TECVAL VW-20

VW20-05 - TECVAL,S.L., 2023 all rights reserved.

VW-20
3-Pieces Forged Check Valve Working Pressures: 100 \| 160 bar (1500 \| 2300 PSI)
Tecval VW-20 3-Pieces Check Valve is a Forged design. Due to its 3-Pieces design allows easy and safe assembly. Unique in the market with Superduplex spring. The forged connections result a mechanical stronger and more durable product, especially suitable for working in high corrosive environment. They are manufactured in several sizes, connections and alloys, always under ASME B16.34.

Features

	Standard Superduplex Spring.
	Unique design between forged Flanges.
	Three pieces to allow a full disassembling.
	No maintenance required.
	Easy installation in any position.
	100% tested.

Options

	NBR seats. B
	Male-Female (MxF) end connections. C
	High working pressure 160 bar (2300 PSI). I
	Male-Male (MxM) end connections. J
	NEOPREN seats. N
	FPM seats. VI

Technical data
Max. Pressure	Standard working pressure: 100 bar (1500 PSI) High working pressure 160 bar (2300 PSI)
Obert. Press	Horizontal flow direction: 1 bar (14,5 PSI) Flow going down: 500 mbar (7,3 PSI) / Flow rising: please consult.
Temperatures	-20ºC/200ºC (-4ºF/392ºF)
Dimensions	1/2"	3/4"	1"	11/4"	11/2"	2"
A	75	75	90	97	102	125
B	56	56	69	90	90	106
C	15	15	20	30	30	38
Order codes
BSP	2711	2715	2721	2741	2745	2751
SW	2713	2717	2723	2743	2747	2753
BW Sch.40s	2714	2718	2724	2744	2748	2754
NPT	2712	2716	2722	2742	2746	2752
VIC Grooved	-	2719	2720	2740	2749	2750

* Dimensions in mm

Materials

Nº	Part	AISI-316L A4	SuperDuplex AS
1	Body	AISI-316L (1.4404)	Superduplex (1.4410/ 1.4501)
2	Bonnet	AISI-316L (1.4404)	Superduplex (1.4410/ 1.4501)
3	Stem	AISI-316L (1.4404)	Superduplex (1.4410/ 1.4501)
4	Seat	EPDM	EPDM
5	Spring	Superduplex (1.4410/ 1.4501)	Superduplex (1.4410/ 1.4501)
6	End connection	AISI-316 (1.4401)	Superduplex (1.4410/ 1.4501)
7	Screw	AISI-316L (1.4404)	AISI-316L (1.4404)
8	Grower Washer	AISI-316L (1.4404)	AISI-316L (1.4404)
9	Nut	AISI-316L (1.4404)	AISI-316L (1.4404)
10	O-ring	EPDM	EPDM

Ordering information

References are formed by three parts:

Valve Code  Look for it in the order codes chart on the previous page.
Option/s  If required, add the code/s from the options section on the previous page (in alphabetical order).
Material  Look for the code on the materials chart.

Example: Check Valve VW-20 1"NPT Superduplex:
2722 AS The reference required to place the order is 2722AS .

Tests

100% tested in accordance to API STANDARD 598, each valve is tested to check the leakage in the seats. Upon request, the corresponding materials and test certificates can be delivered with the valve.

Packaging

All TECVAL valves are supplied packed in individual polyethilene airtight bags. End screw connections are protected with polyethilene caps. Everything is 100% recyclable.

Elastomers & Seats

Seat (position 4) and O-ring (position 10) can be made of different materials: Nitrile B , FPM VI or Neopren N , considering the working conditions. Likewise the seats can be made in other materials upon request.