wafer butterfly valve

NegotiableUpdate on June 28

Model

Nature of the Manufacturer: Other

Product Category: Butterfly Valve Series

Place of Origin: City, Province

Online Consult Contact Information

Overview

wafer butterfly valve

Product Details

General of Butterfly valve

Butterfly valve is a type of valve which can be used in a variety of chemical services. They are available with small dimensions allowing for use in areas where space is limited, and they allow a high coefficient of flow. A butterfly valve is composed of body, soft seat or hard seat, disc, stem, packing, notched position plate, and a lever or gear. The seat is under compression when it is mounted in the valve body, thus making a seal around the periphery of the disc both upper and lower points where the stem passes through the seat. Packing is provided forming a positive seal around the stem for added protection in case the seal formed by the seat could become damaged.

Wafer Soft Seat Butterfly Valve

Product Description

Size: DN25-DN1200
Body: Cast Iron, Ductile Iron
Disc: Stainless Steel, Cast Iron, Ductile Iron
Seat: PTFE, BNR, EPDM, VITON
Stem: Stainless Steel 304/316/416
Packing: Soft graphite
Hａnd Lever/Gear: Cast Iron or Ductile Iron
Woking pressure: PN10, PN16
Top Flange: ISO 5211
Flange drilling standard: BS4504, ANSI B16.5, JIS, DIN2501
Surface: Electric Fussion Epoxy Powder Coated.

Nominal diameter	DN(mm)	50-700
Nominal pressure	PN(MPa)	0.6	1.0	1.6	2.5	4.0
Ps(MPa) Test pressure	lntensity Test	0.9	1.5	2.4	3.75	6.0
	Seal test	0.66	1.1	1_76	2.75	4.4
	Air Test	0.6	0.6	0.6	0.6	0.6
applicable Medium	Water, steam, oil products, corrosive acid, etc.
Applicable Temperature	Carbon steel: -29-425 Stainless steel: 40-600

Material of Main Parts

Parts name	Material
Body	Cast steel, stainless steel, Cr-Mo steel, special material
Disc	Cast steel, alloy steel(Cr plated), stainless steel, Cr-Mo steel, special material
Seal ring	Stainless steel, anti-wearing material
Stem	2Crl3, 1Crl3Stainless steel, Cr-Mo steel
Packing	Flexible graphite

Main connection dimension

DN	Main outline dimension					1.0MPa		1.6MPa		2.5MPa
DN	L	H	H0	A	B	D0	n-d	D0	n-d	D0	n-d
50	43	63	235	270	110	110	4-14	125	4-18	125	4-18
65	46	70	250	270	110	130	4-14	145	4-18	145	4-18
80	46	83	275	270	110	150	4-18	160	8-18	160	8-18
100	52	105	316	270	110	170	4-18	180	8-18	180	8-18
125	56	115	340	310	110	200	8-18	210	8-18	210	8-18
150	56	137	376	310	110	225	8-18	240	8-22	240	8-22
200	60	164	430	353	150	280	8-18	295	8-22	295	12-22
250	68	206	499	353	150	335	12-18	350	12-22	355	12-26
300	78	230	570	380	150	395	12-22	400	12-22	410	12-26