IP code – Ingress Protection Ratings(valve actuator)

IP – Ingress Protection Ratings, also named as International Protection Rating, is used to specify the environmental protection – electrical enclosure – of electrical equipment. like valve electric actuator.

Ingress Protection (IP) ratings are developed by the European Committee for Electro Technical Standardization (CENELEC) (NEMA IEC 60529 Degrees of Protection Provided by Enclosures – IP Code), specifying the environmental protection the enclosure provides.
The IP rating normally has two (or three) numbers:
1. Protection from solid objects or materials
2. Protection from liquids (water)
3. Protection against mechanical impacts (commonly omitted, the third number is not a part of IEC 60529) Continue reading “IP code – Ingress Protection Ratings(valve actuator)”

Thermoplastic materials as valve seat

A large number of thermoplastic materials are offered in valves, mainly as soft-seat  options for ball valve applications. Also lined valves like, lined butterlfy valve, lined globe valve, lined check valve. For this reason, the following section outlines some of the fundamental aspects of the properties, capabilities and application of these materials.

Material types
Mechanical properties
Chemical resistance

Material types

Table 1 shows the polymer types, used in valve applications, together with common abbreviations and Tradenames for the materials mentioned in these Guidelines. Continue reading “Thermoplastic materials as valve seat”

Globe Valve Installation,Operation and Maintenance Manual

Globe Valve Installation, Operation and Maintenance Manual

Valve type
Hand operated rising stem straight style globe valve

Usage and feature
Usage
Series flanged ends cast steel are used in oilfield, chemical-industrial, power-station for cutting and connecting the pipe.

Features

Nominal

pressure

Strength testing  pressure

High-pressure

Sealing testing

Pressure

Low-pressure

Sealing testing

Pressure

Temperature

Range

Applicable medium

1.6Mpa

2.4Mpa

1.76Mpa

Water, oil

150Lb

3.0Mpa

2.2Mpa

0.6Mpa

≤425°C

gas

300Lb

7.5Mpa

5.5Mpa

600Lb

15 Mpa

11 Mpa

Working theory and configuration direction
1. Series globe valve are designed and made under standard ASME16.34,JB/T7746, tested under standard API598,JB/T9092.
2. Hand wheel moving clockwise will close the disc and cut the pipe. As anti-clock will open the disc. Continue reading “Globe Valve Installation,Operation and Maintenance Manual”