Loose Liner Wafer-Type Butterfly Valve c/w Lever

Valve Type Wafer Type Butterfly Valve (Center Line / Concentric Design)
Body Material Ductile Iron (ASTM A536 Grade 65-45-12 / GGG-50)
Disc Material Ductile Iron + Nickel Plated (Electroless Nickel Plating – ENP)
Stem Material Stainless Steel (AISI 410 / 304 / 316)
Seat Material Replaceable Soft Seat – EPDM / Buna-N / Viton / PTFE (Specify)
Nominal Size 2″ – 24″ (DN50 – DN600)

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설명

Technical Datasheet: Wafer Type Butterfly Valve

(Ductile Iron Body / Nickel Plated Disc / Pinless Design / Blow-Out Proof Stem / Replaceable Seat)

General Information

Item	Standard Configuration	User Specification / Remarks
밸브 유형	Wafer Type Butterfly Valve (Center Line / Concentric Design)
본체 재질	연성 주철 (ASTM A536 Grade 65-45-12 / GGG-50)	Epoxy coated
Disc Material	Ductile Iron + Nickel Plated (Electroless Nickel Plating – ENP)	Corrosion resistant finish
Stem Material	Stainless Steel (AISI 410 / 304 / 316)	Blow-out proof design
Seat Material	Replaceable Soft Seat – EPDM / Buna-N / Viton / PTFE (Specify)	Field replaceable
공칭 크기	2″ – 24″ (DN50 – DN600)
압력 등급	Class 125 / Class 150 / PN10 / PN16
Design Standard	API 609 / MSS SP-67 / ISO 5752
대면	API 609 Short Pattern / ISO 5752 Series 20
Flange Drilling	ASME B16.1 / ASME B16.5 / EN 1092-2
Inspection & Test	API 598 / ISO 5208
Top Flange	ISO 5211 (For direct actuator mounting)
Disc Design	Pinless / Staked Disc (No pins through disc)	Eliminates leakage paths

Bill of Materials (Main Components)

No.	Part Name	재료	비고
1	몸	연성 주철 (ASTM A536 65-45-12)	Epoxy coated (Internal/External)
2	디스크	Ductile Iron + Nickel Plated (Electroless Nickel Plating)	Pinless design – Smooth surface
3	줄기	Stainless Steel (AISI 304 / 316)	Blow-out proof design (T-head / Square drive)
4	좌석	Replaceable Soft Seat (EPDM / Buna-N / Viton / PTFE)	Field replaceable – No bonding required
5	O-Ring / Backup Ring	EPDM / Buna-N / Viton	Stem sealing
6	Bushings / Bearings	PTFE / Bronze backed PTFE	Stem support
7	Thrust Washer	PTFE / Nylon
8	Bottom Cover / Plug	Ductile Iron / Stainless Steel	With gasket
9	Handle / Gearbox	Ductile Iron / Steel (Epoxy coated)	Optional
10	Fasteners	Stainless Steel (304 / 316)	For gearbox / actuator mounting

Technical Parameters & Performance

Item	사양
Medium	Water, Wastewater, Seawater, Air, Mild Chemicals
Operating Temp.	Depends on seat material: EPDM (-30°C to +120°C) / Buna-N (-20°C to +90°C) / Viton (-20°C to +200°C) / PTFE (-30°C to +200°C)
Max Operating Pressure	Up to 200 psi / 16 bar (De-rate at high temps)
Leakage Rate	ISO 5208 Rate A (Bubble tight, zero leakage) – Soft seat
Flow Direction	Bidirectional (Standard) / Unidirectional (Optional)
Seat Type	Replaceable Resilient Seat – Line type / Cartridge type
Disc Type	Concentric (Center Line) – Pinless design
Stem Design	Blow-out proof – Retained by body / seat
Disc/Stem Connection	Pinless – Square drive / T-slot / Splined connection

Test Pressure (Reference: Class 150 / PN16)

Test Type	압력	기준
Shell (Hydrostatic)	1.5 x Rated Pressure	API 598 / ISO 5208
Seat (Hydrostatic)	1.1 x Rated Pressure	API 598 / ISO 5208
Low Pressure Seat (Air)	80 psi / 0.6 MPa	Bubble tight (Rate A)
(Note: For Class 150, typical shell test is 425 psi / 2.9 MPa)

Dimensions & Weight (Reference: Wafer Type, API 609 Short Pattern)

NPS	DN (mm)	L (Face-to-Face) mm	H (Open) mm (approx)	Weight (kg) approx
2″	50	43	85	3
4″	100	52	120	6
6″	150	56	150	10
8″	200	60	190	16
10″	250	68	230	25
12″	300	78	270	38
(Note: For larger sizes or exact dimensions, refer to certified GA drawing. Add actuator weight separately.)

Special Requirements / Options

Seat Material: EPDM / Buna-N (NBR) / Viton (FKM) / PTFE / Silicone
Disc Coating: Nickel Plated (Standard) / Nylon Coated / Epoxy Coated / Stainless Steel Disc (CF8/CF8M)
줄기 재질: Stainless Steel 304 / 316 / 17-4PH / Monel
작업: Lever / Gearbox / Pneumatic Actuator / Electric Actuator
Locking Device: Yes / No (For lever operated)
Position Indicator: Yes / No
Stem Extension: Yes / No (For buried service)
Test Certificate: EN 10204 3.1
코팅: Epoxy coating (Min. 250 microns) – Color: Blue / RAL 5015 / Custom
Special Cleaning: For Potable Water (NSF/ANSI 61) / Food grade

디자인 특징:

Feature	설명	Benefit
Pinless Disc Design	Disc is staked / mechanically secured to stem without through-pins	Eliminates potential leak paths through disc, reduces turbulence, improves flow
Blow-Out Proof Stem	Stem is retained by body and seat; cannot be ejected under pressure	Enhanced safety in high-pressure applications
Replaceable Seat	Seat is mechanically retained (not bonded) and can be replaced in the field	Low maintenance cost, extended valve life
Nickel Plated Disc	Electroless nickel plating on ductile iron disc	Excellent corrosion resistance, smooth surface reduces friction

Note: This datasheet is prepared for a Wafer Type Butterfly Valve with pinless disc, blow-out proof stem, 그리고 replaceable soft seat. Ensure selected seat material is compatible with the service medium and temperature range.

보증:

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