KPM- pneumatic bellows valve

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所屬類別：Quick high performance pneumatic control valve

KPM- pneumatic bellows valve is in single seat pneumatic (sleeve) based control valve with bellows for sealing, the guide structure, valve has the advantages of compact structure, with a streamlined S channel, the pressure drop, flow is large, wide adjustable range, high precision flow characteristics, conforms to the IEC534 standard. Valve leakage in line with ANSI B16.104 standard.

Characteristic.
The pneumatic bellows valve equipped with multi spring diaphragm actuator, which has the advantages of compact structure, large output force. Products comply with GB/T4213-92.

Applicable scene:
The pneumatic bellows valve on the valve cover with bellows seal structure, suitable for regulating extremely toxic, flammable volatile and rare and precious metal medium. In addition the pneumatic bellows seal valves can also be used in the vacuum.

Technical parameters:

Nominal diameter (DN)		20	25	32	40	50	65	80	100	125	150	200	250	300
Seat diameter (dn)		20	25	32	40	50	65	80	100	125	150	200	250	300
The rated flow coefficient (KV)	Single seat	6.9	11	17.6	27.5	44	69	110	176	275	440	630	875	1250
The rated flow coefficient (KV)	Sleeve	6.3	10	16	25	40	63	100	155	250	370	580	900	1300
To allow pressure (MPa)	Single seat	3.8	3.2	3.0	2.0	1.8	1.5	1.4	1.0	0,7	0.6	0.5	0.3	0.1
To allow pressure (MPa)	Sleeve	6.4	6.4	5.2	5.2	4.6	4.6	3.7	3.7	3.5	3.1	3.1	2.6	2.2
Nominal pressure (MPa)		1.6、2.5、4.0、6.4
Rated stroke (mm)		16			25		40			60			100
Actuator model		ZHA/B-22		ZHA/B-23			ZHA/B-34			ZHA/B-45			ZHA/B-56
Flow characteristics		Equal percentage, linear
The valve cover form		Bellows seal-40～+350℃
The gland form		Bolt clamp
The sealing filler		V PTFE, V type of flexible graphite packing
Spool form		The single seat, sleeve type