Currency angular Ionic

Hi, how can i change “.” for “,” in my ionic ex: teste R$ 1.500,00

I try change {provide: LOCALE_ID, useValue: ‘pt-BR’}
detalhes.module.ts

import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { DetalhesPage } from './detalhes';
import { LOCALE_ID } from '@angular/core';
import { Pipe, PipeTransform } from '@angular/core';
import { CurrencyPipe } from '@angular/common';

@Pipe({
  name: 'currencyFormat'
})
export class CurrencyFormatPipe implements PipeTransform {
    transform(value: number, locale: string, currency_symbol: boolean, number_format: string = '1.2-2'): string {
        if (value) {

            let currencyPipe = new CurrencyPipe('pt-BR');
            let new_value: string;

            new_value = currencyPipe.transform(value, locale, currency_symbol, number_format);
            if (locale = 'BRL') {
                new_value = new_value.replace('.', '|').replace(',', '.').replace('|', ',');
            }

            return new_value
        }
    }
}
@NgModule({
  declarations: [
    DetalhesPage,
  ],
  imports: [
    IonicPageModule.forChild(DetalhesPage),
  ],
  providers: [
    {provide: LOCALE_ID, useValue: 'pt-BR'}
  ]
})
export class DetalhesPageModule {}

        <p>{{ item.valor | currency}}</p>
        <p>{{ teste | currency:"BRL"}}</p>