(Double Flange Butterfly Valve)

(Double Flange Resilient Butterfly Valve)

(Centerline Flanged Resilient Butterfly Valve)

(Concentric Flanged Resilient Butterfly Valve)

Rubber Lined / EPDM Coated Flanged Butterfly Valve)

Long Pattern Double Flange Butterfly Valve

Standard Applicable
Face-to-face:
EN 558 Series 13

ISO 5752 Series 13
API 609 Table 2c
BS 5155 short
NF E 29-305.1

Flange accommodation:
DIN 2501 PN 6/10/16/25
ANSI B 16.5, Class 150
MSS SP44 Class 150
AWWA C 207
AS 2129 Table D and E
BS 10 Table D and E
JIS B 2211-5 K
JIS B 2212-10 K
Flange Surface Design: DIN 2526, Form A-E, ANSI RF
Top flange:  EN ISO 5211  NF E 29-402
Marking:  DIN EN 19
Tightness check:
EN 12266 (Leakage Rate A)
ISO 5208, Category 3
API 598 Table 5
ANSI B 16-104, Class VI

Specification
Pressure Rating: PN6,10,16
Size Range:   DN50~DN2000
Seat Ring:    PTFE, EPDM, NBR, SILICON, VITON

Operator:   Lever, Gear, Electric, Pneumatic, Hydraulic
Materials:    Cast Iron, Cast Steel, Alloy Steel, Duplex Steel
Standard:  C22.8 (1.0460) / GP240GH (1.0619/GS-C25),
Low temperature: TSTE355 (1.0566)
High temperature:  16Mo3 (1.5415) / GS-22Mo4 (1.5419),13CrMo4-5 (1.7335) / GS-17CrMo55 (1.7357)
Stainless steel1:  .4401 / 1.4404 / G-X6CrNi18.9(1.4308),G-X6CrNiMo18.10 (1.4408)

Application: Steam, gases, hot water, thermal oil, process water, Water, Chemical Industry, ammonia etc.