Replaceable Seat Flanged Aluminum Bronze C954 Butterfly Valve

TYPE NO.: ZFAF-S01.

Size: DN700.

Pressure Rating: PN16

Body: Aluminum Bronze C954.

Disc: Aluminum Bronze C954

Seat: Replaceable Soft Rubber(EPDM).

Actuator Options: Worm Gear,

Sample: available.

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Description

Features of Flanged CF8 Butterfly Valve

C95400 Aluminum Bronze Body and Disc: Offers an excellent combination of mechanical strength, corrosion resistance, and wear resistance.
Replaceable Seat: The seat can be easily replaced while retaining the aluminum bronze body and disc, which helps reduce maintenance downtime and repair costs for core metal components.
Double-Flanged Design: Ensures a secure and reliable connection to the piping system via bolting.
Dual-Stem Configuration: Features independent upper and lower stems that support the disc from both ends. The upper stem transmits operating torque, while the lower stem acts as a guide during the opening and closing of the valve.
Superior Corrosion Resistance: The corrosion resistance of the bronze body and disc is inherent to the alloy material itself; it does not rely on the integrity of paints or metallic coatings. Suitable for a wide range of industrial and marine environments (depending on specific operating conditions).
Reliable Sealing Performance: Engineered to provide dependable shut-off and flow regulation capabilities.
Easy Maintenance: The replaceable seat design simplifies inspection and repair, helping to extend the service life of the valve.

Basic Info of Flanged Aluminum Bronze C954 Butterfly Valve

Material Options of Aluminum Bronze Butterfly Valve

Parts	Ductile Iron type	WCB type	Stainless Steel Type	Duplex Stainless Steel Type
Body	Cast Iron(GG25) Ductile Iron(GGG40/50)	A216 A217 A105(forged)	SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M	2205 2507 1.4529
Disc	Ductile Iron with Ni coated Ductile Iron with nylon coated Ductile Iron with PTFE/EPDM lined Stainless Steel Duplex Stainless Steel Bronze		SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M 2205 2507 1.4529	2205 2507 1.4529
Seat	NBR, EPDM, PTFE, Viton, Hypalon, Silicon, PFA
Stem	SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel			Duplex Stainless Steel, Monel
Actuator	Hand Lever, Worm Gear, Electric, Pneumatic

Standards Options of Replaceable Seat Butterfly Valve

ITEM	Standard
Size Range	DN50-DN1200
Design	EN593 \| API609
Face to Face	EN558 \| ISO5752 \| API608 \| BS5155-4
Top Flange	ISO5211
Flange Drilling	PN6 \| PN10 \| PN16 \| ASME B16.5 CL150 \| JIS 10K
Pressure Rating	PN6 \| PN10 \| PN16 \| PN25 \| CL150 \| JIS 10K
Tightness Test	ISO5208 \| API598 \| EN12266-1

Parameters of Double Flanged C954 Butterfly Valve

Lever op 95400 butterfly valve

DN	D		K		Nxd0		d		C		L	f	A	B	K1	01	n-d1	HXH	h
	PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16
DN50	165		125		4xφ18		99		19		108	3	139	80	65	50	4-8	11X11	30
DN65	185		145		4xφ18		118		19		112	3	146	89	65	50	4-8	11X11	30
DN80	200		160		8xφ18		132		19		114	3	150	95	65	50	4-8	11X11	30
DN100	220		180		8xφ18		156		19		127	3	177	114	90	70	4-10	11X11	30
DN125	250		210		8xφ18		184		19		140	3	178	125	90	70	4-10	14X14	30
DN150	285		240		8xφ22		211		20		140	3	201	139	90	70	4-10	14X14	30
DN200	340		295		8xφ22	12xφ22	270		20		152	3	230	170	125	102	4-12	17X17	35

worm gear op replaceable seat butterfly valve

DN	0		K		Nxd0		d		C		L	f	A	B	01	02	0-d1	d0	H
DN	PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16	L	f	A	B	01	02	0-d1	d0	H
DN250	395	405	350	355	12xφ23	12xφ28	319		22		165	3	266	198	125	102	4-12	22X22	35
DN300	445	460	400	410	12xφ23	12xφ28	370		24.5		178	4	298	223	125	102	4-12	22X22	35
DN350	505	520	460	470	16xφ23	16xφ28	429		24.5	26.5	190	4	310	254	150	125	4-14	22X22	35
DN400	565	580	515	525	16xφ28	16xφ31	480		245	28	216	4	340	278	175	140	4-18	27X27	50
DN500	670	715	620	650	20xφ28	20xφ34	582	609	265	32	229	4	430	348	175	140	4-18	36X36	50
DN600	780	840	725	770	20xφ31	20xφ37	682	720	30	36	267	5	500	410	210	165	4-22	36X36	60
DN700	895	910	840		24xφ31	24xφ37	794		325	395	292	5	560	480	300	254	8-18	φ6335	80
DN800	1015	1025	950		24xφ34	24xφ40	901		35	41	318	5	620	530	300	254	8-18	φ6335	80
DN900	1115	1125	1050		28xφ34	28xφ40	1001		36	44	330	5	685	605	300	254	8-18	φ75	100
DN1000	1230	1255	1160	1170	28xφ37	28xφ43	1112		40	50	410	5	735	670	300	254	8-18	φ80	100
DN1200	1455	1485	1380	1390	32xφ40	32xφ49	1328		45	57	470	5	917	780	350	298	8-22	φ90	100

Manufacture Process of C954 Flanged Butterfly Valve

Typical Applications of Aluminium Bronze Butterfly Valve

Seawater Cooling Circuits

Suitable for isolation in seawater intake and cooling water piping systems. These valves feature a body and disc made of C954 aluminum bronze, offering excellent corrosion resistance without the need for protective coatings.
Seawater Desalination Plant Intake Systems**

Suitable for seawater intake and pre-treatment piping (provided that operating conditions fall within the valve’s pressure rating). The replaceable seat design facilitates scheduled maintenance of the sealing components.
Marine and Shipboard Water Systems

Suitable for various seawater transport pipelines and auxiliary cooling circuits. The double-flanged connection ensures a secure installation between adjacent pipe sections.
Coastal Industrial Facilities

Ideal for cooling water and utility water supply networks in coastal plants. In such environments—where both the internal medium (fluid) and the external, high-salinity atmosphere influence material selection—this product serves as an excellent choice.

NOTE: Specific application suitability depends on the chemical characteristics of the water, temperature, flow velocity, pressure, and the materials used for the valve seat and stem.

Certificates of Zfa Valve - Chinese Leading Butterfly Valve Supplier

WRAS

ISO 9001

EAC Russia

FAQ of CF8 Replaceable Dovetail Seat Butterfly Valve

1. Is this C954 aluminum bronze butterfly valve suitable for seawater environments?

This valve may be considered for use in seawater systems; however, its suitability depends on the valve’s overall configuration and the specific operating conditions. Factors such as water quality, temperature, flow velocity, suspended solid content, and the potential for stagnant periods must be evaluated comprehensively. Furthermore, the valve seat, stem, and other components exposed to the medium must also meet the requirements of the operating conditions.

2. Are C954 aluminum bronze and nickel-aluminum bronze the same thing?

No. C95400 aluminum bronze is not interchangeable with nickel-aluminum bronze grades such as C95800, as they differ in chemical composition and material properties. If a specific bronze grade is specified for a project, always verify it against the material certificate before approving the use of the valve.

3. What material should be chosen for the seat of this bronze butterfly valve?

The choice of seat material should be based on the actual fluid composition, temperature, pressure, and frequency of operation. For water-based media, EPDM (ethylene propylene diene monomer) is typically a suitable option; however, if the medium contains oil, a different elastomer may be required. If the seawater contains chemical treatment agents, please provide the names and concentrations of these chemicals so that their compatibility with the seat material can be assessed.

4. Is a “dual-stem” design the same as a “double-offset” design?

No, they are not the same. A “dual-stem” design refers to a configuration where the valve stem is split into upper and lower sections, whereas “double-offset” refers to the positional relationship of the valve shaft relative to the valve disc and the sealing geometry. Having a split-stem design does not automatically mean that a butterfly valve features a “double-offset” design.

5. Can this double-flanged butterfly valve be used in an end-of-line (dead-end) application?

No. Butterfly valves with replaceable (soft) seats cannot be used at the end of a pipeline. If such an application is required, a flanged butterfly valve with a vulcanized (bonded) seat should be selected instead.

6. What information is required when requesting a quote for this valve?

Please provide the nominal size, operating pressure and maximum differential pressure, temperature range, fluid composition, flange standard, face-to-face dimension, and method of operation. Specify C954 aluminum bronze for the valve body and disc, and clearly indicate the required materials for the seat and stem. Additionally, please state whether material certificates, inspection documentation, or project approval documents are required upon delivery.