Intervalve DXR double flanged range of valves are double eccentric design butterfly valves. These are available in cast as well as fully fabricated design. The face to face dimensions can be either as per BS-EN (Series BC & BF) or as AWWA (Series AC & AF).

These valves incorporate a double offset disc design, which practically eliminates any seat wear. The fully replaceable seat provided on the disc periphery is field replaceable and is capable of achieving bi-directional sealing. The rubber seat  seals against a Stainless Steel seat ring integrally welded with the body.


MODEL VARIANTS:
THERE ARE FOUR DISTINCTLY DIFFERENT MODELS AVAILABLE IN THE IVDR RANGE. EACH DESIGNED TO MEET SPECIFIC APPLICATION REQUIREMENTS, TECHNICAL SPECIFICATIONS OF THESE MODELS ARE TABULATED BELOW WITH SHORT DESCRIPTION OF EACH MODEL VARIANT.

MODEL

IVDXR-BFL

IVDXR-BF

IVDXR-BC

IVDXR-AC

GENERAL DESIGN EN 593 / IS 13095

AWWA C504

FACE TO FACE DIMENSION Short Series as per BS 5155, Series 13 as per EN 588-1(EN 593), Short as per ISO 5752 Tab-4

AWWA C504

TOP FLANGE ISO 5211

ISO 5211

INSPECTION & TESTING EN 12266 PT-1 / IS 13095

AWWA C504

FLANGE STANDARD DIN EN 1092-1 & 2, BS 4504 / IS 6392 / ANSI B 16.47 /
B 16.47

ASME B 16,1 /
AWWA C207


MODEL

IVDXR-BFL

IVDXR-BF

IVDXR-BC

IVDXR-AC

VALVE TYPE Flanged End Double Offset Disc Butterfly Valve of Fabricated Construction Flanged End Double Offset Disc Butterfly Valve of Cast Construction
BODY TYPE Flanged Short Body
BODY SEAT Stainless Steel Ring Welded on to Valve Body Stainless Steel Ring Bolted on to Body (Replaceable)
DISC TYPE Double Offset Mounted on Stub Shafts
DISC SEAL (SEAT) Replaceable 'O' Ring, Clamped on Disc

Replaceable Type Clamped on Disc Edge with Anchoring Rib

 
SHAFTS/SPINDLE Stub Shafts (DE & NDE), Blow Out Proof

Stub Shafts Blow Out Proof

Stub Shafts (DE & NDE), Blow Out Proof
SIZE RANGE DN 600 - DN 1200 DN 400 - DN 1200 DN 65 - DN 2400 DN 80 - DN 1800
PRESSURE RATING PN 1.0, PN 2.5 PN 6, PN 10 PN 6, PN 10, PN 16 AWWA C504 CL-75 / 150
OPTG TEMP 0 C TO 180 C 0 C TO 180 C 0 C TO 180 C 0 C TO 180 C
SEAT TIGHTNESS Tightness Shut Off Tightness Shut Off Tightness Shut Off Tightness Shut Off
OPERATION Worm Gear / Electric/ Pneumatic Actuator
MATERIAL OF CONSTRUCTION

 

IVDXR-BFL

IVDXR-BF

IVDXR-BC

IVDXR-AC

BODY & DISC Carbon Steel Plates / Sections as per IS 2062, IS 2002, A516 GR 70, Stainless Steel Plates / Sections SS 304 / SS 316 CI, SGI, WCB
CF8, CF8M

CI, SGI, WCB
CF8, CF8M

BODY SEAT Stainless Steel SS 304 / SS 316 Stainless Steel SS 304 / SS 316 or SS 410
CLAMPING RING Carbon Steel IS 2062 / A516 GR. 70, Stainless Steel SS 304, SS 316 Carbon Steel IS 2062 GR. B, Stainless Steel SS 304, SS 316
DISC SEAL (SEAT) NBR, EDPM, Silicon, Viton NBR or EPDM
SHAFTS SS 410 / 17.4 PH / SS 316 SS 410 / 17.4 PH / SS 316
SHAFT BEARING Self Lubricating (Steel + PTFE) Self Lubricating (Steel + PTFE)
 


 
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MATERIAL

1 BODY 1 ISO2062 Gr.B 11 TOP SHAFT 1 SS410 / SS316 SH /17.4 PH
2 BODY SEAT 1 CA15 / SS304 / SS316 12 O-RING  HOLDER 1 SS304 / SS316
3 DISC 1 ISO2062 Gr. B / SS304 / SS316 13 O-RING TOP BUSH-(OD) 2 NITRILE / EDPM / VITON
4 DISC SEAL 1 NITRILE/EDPM/VITON/SILCONE 14 O-RING  TOP BUSH-(ID) 2 NITRILE / EDPM / VITON
5 SEAT CLAMPING RING 1 ISO2062 Gr.B / SS304 / SS316 15 TOP SHAFT RETAINER 1 STEEL + AL. BRONZE
6 SHAFT O-RING 2 NITRILE / EDPM / VITON 16 THRUST PAD 1 AL. BRONZE
7 BEARING BOTTOM 2 STEEL+PTFE / SS316+PTFE 17 GASKET 1 CAF / NITRILE
8 BOTTOM SHAFT 1 SS410 / SS316SH /17.4PH 18 BOTTOM COVER 1 ISO2062 Gr.B / SS304 / SS316
9 TAPER PIN 3 SS316 SH / 17.4PH 19 WORM GEAR 1 CI HOUSING+EN8 I/P SHAFT
10 BEARING TOP 2 STEEL+PTFE / SS316+PTFE 20 HAND WHEEL 1 MS+EPOXY

 
 
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MATERIAL

1 BODY 1 CI / SGI / WCB 11 TOP SHAFT 1 SS410 /SS316SH /17.4PH
2 BODY SEAT 1 CA15 / SS304 / SS316 12 O-RING  HOLDER 1 SS304 / SS316
3 DISC 1 CI / SGI / WCB / CF8 / CF8M 13 O-RING TOP BUSH-(OD) 2 NITRILE / EDPM / VITON
4 DISC SEAL 1 NITRILE/EDPM/VITON/SILCONE 14 O-RING  TOP BUSH-(ID) 2 NITRILE / EDPM / VITON
5 SEAT CLAMPING RING 1 ISO2062 Gr.B / SS304 /SS316 15 TOP SHAFT RETAINER 1 STEEL + AL. BRONZE
6 BODY SEAL 1 NITRILE / EDPM / VITON 16 THRUST PAD 1 AL. BRONZE
7 BEARING BOTTOM 1 STEEL+PTFE / SS316+PTFE 17 GASKET 1 CAF / NITRILE
8 BOTTOM SHAFT 1 SS410 / SS316SH /17.4PH 18 BOTTOM COVER 1 ISO2062 Gr.B / SS304 / SS316
9 TAPER PIN 1 SS316 SH / 17.4PH 19 WORM GEAR 1 CI HOUSING+EN8 I/P SHAFT
10 BEARING TOP 1 STEEL+PTFE / SS316+PTFE 20 HAND WHEEL 1 MS+EPOXY
 
 
 
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Srl. # PART DESCRIPTION QTY.

MATERIAL

1 BODY 1 CI/SGI/WCB 11 TOP SHAFT 1 SS410 /SS316SH /17.4PH
2 BODY SEAT 1 CA15/SS304/SS316 12 O-RING  HOLDER 1 SS-304/SS-316
3 DISC 1 CI/SGI/WCB/CF8/CF8M 13 O-RING TOP BUSH-(OD) 2 NITRILE/EDPM/VITON
4 DISC SEAL 1 NITRILE/EDPM/VITON/SILCONE 14 O-RING  TOP BUSH-(ID) 2 NITRILE/EDPM/VITON
5 SEAT CLAMPING RING 1 ISO2062 Gr.B/SS304/SS316 15 TOP SHAFT RETAINER 1 STEEL + AL. BRONZE
6 BODY SEAL 1 NITRILE/EDPM/VITON 16 THRUST PAD 1 AL. BRONZE
7 BEARING BOTTOM 1 STEEL+PTFE/SS316+PTFE 17 GASKET 1 CAF / NITRILE
8 BOTTOM SHAFT 1 SS410 / SS316SH /17.4PH 18 BOTTOM COVER 1 ISO2062 Gr.B/SS304/SS316
9 TAPER PIN 1 SS316 SH / 17.4PH 19 WORM GEAR 1 CI HOUSING+EN8 I/P SHAFT
10 BEARING TOP 1 STEEL+PTFE/SS316+PTFE 20 HAND WHEEL 1 MS+EPOXY
 

  • Perfectly machined stainless steel seat ring with specially designed sealing profile of the rubber ensures continued tight shut off sealing and makes it an ideal choice for the flow isolation and shut off duties.

  • The double offset disc design ensures minimal seat wear and provides excellent throttling capabilities, which makes it an ideal choice for flow control duties.

  • Adjustable mechanical stopper provided on valve body prevents over travel of disc and ensures precise closing.

  • Actuator (operator) mounting flange standardized to ISO 5211 with provision of locational spigot, ensures direct mounting of actuators and gear boxes without any radical loading of shafts.

  • Both Drive end and non drive end shafts are fully blowout proof and guided by self lubricated bush bearings.

  • Axial thrust bearing provided on valves, ensures precise positioning of the disc and prevents unequal loading of the valve seat.

  • Special shaft sealing arrangement ensure zero fugitive emission and enables field replacement of shaft sealing elements.

  • The seat (sealing element) provided on the disc is fully field replaceable and ensures optimum seating / unseating torque.

  • A choice of seat materials makes the valve suitable for gas or liquid services with a host of applications.

Specifications & Dimensions are subject to change without prior notice