Manual Extension Stem Butterfly Valve Plate

	name	Manual Extension Stem Butterfly Valve Plate
	Size Range	2~8"(DN50~DN200)
	Pressure	PN10, PN16, Class125
	Body Materials	Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze
	Seat	NBR, EPDM, Neoprene, PTFE, Viton
	Disc Materials	Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
	Operate	Manual, Worm gear, Pneumatic, Electric-Motorized

Product Description

Adoptive Standards:
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211

Standard Test :
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test: On request, any other test can be carried out according to special instruction by client.

Features:
Single Eccentric Disc-Shaft
Anti-Blow Out Stem
Bi-Directional
Fire safe Design
Low Friction Body Seat
Zero Leakage

Product Process

Packaging and transportation

Our history

Product Certification

1.We promise no leakage and breakage for valves. Every valve will test for 2 times test pressure before leave factory. We will replace the valve if there is quality problem within 24 months guarantee period.
2.We obtained ISO9001 quality system certification,ISO14001 certification,GB/T 28001 certification.We inspect the parts of valve carefully, 48 produce steps, try to supply you ideal valve.
3.We can supply different kinds of materials according to customers' requests,such as DI,cast steel,SS304,SS316 body and disc. EPDM,NBR,PTFE,Viton etc. Enough stock ensure fast delivery.
4.We have more than 150 types body moulds, which include ISO,DIN,ANSI,BS standard.
5.We own full-automatic machine paint line, match high-temperature baking house,which makes smooth paint and good appearance of valve.

Our Customers

In the 21 years, we have customers in many countries around the world.

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