Worm wheel single flange butterfly valve

Specifications 1.Worm gear flange butterfly valve

2.CE & ISO9001:2008 Certificated

3.Excellent Quality

4.Fast Delivery

Worm wheel single flange butterfly valve                                                    Y.CREATE
Novel design, reasonable, unique structure, light weight, easy to operate open and close quickly;
2.Telescopic butterfly valve can be adjusted and diversion effect and compensate for pipe temperature difference generated by thermal expansion and contraction function, but also for the installation of replacement, to facilitate the maintenance of the valve.
3, sealing parts can be adjusted to be replaced, reliable sealing performance characteristics. Executive the standard SD343H worm wheel flange telescopic butterfly valve
Design standards: GB/T12238-1989
Flange connecting dimensions: GB/T9113.1-2000; GB/T9113.2-2000
GB/T9115.1-2000; GB/T9115.2-2000
Pressure test: GB/T13927-1992; JB/T9092-1999   Main parameters SD343H

Nominal diameter	DN(mm)	50~2000
Nominal pressure	PN(MPa)	0.6	1.0	1.6
Test pressurePs(MPa)	Strength test	0.9	1.5	2.4
	Seal test	0.66	1.1	1.76
	Gas seal test	0.6	0.6	0.6
Suitable medium	Air, water, sewage, steam, gas, oil, and so on.
Drive form	Manual, worm transmission, gas transmission, electricity transmission.

 Main parts the material SD343H worm flange telescopic butterfly valve

Part Name	Material
Body	Cast iron, cast steel, stainless steel, chrome molybdenum steel, alloy steel
Disc	Cast steel, alloy steel, stainless steel, chromium molybdenum steel
Ring	Rubber, PTFE, polyethylene internal fat, stainless steel
Stem	2Cr13, stainless steel, chrome molybdenum steel
Telescopic tube	Cast iron, cast steel, stainless steel, chromium molybdenum steel
Filler	Flexible Graphite

                        

Nominal Path	Dimensions (reference value)							Flange dimensions and bolt hole size (standard value)
	H	H1	Design the most Large length	Design the most Small length	The Design the most The Small length	A	B	0.6MPa				1.0MPa				1.6MPa
Millimeter								D	D1	D2	n-d	D	D1	D2	n-d	D	D1	D2	n-d
50	80	309	186	156	171	180	200	140	110	88	4-14	165	125	99	4-18	165	125	99	4-18
65	95	337	190	160	175	180	200	160	130	108	4-14	185	145	118	4-18	185	145	118	4-18
80	98	347	198	166	182	180	200	190	150	124	4-18	200	160	132	8-18	200	160	132	8-18
100	114	373	228	188	208	180	200	210	170	144	4-18	220	180	156	8-18	220	180	156	8-18
125	128	405	240	201	220	180	200	240	200	174	8-18	250	210	184	8-18	250	210	184	8-18
150	139	440	246	206	226	270	280	265	225	199	8-18	285	240	211	8-22	285	240	211	8-22
200	174	612	265	219	242	400	425	320	280	254	8-18	340	295	266	8-22	340	295	266	12-22
250	215	693	295	240	267	400	425	375	335	309	12-18	395	350	319	12-22	405	355	319	12-26
300	245	747	308	254	282	450	560	440	395	363	12-22	445	400	370	12-22	460	410	370	12-26