    (477.8)    		 12 5/16
    (312.7)    		 12 1/4
    (311.2)    		 3 5/8
    (92.1)    		 9 9/16
    (242.9)    		 1 3/4
    (44.5)    		 1 3/8
    (34.9)    		 1.000
    (25.4)    		 9/16
    (14.3)    		 4.921
    (125)    		 1 1/2
    (38.1)    		 1
    (25.4)    		 7/8-9 14 1/4
    (362)    		 2 1/2
    (63.5)    		 52
    (23.4)
    12
    (304.8)    		 23 3/4
    (603.3)    		 21
    (533.4)    		 13 5/16
    (338.1)    		 14 3/8
    (365.1)    		 4 7/16
    (112.7)    		 11 9/16
    (293.7)    		 2 1/8
    (54)    		 1 3/8
    (34.9)    		 1.000
    (25.4)    		 9/16
    (14.3)    		 4.921
    (125)    		 1 1/2
    (38.1)    		 1
    (25.4)    		 7/8-9 17
    (431.8)    		 3
    (76.2)    		 65
    (29.3)

    Wafer and Lug Valves with Gear

    Size
    in.
    (mm)    		 A
    in.
    (mm)    		 B
    in.
    (mm)    		 C
    in.
    (mm)    		 D
    in.
    (mm)    		 E
    in.
    (mm)    		 F
    in.
    (mm)
    2 — 4
    (76.2) (152.4)    		 6 1/4
    (158.7)    		 5
    (127)    		 2 37/64
    (65.5)    		 1 7/64
    (28.2)    		 2 1/16
    (52.3)    		 6
    (152.4)
    6 — 8
    (152.4) (203.2)    		 6 3/4
    (171.4)    		 5
    (127)    		 2 37/64
    (65.5)    		 1 7/64
    (28.2)    		 2 1/16
    (52.3)    		 8
    (203.2)
    10 — 12
    (254)(304.8)    		 7 1/4
    (184.1)    		 6 23/32
    (170.7)    		 2 63/64
    (75.7)    		 1 3/8
    (34.8)    		 2 1/2
    (63.5)    		 12
    (304.8)

    Fasteners for Installation of Lug Bodies

       
    Valve Size 2 3 4 6 8 10 12
    Number of Fasteners 8 8 16 16 16 24 24
    Thread Call-out 5/8 - 11 UNC 3/4 - 10 UNC 7/8 - 9 UNC
    "A" Length of Fastener 1-1/2 1-3/4 1-3/4 2 2-1/4 2-1/2 2-1/2

    Fasteners for Installation of Wafer Bodies

       
    Valve Size 2 3 4 6 8 10 12
    Number of Fasteners 4 4 8 8 8 12 12
    Thread Call-out 5/8 - 11 UNC 3/4 - 10 UNC 7/8 - 9 UNC
    "B" Length of Fastener 5 5-1/2 5-3/4 6-1/2 6-3/4 7-3/4 8-1/4

    Technical Data

    Cv at Disc Angle of Rotation

    Cv Data

    Valve SizeFull Open Cv
    2"112
    3"334
    4"570
    6"1415
    8"3110
    10"5223
    12"7944

    Disc Rotation (Degrees)

    Disc Position (degrees)Percent of Total Cv
    200
    303
    409.1
    5016.3
    6027.4
    7047
    8074.5
    90100

    Sizing Torques

    Valve SizeMax. Differential Pressure
    2"152 in.-lbs.
    3"218 in.-lbs.
    4"350 in.-lbs.
    6"794 in.-lbs.
    8"1210 in.-lbs.
    10"2360 in.-lbs.
    12"3617 in.-lbs.

    Pressure Rating

    Disc Options

    • EPDM/PLATED DCI
    • HYPALON ®/PLATED DCI
    • 316 S.S.
    • TITANIUM GR. C-2
    • UHMWPE/CD4MCu S.S.

    Specifications

    • SIZES: 2” to 12” (Flanged Wafer and Lug Body)
    • PRESSURE: Full Vacuum to 150 psi
    • TEMPERATURE: -60°F to +250°F
    • FLOW: Bi-Directional
    • CONFORMANCE: Conforms to all applicable standards API 609, DIN, 3203, ISO 5752 and BS EN593
    • FLANGE ADAPTABILITY: ASME B16.5 Class, 150 Drilling Class B16.1 Class 125, Other Flange Drilling are available (Consult customer service for higher temperature ratings)
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    Literature

    Certifications

    Certified to ISO 9001:2015
    CRN
    PED CE 573270 Certified
    PED UKCA 768591 Certified
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